Performance Standard for Issuing a Test
Certificate for Containers Securing Class 1
Substances (Explosives)
For test certifiers
June 2014
PERFORMANCE STANDARD
2
Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Preface
This performance standard is one of a series produced by the Environmental Protection Authority (EPA) to
assist test certifiers in their certification work. The EPA expects all test certifiers to operate in accordance
with this standard. This and other standards relevant to the work of test certifiers are published on the EPA’s
website www.epa.govt.nz.
The performance of test certifiers will be audited against the performance standards issued by the EPA. The
investigation of any complaints made against a test certifier will also take into account performance against
these standards. If through auditing and/or investigation of complaints it is found that a test certifier does not
meet the relevant requirements (for example, by not performing their functions in accordance with the
relevant regulations and performance standards) the EPA may amend or cancel the test certifier’s approval
in accordance with its powers under the Hazardous Substances and New Organisms Act 1996 (Act).
This performance standard sets out the requirements for a test certificate to be issued for the design and
construction of a magazine or readily moveable container for the storage of class 1 substances. It covers
only those items subject to test certification with respect to matters addressed by this performance standard
and is not intended to be a comprehensive review of the relevant legislation. Test certifiers are encouraged
to refer to the Hazardous Substances (Classes 1 to 5 Controls) Regulations 2001 (Regulations)1 for matters
not addressed in this performance standard.
This performance standard includes checklists of the regulatory requirements for test certifiers to use. These
checklists (or equivalent documents used by the test certifier) must be completed and kept for future
reference and audit.
This performance standard for magazines and readily moveable containers holding class 1 explosives was
issued in June 2014.
There is a companion performance standard, also published in June 2014, for test certifiers issuing a test
certificate for hazardous substance locations for class 1 substances, i.e. where explosive magazines are
located.
1
All references in this standard to a “regulation” are to regulations under the Hazardous Substances (Classes 1 to 5 Controls)
Regulations 2001, unless specified otherwise.
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Introduction
This performance standard establishes the procedure that test certifiers must follow, and matters they must
check for, when issuing a test certificate for the design and construction of magazines and readily moveable
containers used to store class 1 substances (explosives).
Class 1 substances must, with some exceptions, be secured at a hazardous substance location or
designated use zone, in a container (magazine or readily moveable container) that meets the requirements
of regulations 23 and 24 of the Regulations.
The performance standard explains how a test certifier should assess compliance of a magazine and readily
moveable container against the HSNO approved code of practice Storage of Explosives, HSNOCOP 55,
March 2013 (HSNOCOP 55), which in turn incorporates the Australian Standard 2187.1–1998, Explosives –
Storage, transport and use: Part 1. Storage (hereafter “AS2187.1–1998”). AS2187.1–1998 sets out the
technical elements that a test certifier must assess and the level of acceptability required for a test certificate
to be issued. Where the requirements of AS2187.1–1998 have not been met the test certifier must still
consider whether the requirements in regulation 23 have been met for the magazine or readily moveable
container under consideration.
The performance standard is primarily intended for magazines and readily moveable containers for the
storage of class 1 substances of categories B, C and D. It is not primarily intended for the storage of
pyrotechnic substances (class 1 category G) where other means of compliance with storage requirements
may be more suitable. However, as magazines constructed to this standard may be used for pyrotechnics,
some guidance in this area is provided.
This performance standard:
 identifies the requirements to issue a test certificate for the design and construction of a magazine and
readily moveable container;
 provides guidance on the steps that test certifiers should follow to confirm the requirements have been
met;
 provides a template that test certifiers should use to keep a record of their assessment;
 provides a point of reference against which the performance of test certifiers may be audited; and
 provides a point of reference for the investigation of any complaint against a test certifier.
The standard is not a complete formula that will allow the user to unerringly achieve the certification of a
magazine or readily moveable container as compliant with the Regulations or AS2187.1–1998. It assumes
competence and knowledge on the part of the certifying person who will need to have access to and a
knowledge of the Regulations and AS2187.1–1998.
Persons certifying magazine locations will need to be aware of the limitations they face when inspecting
magazines and readily moveable containers that are already constructed and use expert judgement, based
on their knowledge of magazine construction generally and their historical experience with a particular
magazine and facility.
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Regulatory requirements
Where table 7 of Schedule 2 of the Regulations requires a substance (i.e. certain explosives) to be secured
in a magazine, that magazine must have a test certificate2 certifying that it:
 meets the design requirements of regulation 23(1)(a), or the requirements of a Code of Practice approved
by the EPA for the construction of magazines; and
 is constructed according to regulation 23(1)(a), or the requirements of a Code of Practice approved by the
EPA for the construction of magazines.
Similarly, where table 7 of Schedule 2 of the Regulations requires a substance (i.e. certain explosives) to be
secured in a readily moveable container, that container must have a test certificate3 certifying that it:
 meets the design requirements of regulation 23(2), or the requirements of a Code of Practice approved by
the EPA for the construction of readily moveable containers; and
 is constructed according to regulation 23(2), or the requirements of a Code of Practice approved by the
EPA for the construction of readily moveable containers.
The EPA has approved HSNOCOP 55 as an alternative to the design and construction requirements of
regulations 23(1)(a) and 23(2).
HSNOCOP 55 in turn has approved the following parts of AS2187.1–1998 for this purpose:
Section 2.2 Portable Magazines
Section 2.3 Relocatable Magazines4
Section 2.4 Fixed or Permanent Magazines – Above Ground5
Appendix D Relocatable Magazines – Construction Details
Appendix E Converted Freight Containers for Use as Magazines – Construction Details
Appendix F Relocatable Magazines.
The remainder of this performance standard details the requirements of AS2187.1–1998 as relevant to
different types of containers.
If a magazine or readily moveable container does not meet the relevant requirements of AS2187.1–1998, the
test certifier must still consider whether the magazine or container meets the relevant requirements of
regulation 23, and may issue a test certificate if it does.
2
Regulation 24(1) and 24(2).
3
Regulation 24(4) and 24(5).
4
There are two exceptions to the approval of Section 2.3 of AS2187.1, namely paragraph 2.3.2.2(c), which relates to weather shields
and paragraph 2.3.2.4(a)(i), which relates to door thickness for magazines constructed before 4 March 2013.
5
There is one exception to the approval of Section 2.4 of AS2187.1, namely paragraph 2.4.4, which cross-references to paragraph
2.3.2.4(a)(i), which relates to door thickness for magazines constructed before 4 March 2013.
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Items to be test certified
Readily moveable containers
The EPA has approved HSNOCOP 55 as a code of practice for certifying, under regulation 24(4), that readily
moveable containers are appropriately constructed. HSNOCOP 55 has approved Section 2.2 of AS2187.1–
1998 for the construction of readily moveable containers for the storage of class 1 explosives. HSNOCOP
55 recognises a readily moveable container as an internal portable magazine as defined in Australian
Standard 2187.0–1998, Explosives – Storage, transport and use: Part 0. Terminology.
To issue a test certificate under the provisions of Section 2.2 AS2187.1–1998 the test certifier must verify
that the readily moveable container:
1.
Is constructed of:
(i)
Steel not less than 0.8 mm thick and internally lined with wood that must be securely fastened to
the steel; or
(ii)
Aluminium not less than 1.1 mm thick and internally lined with wood that must be securely
fastened to the aluminium;6 or
(iii)
2.
Water resistant plywood (see AS/NZS 2270) not less than 19 mm thick.
Is fitted with a close-fitting lid secured by a steel hasp, steel staple and steel hinges except that where
gunpowder is stored, copper or copper alloy (brass) must be used.
3.
If the container is used for the storage of detonators, it has, without permitting direct access to the
contents under normal conditions, a locking or hinging mechanisms that enables at least one edge of
the lid or door to rise or move outward at least 10 mm when subjected to internal pressure. This is
usually accomplished by allowing some vertical movement between the hasp and staple.
4.
Is fitted with a 6 lever ‘safe lock’ (mortice deadlock or similar). Where a padlock is used it must have a
hardened shackle and pad constructed to provide a high level of resistance to fracture or rupture. It
must also have a key system known as a ‘restricted system’ if the padlock is of the pin-tumbler type.
Where the padlock is of the lever type, there must be a minimum of 5 levers. ‘Restricted system’ means
that duplication of keys cannot proceed without specific consent from a nominated authority.
It is generally not practical for a test certifier to assess locks in the field. The owner of the readily
moveable container should have certification from the manufacturer or the lock provider.
5.
Is fitted with handles for lifting. Forklift pockets may suffice instead of handles.
6.
Is painted internally and externally. Painting (sealing) minimises the chance of the wood absorbing
ammonium nitrate.
6
The wood is there to provide insulation and strength.
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
7.
Is fitted with a restraint device for securing the lid in the fully open position. This is an important safety
provision to prevent the lid slamming and potentially initiating the explosives by impact or injuring the
user.
A typical internal portable magazine is shown in Figure 2.2 of AS2187.1–1998.
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
External portable magazines
The EPA has approved HSNOCOP 55 as a code of practice for certifying, under regulation 24(2), that
magazines are appropriately constructed. HSNOCOP 55 has approved Section 2.2 of AS2187.1–1998 for
the construction of external portable magazines for the storage of class 1 explosives.
To issue a test certificate under the provisions of Section 2.2 of AS2187.1–1998, the test certifier must verify
that the magazine:
1.
Is constructed in accordance with the following:
(i)
A box of 5 mm thick steel plate with continuously welded joints;
(ii)
A close fitting lid to overhang 50 mm, hinged externally with an external support for the lid; the
support must be effective and robust;
(iii)
An inner lining of 12 mm thick plywood. The use of particle board should be avoided;
(iv)
A vent, shield and screen to be located at the rear as specified in the requirements for a
relocatable magazine (see following section). Vents must be constructed to prevent easy access
from outside;
(v)
Welded steel handles of 12 mm diameter steel. If the handles are not precisely 12 mm diameter,
the certifier must confirm they are fit for purpose.
2.
Has an external protective finish such that all external surfaces are protected against corrosion.
3.
Is placed on a pad or footing to prevent corrosion and water ingress.
4.
Is protected against unauthorised removal through the use of hold down bolts or other equivalent
method. If hold down bolts are used, the bolt heads must be in a secure location, such as inside the
magazine.
Two x 15 mm diameter holes provided near the front of the steel floor & accessible from the door
opening have proved adequate for relocatable magazines.
An adequate method of installation would be to ensure that holding down bolts are grouted in to a
minimum depth of 200 mm, in a concrete plinth measuring at least 500 mm greater than both
dimensions of the base area of the magazine. The vertical thickness of the concrete should be a
minimum of 350 mm of which 250 mm should be buried beneath the ground surface and 100 mm
should project above. Test certifiers should apply some discretion with regard to the magazine
installation, provided that it is secure from attack by anything from bolt cutters to a front-end loader.
5.
Has external security comprised of:
(i)
a staple of 8 mm diameter high tensile steel and a hasp of 3 mm thick steel welded to the
magazine or an equivalent mechanism sized for a suitable padlock as specified below; and
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
(ii)
hinge protectors and a padlock guard of 5 mm thick steel commonly known as a shackle shield.
Hinge protectors may be a partial cowl or internal lugs.
6.
Is fitted with a 6 lever ‘safe lock’ (mortice type or similar). Where a padlock is used it must have a
hardened shackle and pad constructed to provide a high level of resistance to fracture or rupture. It
must also have a key system known as a ‘restricted key system’ if the padlock is of the pin-tumbler type.
Where the padlock is of the lever type, there must be a minimum of 5 levers. ‘Restricted key system’
means that duplication of keys cannot proceed without specific consent from a nominated authority.
It is generally not practical for a test certifier to assess locks in the field. The magazine owner should
have certification from the manufacturer or the lock provider.
7.
Is fitted with a restraint device for securing the magazine door or lid in the fully open position. This is an
important safety provision to prevent the door or lid from slamming and potentially initiating the
explosives by impact or injuring the user.
8.
Where electrical fittings and wiring are present, they must comply with AS/NZS 3000 for hazardous
zones and satisfy the requirements of Hazardous Zone Classification specified in Section 2 of
Operational Safety Committee (Explosives) (OSC (E)) 81/1.Hazardous Area and Explosives Area
Electrical Installation Requirements. Note that electrical installations inside magazines should be
avoided.
It is not practical for a test certifier to check electrical fittings and wiring beyond seeking confirmation
from the person in charge of the magazine and seeing an electrical certificate that has been issued by a
competent electrician.
9.
If the portable magazine is used only for the storage of propellants, black powder or pyrotechnic
substances and devices, the test certifier must verify that the magazine:
(i)
Is of sturdy and spark proof construction;
(ii)
Is constructed of wood or is wood-lined with no internal exposed ferrous material;
(iii)
Has any internal screws and nails countersunk, with the cavities filled with a suitable filler;
(iv)
Has lockable and close-fitting doors or lids that overlap the opening; and
(v)
Where used for black powder, has nonferrous fittings, e.g. hinges, hasp and staple.7
Test certifiers should check for clear markings on the magazine that indicate it is for the storage of spark
sensitive materials and not for commercial blasting explosives.
7
The use of nonferrous fittings is a requirement of AS2187.1–1998, but in practice ferrous fittings will be acceptable provided any
contact with black powder is avoided.
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Relocatable magazines
The EPA has approved HSNOCOP 55 as a code of practice for certifying, under regulation 24(2), that
magazines are appropriately constructed. HSNOCOP 55 has approved Section 2.3 of AS2187.1–1998 for
the construction of relocatable magazines for the storage of class 1 explosives.
Relocatable magazines include:
(i)
steel magazines;
(ii)
non-collapsible general-purpose freight containers that comply with AS/NZS 3711.4 and this Standard;
and
(iii)
modular steel or concrete magazines.
There are many elements of relocatable magazines that cannot be assessed after construction. Where
appropriate some guidelines are given to assist test certifiers depending on whether they are conducting a
field or factory inspection.
Test certifiers need to refer to the Appendices D, E and F, in AS2187.1–1998, where there are design
drawings that clarify many of the requirements in this Performance Standard.
Persons certifying magazines will need to be aware of the limitations they face when assessing a magazine
that is already constructed and use expert judgement, based on their knowledge of magazine construction
and their historical experience with the particular magazine and facility they are assessing, when issuing a
test certificate.
To issue a test certificate under the provisions of Section 2.3 of AS2187.1–1998, the test certifier must verify
that the design and construction of the magazine is in accord with the following provisions:
Construction
General
1.
2.
Relocatable magazines must be sized and constructed with:

stable stacking heights for packages;8

aisle(s) to permit access, stock rotation and visibility of manufacturing dates; and

sufficient ventilation.
Relocatable magazines for storing propellant, black powder, and pyrotechnic substances and devices of
Class 1.3 or 1.4, compatibility groups C or G, may be built to less stringent design requirements with
respect to doors, locking mechanisms and external cladding than specified in this Standard for other
explosives.
All such magazines must be provided with a sign permanently fixed to the lining bearing the words:
8
See also Test Certifier Performance Standard, Performance Standard for Issuing a Test Certificate for a Hazardous Substance
Location (Class 1 Substances), June 2014.
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
THIS MAGAZINE IS SUITABLE ONLY FOR THE STORAGE OF EXPLOSIVES WITH A
CLASSIFICATION OF 1.3 OR 1.4, COMPATIBILITY GROUPS C AND G.
3.
Test certifiers should refer to the guidelines given in AS2187.1–1998 for the construction of relocatable
magazines, specifically:

Appendix D, for steel magazines; and

Appendix E, for converted freight containers
Guidelines for the dimensions of relocatable magazines are given in Table F1, Appendix F.
For converted (6 m) freight containers, a design capacity of 7,500 kg may be expected based on the
same design capacity given in Table F1, Appendix F of AS2187.1–1998. In general, to enable stock
rotation and access, allow one tonne of blasting explosives or boosters for two square metres of floor
space. More space will be required for less dense explosives and detonators; less space may be
needed for smaller magazines.
Outer case and frame – steel magazines
4.
The outer case and frame for relocatable (steel) magazines must comply with the following:
(i)
The outer case must be fabricated from Grade 250 steel to AS/NZS 3679.2:1996,9 Structural
steel - Welded I sections, not less than 5 mm thick with all edges either continuously welded or
folded as per AS/NZS 1554.1.
(ii)
The door frames must be reinforced internally with either 75 mm × 12 mm flat steel bar or a
64 mm × 64 mm × 10 mm steel angle welded continuously around the whole opening. A
weatherstrip fabricated from 12 mm wide × 3 mm thick steel bar must be welded continuously
around the inside of the whole door opening. Where the magazine does not have an internal
wooden door, the weatherstrip on the door frame is important to provide protection from external
sparks.
The test certifier will only be able to effectively check the internal reinforcement during
construction or from the design drawings. Whenever possible, the test certifier should review the
design drawings.
(iii)
The case must be securely welded to a frame consisting of 76 mm × 38 mm rolled steel channels
or equivalent section, adequately spaced to impart sufficient rigidity to the outer casing and the
inner box.
The test certifier should refer to AS2187.1–1998, Figures D6(c) and D7, Appendix D, for doorframes
and Figures D3 and D4, Appendix D, for cases and frames.
9
Superseded by AS/NZS 3679.2:2010
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Outer case and frame – converted freight container
5.
The outer case and frame for relocatable magazines made from converted shipping containers must
comply with the following:
(i)
The cladding of the walls and roof must be of steel plate fabricated so that the combined steel
thickness is not less than 5 mm. It must be securely fixed by welding to the existing walls and roof
with all edges continuously welded. It must have an internal timber lining.
It can be difficult to measure the wall and roof plates on modified containers. Test certifiers will
need to review design drawings.
(ii)
The floor must have a galvanized steel plate not less than 3 mm thick, securely attached but not
welded onto the steel floor beams, and must be covered by a timber floor. After construction, this
can only be assessed from design drawings.
The test certifier should refer to AS2187.1–1998, Figure E6, Appendix E, for cladding, walls, roof and
floor.
Weather shield
6.
In addition to the specific requirements for steel magazines and converted freight containers an effective
weather shield must be fitted above the door opening for all relocatable magazines.
7.
Where practicable, the weather shield must be set not more than 10 mm above the door opening and
must be either:
(i)
fabricated from steel plate of 3 mm thickness angled 45° from the horizontal, welded continuously
to the case to give a horizontal projection over the door of not less than 40 mm, and extending at
least 60 mm beyond the door opening on each side; or
(ii)
8.
formed by an extension of the roof plate; and
Welding must comply with AS/NZS 1554.1.
Inner lining – timber
9.
The inner lining must have an internal surface free of iron or steel. Once lined it is not possible to
assess the internal steel frame. This may only be assessed during construction or by reviewing the
design drawings.
10. For timber linings:
(i)
the timber must be of close-jointed construction, strongly fastened at the junction of the roof, floor,
ceiling side and rear panels, and rigidly spaced at least 75 mm from the outer case by the steel
frame (see AS2187.1–1998, Figure E5, Appendix E);
(ii)
no timber must be in contact with the outer steel case;
(iii)
timber must be not less than:
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
(iv)
(v)
(a)
19 mm, for tongue and groove hardwood;
(b)
20 mm, for interior blockboard;
(c)
12 mm, for interior plywood;
internally exposed nails and screws must be either
(a)
non-ferrous metal; or
(b)
may be of galvanized or cadmium-plated steel if punched or recessed and puttied over;
where an inner box is used as an inner lining, the inner box door must:
(a)
be not less than 12 mm plywood (see AS/NZS 2272) backed by a 50 mm × 25 mm (nominal)
timber frame;
(b)
have a minimum lap of 12 mm over the outside of the inner box opening at jambs and head
and a 3 mm minimum clearance at floor level;
(c)
be set at least 12 mm above the top edge of the bottom weatherstrip on the steel door
opening;
(d)
be hung on three non-ferrous hinges;
(e)
be fitted with one or more brass barrel bolt catches with an oversize socket secured with
brass bolts and nuts; and
(f)
have steel fittings, provided they are not exposed to the interior when the door is closed.
11. Test certifiers should note that:
(i)
An inner box with door is not mandatory.
(ii)
Doors to inner boxes tend to be fragile, they impede access and the hinges break.
(iii)
A decent internal weather strip on the door frame and robust wood lining on the steel door is
adequate.
(iv)
To prevent corrosion, copper and copper alloys should not be used in contact with aluminium.
(v)
An earthing strap may be required to provide electrical continuity to ground.
The test certifier should refer to AS2187.1–1998, Figure E5, Appendix E, for internal timber linings.
Inner lining – aluminium
12. The inner lining must have an internal surface free of iron or steel.
13. When aluminium lining is used, it must be fixed to the magazine structure by aluminium rivets. The
thickness of aluminium sheet must be not less than:
(i)
5.0 mm for flat sheet or 2.0 mm for extruded profiles for wall sections to 600 mm above floor
level; or
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
(ii)
1.6 mm for flat sheet for upper wall and ceiling sheeting.
The use of steel channel spacers will minimise the transfer of heat from the steel case to the inner lining
if the magazine is involved in a fire.
Outer doors – steel or concrete magazines
14. Outer doors for steel or concrete magazines:
(i)
for magazines constructed on or after 4 March 2013, must be fabricated from steel plate with a
10 mm minimum thickness to provide a maximum clearance of 3 mm all round from the frame to
the door; or
(ii)
for magazines constructed before 4 March 2013 may be 5 mm thick; and
(iii)
must be hung from a structural steel frame at least equal to the requirements of paragraph 4
(outer case and frame – steel magazines). They must be built in to the masonry, concrete or
steel structure surrounding them.
(iv)
The door hinges must be external lug and pin type, bronze bushed and attached either by
dowelling and screwing or by continuous welding.
(v)
Hinge blocks and sockets must be of not less than 25 mm square bar for magazines of capacity
up to 500 kg, and not less than 38 mm square bar for magazines of capacity 1,000 kg and over
with a hole drilled and threaded in the side and through the bronze bush of both upper and lower
hinge blocks to take a grease nipple.
(vi)
The doors must swing outwards through at least 150° moving freely without binding. They must
close parallel with the frame, finishing with a recess of 5 mm min below the face of the door frame
when closed.
15. Test certifiers should note that:
(i)
Grease nipples are important on hinges to ensure doors swing easily. If they warp, the closure
puts strain on the hinges and they may break;
(ii)
Magazines that have been relocated without proper attention to the slinging during lifting may
twist and doors will not swing freely or close neatly.
16. The test certifier should refer to AS2187.1–1998, Figures D1, D6, Appendix D, and Figure E8, Appendix
E, for doors and inner doors.
Outer doors – converted freight container
17. Outer doors for converted freight containers:
(i)
Where double doors are fitted
(a)
one door must be continuously welded shut and covered by additional cladding (see
paragraph 5(i) above); or
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
(b)
where both doors are to be used to provide vehicular access, appropriate locking
mechanisms must be fitted to both doors (see following subsection headed “Locking
devices”); or have a minimum lap of 12 mm over the outside of the inner box opening at
jambs and head and a 3 mm minimum clearance at floor level; or
(c)
both doors must be removed and one frame and door assembly must be fitted to comply
with paragraph 14;
(ii)
existing doors must be additionally clad with low-carbon steel plate not less than 5 mm thick, and
be reinforced with a 64 mm × 64 mm × 10 mm steel angle welded to the inside edge of the door
on all sides;
(iii)
door hinges may be either external lug-and-pin type complying with paragraph 14(iv) and (v) or
the existing hinges, provided that the hinge pins are protected from removal when the door is
closed.
(iv)
the exterior edges of the door and door jamb must be fitted with a welded low-carbon steel angle
so that when the door is closed, the gap between them is as small as possible but in no case
greater than 6 mm.
18. The test certifier should refer to AS2187.1–1998, Figures E7 and E8, Appendix E, for exterior edges.
Lifting lugs
19. Where they are required, lifting lugs must consist of four lifting lugs fabricated in accordance with
AS/NZS 3711.3 welded to the outer case. It is important that lifting lugs are positioned to allow the
magazine to be lifted with minimal distortion or twisting.
20. The test certifier should refer to AS2187.1–1998, Figures D1 and D2, Appendix D, for lifting lugs.
Insulation
21. Insulating material such as mineral wool or equivalent, which is not deemed combustible when tested in
accordance with AS 1530.1, must be placed to fill the 75 mm space between the steel case and the
inner box on top, bottom and all sides.10,11
Vestibules
22. Where a vestibule has been created by providing a partition wall at the front of the magazine, the
construction, linings, and other items associated with that vestibule must comply with this performance
standard.
10
11
50 mm insulation has been found to be adequate in New Zealand. The insulation will be concealed and impossible to check after
construction.
For existing relocatable magazines, if there is less (or no) insulation, some discretion should be applied by test certifiers.
Retrofitting insulation is not generally a practicable option.
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Ventilation
General
23. With the door(s) of the magazine closed, the ventilation system must be adequate to:
(i)
Avoid the build-up of hazardous or dangerous vapours or fumes;12 and
(ii)
minimise temperature cycling damage to the stored products.
Guidelines on the number and location of ventilation openings for products which may give rise to
hazardous fumes or vapours are given in AS2187.1–1998, Table F2 and shown in Figures D3 to D5,
E2, E3, E5, Appendix E, and Figure C6, Appendix C.
Guidelines are shown in AS2187.1–1998, Figure D5, Appendix D, for wall ventilation openings.
24. It is important that all vents are effective as vents while also not allowing ingress by either intruders for
mischievous or malicious purposes or sparks.
Weather shields for ventilation openings
25. Side openings must:
(i)
be shrouded externally with closed side weather shields fabricated from 5 mm thick steel plate
extending 25 mm below the bottom of the vent;
(ii)
have a minimum open area in the horizontal plane of 375 mm × 100 mm. Note that these items
are difficult to check after construction. Test certifiers should refer to the design drawings
whenever possible;
(iii)
be welded to the case; and
(iv)
consist of 5 mm thick steel plate perforated with holes that do not occupy more than 45% of the
gross area and are not larger than 25 mm diameter.
26. The roof ventilation duct must be a steel channel 200 mm × 100 mm × 6 mm or equivalent, stitch
welded across the top of the magazine to protect the vertical steel vent pipe.
27. The test certifier should refer to AS2187.1–1998, Figure D5, Appendix D, for weather shields.
Internal insect screens on vents
28. Ventilation openings must have a screen fitted internally to prevent the ingress of insects and other
foreign matter. Screens may be made of:
(i)
wire gauze of stainless steel wire with 1.6 mm aperture and 0.45 mm diameter; or
(ii)
steel plate 1 mm thick perforated with holes that do not occupy more than 45% of the gross area
and are not larger than 3.0 mm in diameter.
12
With pyrotechnics/black powder, there are no vapours or fumes released and ventilation should be unnecessary.
June 2014 EPA0335
16
Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Passages to inner openings
29. For internal passages to ventilation openings, side openings must:
(i)
be formed from 1.6 mm steel sheet fabricated into a box section;
(ii)
be staggered to provide a minimum clear distance of 300 mm between the inner and outer vents;
(iii)
be the same size as the outer vents;
(iv)
have two timber blocks vertically fitted to prevent blockage, with one on each side of the inner
passages with minimum dimensions:
(a) For magazines of up to 100 kg design capacity, 400 mm × 50 mm × 25 mm; or
(b) For magazines over 100 kg design capacity, 600 mm × 50 mm × 25 mm; and
(v)
be fitted with a screen (see paragraph 28).
These items are difficult to check after construction. Some indication of compliance may be gained by
measuring the heights of the vent openings on the inside and outside of the magazine.
30. For internal passages to ventilation openings, top openings into the roof ventilation duct must be vertical
steel pipe, 100 mm diameter 3 mm thick, fully welded to the top plate of the magazine and protruding
not less than 25 mm above the bottom plate and below the inner lining. The top of the vent must be
fitted with a screen in accordance with paragraph 28.
31. The test certifier should refer to AS2187.1–1998, Figures E11 and E12, Appendix E.
Rotary-type ventilators
32. Except where permitted below, where rotary-type roof ventilators are installed, the internal opening must
be covered with timber and be fitted with ‘T’-shaped metal duct formed from 1.6 mm thick steel or
aluminium sheet, having a closed base and screened side openings in accordance with paragraph 28.
Alternatively, rotary-type roof ventilators may be fitted to the top of an external weather-shield channel
(see paragraph 26).
33. The test certifier should refer to AS2187.1–1998, Figure E12, Appendix E, for rotary-type ventilators.
Locking devices
Standard
34. Locking devices for doors must comply with:
(i)
In addition to lugs, doors must be provided with steel sliding bolts on the opening side of
minimum size 55 mm × 10 mm, as follows:
(a)
For magazine capacities up to and including 200 kg, two bolts must be provided.
(b)
For magazine capacities greater than 200 kg, three bolts must be provided.
June 2014 EPA0335
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
(ii)
The sliding bolts must be welded to a steel angle frame, and must be retained and guided by neat
slots in 64 mm × 64 mm × 10 mm steel angle welded continuously on both of its sides to the door,
as close as possible to the door edge and over its full height. The bolt frame must be operated by
a peg-and-lever, socketed for a square-shank key. The bolt frame must be locked by a 6-lever
lock screwed to a steel mounting plate welded continuously to the inside face of the door. A
cover of minimum 10 mm square or 25 mm × 6 mm steel bar must be placed over and close to
the rear of the lock and be secured by welding continuously to the mounting plate or the inside
face of the door, to prevent dislodgment of the lock by punching, in such manner that the lock can
be removed sideways for maintenance. An alternative anti-punch arrangement may be installed if
it will give equivalent protection or an improved level of protection. The key for the lock must not
be able to be withdrawn therefrom unless the sliding bolts are fully engaged and locked.
The bolt frame of one door only needs to be provided with a lock and peg-and-lever operating
mechanism provided that the bolt frame opening mechanism of the second door is accessible
only when the first door (fitted with the lock) is open.
After fabrication all this mechanism will be concealed. Test certifiers should assess the
requirements from design drawings, which should be supported by certification from the design
engineer confirming that the magazine has been built to the relevant requirements of AS2187.1–
1998.
(iii)
In addition to sliding bars, the doors must be secured by steel fixed lugs of minimum dimensions
55 mm × 10 mm, as follows:
(a)
For magazine capacities up to and including 200 kg, two lugs must be fitted.
(b)
For magazine capacities greater than 200 kg, three lugs must be fitted.
These lugs secure the door in place should the external hinges be removed.
(iv)
The fixed lugs must be welded to the door on the hinged side and into closed slots, in a single
length of 64 mm × 64 mm × 10 mm steel angle welded continuously on both of its sides to the
door, as close as possible to the door edge and over its full height.
(v)
Where two fixed lugs or sliding bolts are used, the distance from the centre of each lug or bolt to
the adjacent horizontal edge of the door must be 25% of the door height. Where three fixed lugs
or sliding bolts are used, the distance must be one sixth of the door height.13
(vi)
The lever-lock keyhole through the door plate must be accurately formed with a snug fit to the
shape of the key. The keyhole for the square-shank key must be circular with minimum
clearance for the key. Tubular steel pipe extensions of a minimum length of 65 mm, must be
welded to the door face around entries for both keys.
13
This is a very prescriptive requirement and some discretion should be applied by certifiers provided the lugs give effective security.
June 2014 EPA0335
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
(vii)
All bolts and lugs must be free from misalignment or binding and must engage with minimum
clearance to an adequate depth in or behind the frame of the door opening. Sliding bolts when
operated by a square-shank key must move freely and easily.
(viii)
For double opening doors, it is necessary that the bolt frame of one door only be provided with a
lock and peg-and-lever operating mechanism, provided that the bolt frame opening mechanism of
the second door is accessible only when the first door fitted with the lock is open. The opening
mechanism on the second door must have an over centre pivot lock arrangement.
A double door securing mechanism is illustrated in AS2187.1–1998, Figure 2.3.4.
35. The test certifier should refer to AS2187.1–1998:
(i)
Figure D6, Appendix D, and Figure E8, Appendix E, for locking devices;
(ii)
Figure D7, Appendix D, for alternative types of fixed lugs; and
(iii)
Figures D6(a), D6(c), Appendix D, and Figure E8, Appendix E, for bolt fixing and anti-punch
arrangements.
36. An alternative locking arrangement for the door may be used if it will give an equivalent, or an improved,
level of protection.
Electrical
37. Where electrical fittings and wiring are present, they must comply with AS/NZS 3000 for hazardous
zones and satisfy the requirements of Hazardous Zone Classification specified in Section 2 of
Operational Safety Committee (Explosives) (OSC (E)) 81/1.Hazardous Area and Explosives Area
Electrical Installation Requirements. Note that electrical installations inside magazines should be
avoided.
It is not practical for a test certifier to check electrical fittings and wiring beyond seeking confirmation
from the person in charge of the magazine and seeing an electrical certificate that has been issued by a
competent electrician.
Prevention against corrosion
38. The magazine must:
(i)
have an external protective finish such that all external surfaces are protected against corrosion;
and
(ii)
be placed on a pad or footing to prevent corrosion and water ingress.
June 2014 EPA0335
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Fixed or permanent (above ground) magazines
The EPA has approved HSNOCOP 55 as a code of practice for certifying, under regulation 24(2), that
magazines are appropriately constructed. HSNOCOP 55 has approved Section 2.4 of AS2187.1–1998 for
the construction of fixed or permanent (above ground) magazines for the storage of class 1 explosives.
Persons certifying magazines will need to be aware of the limitations they face when assessing a magazine
that is already constructed and use expert judgement, based on their knowledge of magazine construction
and their historical experience with the particular magazine and facility they are assessing, when issuing a
test certificate.
To issue a test certificate under the provisions of Section 2.4 of AS2187.1–1998, the test certifier must verify
that the design and construction of the magazine is in accord with the following provisions:
1.
Fixed or permanent (non-relocatable) magazines located above ground must be constructed from brick,
concrete, steel, stone or equivalent and designed for the appropriate loads as specified in AS/NZS 1170
– Structural Design Actions:
(i)
Floors must be of concrete;
(ii)
Walls must be constructed from 5 mm mild steel, double brick, concrete block, concrete or
equivalent. A steel mesh enclosure of Grade 450 steel or better must be incorporated in the
structure of the concrete, block or brick walls. For double brick walls size F81 galvanized steel
mesh must be used and located within the cavity. For concrete block walls 10 mm diameter
reinforcing bars must be used at 200 mm centres vertically and between courses horizontally to
form a 200 mm square grid. The cavity in the blocks must be filled with 25 MPa concrete. For
reinforced concrete walls the minimum reinforcement must be F81 mesh. Laps in the mesh must
be 200 mm and adjacent verticals must be joined by a 6 mm fillet weld 50 mm long. When
galvanized mesh or bars are used welds must be cleaned of slag and treated with a suitable
galvanizing paint. The security mesh wall must be secured to the reinforcing mesh in the concrete
floors and roof or ceiling by a lap weld as before.
It will not be possible for certifiers to assess this other than at the time of construction or from
design drawings. The design drawings should be certified by a supervising engineer.
(iii)
Structural steel frames, if used, must comply with AS/NZS 1170 – Structural Design Actions and
AS/NZS 3679.2:1996, Structural steel - Welded I sections. The steel mesh security enclosure
must be welded to the frames to provide electrical continuity. The surfaces must be suitably
treated to protect against corrosion.
The design drawings should be certified by a supervising engineer. This will not be assessable
except during construction.
June 2014 EPA0335
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
(iv)
Where a wall lining is used, the material must be non-sparking and may be plywood, aluminium
or a suitable synthetic formulation (see requirements for inner lining for relocatable magazines,
paragraphs 9 to 13);
(v)
Roofs must be either metal sheeting or reinforced concrete. A non-combustible insulation must be
provided under metal roofs and the roof space must be well ventilated. Eaves projecting at least
500 mm from the wall should be incorporated in the design. The use of gutters should be
avoided. F81, Grade 450 security mesh must be included in the roof section and welded to the
security mesh or reinforcing bars in the walls as described. Flashings must be installed to ensure
the structure is weatherproof and restricts entry of birds and vermin.
Eaves are useful for shade and rain protection. Gutters collect leaves and other combustibles
and should be avoided. They are not mandatory.
(vi)
Ceilings may be provided if so required. If provided, a ceiling must be of timber or plywood
installed below the security mesh. Where the ceiling is insulated, it is not necessary to provide
insulation directly below the metal roof. Ceilings are not mandatory.
2.
The dimensions of the magazine must be such that there is at least 2 m2 of internal floor space for every
tonne of explosives stored.
3.
For magazines constructed on or after 4 March 2013, the doorframe, door and door hardware must
comply with paragraphs 4(ii), 14, 17 and 34 to 37 pertaining to the section “Relocatable magazines”.
The steel mesh security enclosure must be welded to the doorframes. For magazines constructed
before 4 March 2013, the doors need only to be 5 mm thick.
4.
The construction, dimensions, weather shields and number of vents, together with the timber blocks
required on the inside of the vent openings, must be in accordance with the requirements for relocatable
magazines, paragraphs 23 to 33.
5.
Where windows are installed, they must be steel framed and the glazing must be 6 mm minimum
perspex or similar. A 5 mm hinged steel plate shutter with internal bolts must be fitted to the inside of
each window. This must be 50 mm larger than the window all round and have suitable supports.
Windows must be provided with steel bars, 19 mm diameter at 100 mm centres.
6.
Skylights must be protected by additional steel grid mesh, welded to the security mesh (at all points of
contact on the perimeter) and located between the skylight and the mesh. The mesh needs to have a
clearance of at least 250 mm on all sides of the skylight. A 5 mm grid mesh is suitable for a skylight
when laid over the security mesh.
Electrical
7.
Where electrical fittings and wiring are present, they must comply with AS/NZS 3000 for hazardous
zones and satisfy the requirements of Hazardous Zone Classification specified in Section 2 of
Operational Safety Committee (Explosives) (OSC (E)) 81/1.Hazardous Area and Explosives Area
June 2014 EPA0335
21
Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Electrical Installation Requirements. Note that electrical installations inside magazines should be
avoided.
It is not practical for a test certifier to check electrical fittings and wiring beyond seeking confirmation
from the person in charge of the magazine and seeing an electrical certificate that has been issued by a
competent electrician.
June 2014 EPA0335
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Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Issuing a test certificate
When a test certifier is engaged to certify an explosives magazine or a readily moveable container they
should follow the procedure set out in the service standard for test certifiers.14 It is essential that the test
certifier:
 collects necessary data in advance; and
 inspects the magazine or readily moveable container, or arranges for a suitably qualified person to
inspect the magazine or readily moveable container to collect information. The inspection should be
within one month of the expiry date of any current test certificate for the magazine or readily moveable
container.
If the test certifier is satisfied the legislative requirements have been met they may issue a test certificate.
The test certificate must be:
 issued in accordance with the HSNO legislation;
 printed from the test certificate register;
 clearly written in plain English; and
 the signature must be the one normally used by the test certifier, not an abbreviated form, or their initials.
Test certifiers must enter data into the EPA test certificate register. They may then print a copy of the test
certificate directly from the register in the correct format and issue this to the person in charge.
A test certificate for a magazine or readily moveable container should be issued for a period not exceeding
5 years.
If any one or more of the requirements has not been met the test certifier must refuse to issue a test
certificate. When the issue of a test certificate is to be refused, section 82(4) of the Act requires that the test
certifier notify:
 the applicant, in writing, with reasons, of the refusal and recommended corrective actions within 10
working days, and
 the appropriate enforcement agency, unless they are satisfied that any potential adverse effect from
failure to comply with the relevant requirements has been satisfactorily avoided.
Notification to the enforcement agency should be done by completing the online notification form available in
the test certificate register.
14
www.epa.govt.nz/Publications/Test-Certifier-Service-Guidelines.pdf
June 2014 EPA0335
23
Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Definitions
AS2187.1–1998
Australian Standard 2187.1–1998, Explosives – Storage, transport and
use: Part 1. Storage.
Day box
A container used at the work site for holding daily requirements of
explosives.
Magazine
A permanent (or fixed) magazine, a relocatable magazine or an external
portable magazine as defined below.
External portable magazine
A portable container constructed in accordance with AS2187.1–1998
and used to store limited amounts of explosives, with a maximum
capacity of 250 kg, or 500 detonators.
Permanent (or fixed) magazine
A container constructed in accordance with AS2187.1–1998 in a
manner which precludes relocation to another site.
Relocatable magazine
A container constructed in accordance with AS2187.1–1998 used to
store limited amounts of explosives which can be relocated from site-tosite either as an integral unit or as modular components for reassembly.
Includes converted freight containers.
Readily moveable container
A container that is designed and constructed so that it can be readily
moved by 1 person in the event of a fire or similar emergency that could
put the explosives at risk of unintended detonation.
HSNOCOP 55 recognises a readily moveable container as an internal
portable magazine as defined in AS2187.0, namely: A portable
container with a maximum capacity of 60 kg, or 500 detonators,
constructed in accordance with AS2187.1–1998 and used to store
limited amounts of explosives in a building that is not a magazine. It
may also be used as a day box or as a container for explosives being
transported.
June 2014 EPA0335
24
Performance standard for issuing test certificates for containers securing class 1 substances (explosives)
Attachment A
Checklist – Issuing a magazine test certificate for class 1 substances
Test certifiers should complete this checklist as part of their assessment when certifying the design and
construction of a magazine or readily moveable container that is used to store class 1 substances. If any of
the regulatory requirements are not met, a test certificate must not be issued. The test certifier must advise
the client and WorkSafe New Zealand of any deficient matters.
Complete and file this checklist along with other information and documentation relevant to the magazine or
readily moveable container. Further guidance on record keeping can be found in the Test Certifier
Performance Standard for Record Keeping (EPA0019, August 2012).
Company name:
Contact name:
Company address:
Date of assessment [site visit]:
Location of magazine (where relevant):
Magazine/readily moveable container
identification details:
Date magazine constructed:
Previous test certificate issued?
Yes
If yes – Certificate number:
Quantities of explosives stored:
Explosives
Detonators
Other matters of relevance:
Test certifier signature
June 2014 EPA0335
Date
No
25
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Readily moveable containers
Requirement
Check for
Construction
Constructed of:

steel not less than 0.8 mm, and internally lined with wood; or

aluminium sheeting not less than 1.1 mm thick, and internally
lined with wood; or

water resistant plywood not less than 19 mm thick
Requirement
met [Yes / No]
Evidence of compliance / Comment
A close-fitting lid with a steel hasp, steel staple and steel hinges; or
A close-fitting lid with a copper or copper alloy (brass) hasp, staple
and hinges
When used for storing detonators, the locking or hinging
mechanisms allows at least 10 mm movement of the lid (e.g.
between hasp and staple)
Locks
Fitted with:

a 6 lever ‘safe lock’ (e.g. mortice deadlock); or

a 5 lever padlock with hardened shackle and pad; and

a ‘restricted key’ system for pin-tumbler padlocks
Lifting handle
Has lifting handles
Protective finish
Painted internally and externally
Lid restraint
Lid fitted with a restraint device for securing in fully open position
A typical internal portable magazine (equivalent to a readily moveable container under the provisions of HSNOCOP 55) is shown in Figure 2.2 of AS2187.1–1998.
June 2014 EPA0335
26
Performance standard for issuing a magazine (Class 1 explosives) test certificate
External portable magazines
Requirement
Check for
Construction
Constructed of:

a box of 5 mm steel plate, continuously welded joints

a close fitting lid to overhang 50 mm, hinged externally with
external lid support

inner lining of 12 mm plywood

a vent, shield and screen at the rear (see below)

welded steel handles of 12 mm diameter steel; or

equivalent lifting attachments
Ventilation
General
Is ventilation system adequate to:

avoid the build-up of hazardous or dangerous vapours or
fumes?; and

Weather shields for
vent. openings
minimise temperature cycling?
Side openings:

are shrouded externally with closed side weather shields
fabricated from 5 mm thick steel plate extending 25 mm below
the bottom of the vent

have a minimum open area in the horizontal plane of 375 mm
× 100 mm

are welded to the case; and

consist of 5 mm thick steel plate perforated with holes that
(a) do not occupy more than 45% of the gross area and
(b) are not larger than 25 mm diameter
Internal insect
screens on vents
June 2014 EPA0335
Ventilation openings have an internally fitted screen to prevent
ingress of insects and other foreign matter
Requirement
met [Yes / No]
Evidence of compliance / Comment
27
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
Protection against
Magazine painted both internally and externally
corrosion
Is on a pad or footing
Unauthorised removal
Hold down bolts (15 mm diameter) or equivalent present
Hold down bolts in secure location and grouted
Concrete plinth
External security
Locks
External security must comprise:

a staple of 8 mm diameter high tensile steel and a hasp of 3
mm thick steel welded to the magazine or an equivalent
mechanism sized for a suitable padlock

hinge protectors and padlock guard of 5 mm thick steel
(shackle shield)
Fitted with:

a 6 lever ‘safe lock’ (e.g. mortice deadlock); or

a 5 lever padlock with hardened shackle and pad; and

a ‘restricted key’ system for pin-tumbler padlocks
Door / lid restraint
Door / lid fitted with a restraint device for securing in fully open
position
Electrical
Are electrical fittings and wiring present?
Compliance with AS/NZS 3000 for hazardous zones—

June 2014 EPA0335
is an electrical certificate held?
Requirement
met [Yes / No]
Evidence of compliance / Comment
28
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
Propellants,
black powder, or
pyrotechnics
A portable magazine used for the storage of propellant and black
powders and pyrotechnic substances and devices must—

be of sturdy and sparkproof construction

be constructed of wood or be wood-lined with no internal
exposed ferrous materials

have internal screws and nails countersunk, with the cavities
filled

have lockable and close-fitting doors or lids that overlap the
opening
Is the portable magazine used for storage of black powder?

June 2014 EPA0335
If Yes, are only nonferrous fittings used (e.g. for hinges, hasp
and staple)?
Requirement met
[Yes / No]
Evidence of compliance / Comment
29
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Relocatable magazines
Relocatable magazines include:
(i)
steel magazines;
(ii)
non-collapsible general-purpose freight containers that comply with AS/NZS 3711.4 and this Standard; and
(iii)
modular steel or concrete magazines.
Guidelines for the construction of relocatable magazines are given in of AS2187.1–1998:
 Appendix D, for steel magazines; and
 Appendix E, for converted freight containers.
Relocatable magazines for storing propellant, black powder, and pyrotechnic substances and devices of Class 1.3 or 1.4, compatibility groups C or G,
may be built to less stringent design requirements with respect to doors, locking mechanisms and external cladding than specified for other explosives.
If the magazine is intended for such use, ensure that it is provided with a sign permanently fixed to the lining bearing the words:
THIS MAGAZINE IS SUITABLE ONLY FOR THE STORAGE OF EXPLOSIVES WITH A CLASSIFICATION OF 1.3 OR 1.4, COMPATIBILITY GROUPS
C AND G.
Requirement
Check for
Construction
General
June 2014 EPA0335
Is the size of the magazine adequate to allow:

stable stacking heights for packages?

aisle(s) to permit access, stock rotation and visibility of
manufacturing dates? and

sufficient ventilation?
Requirement
met [Yes / No]
Evidence of compliance / Comment
30
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Outer case and
frame
Check for
Steel magazines

The outer case is fabricated from Grade 250 steel to
AS 3679.2, not less than 5 mm thick with all edges
continuously welded or folded as per AS/NZS 1554.1

The door frames are reinforced internally with either 75 mm ×
12 mm flat steel bar or a 64 mm × 64 mm × 10 mm steel angle
welded continuously around the whole opening

A weatherstrip of 12 mm wide × 3 mm thick steel bar is
welded continuously around the inside of the door opening

The case is securely welded to a frame of 76 mm × 38 mm
rolled steel channels or equivalent section, spaced to impart
sufficient rigidity to the outer casing and the inner box
[Note: Refer Figures D6(c) and 7 (doorframes) and Figures D3 and D4
(cases and frames) of AS2187.1–1998]
Converted freight containers

The cladding of the walls and roof is steel plate fabricated to
thickness not less than 5 mm, securely fixed by welding to the
existing walls and roof with all edges continuously welded

Walls and roof have an internal timber lining

The floor is galvanized steel plate not less than 3 mm thick,
securely attached but not welded onto the steel floor beams

Steel plate is covered by a timber floor
[Note: Refer Figure E6 of AS2187.1–1998]
June 2014 EPA0335
Requirement
met [Yes / No]
Evidence of compliance / Comment
31
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Weather shield
Check for
Weather shield is fitted above the door opening for all relocatable
magazines
Where practicable the weather shield is:

not more than 10 mm above door opening and either:

fabricated from steel plate of 3 mm thickness angled 45° from
the horizontal, welded continuously to the case to give a
horizontal projection over the door of not less than 40 mm,
and extending at least 60 mm beyond the door opening on
each side; or

formed by an extension of the roof plate; and

welding must comply with AS/NZS 1554.1
[Note: Modular construction with suitable internal bolted connections may
fulfil these requirements]
Inner lining
The inner lining has an internal surface free of iron or steel
Timber linings

timber is of close-jointed construction, strongly fastened at the
junction of the roof, floor, ceiling side and rear panels, and
rigidly spaced at least 75 mm from the outer case by the steel
frame

no timber is in contact with the outer steel case

timber is not less than:
(a) 19 mm, for tongue and groove hardwood
(b) 20 mm, for interior blockboard
(c) 12 mm, for interior plywood
June 2014 EPA0335
Requirement
met [Yes / No]
Evidence of compliance / Comment
32
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for

internally exposed nails and screws are either:
(a) non-ferrous metal; or
(b) galvanized or cadmium-plated steel, punched or
recessed and puttied over
Where an inner box is used as an inner lining the inner box door:

is not less than 12 mm plywood backed by a 50 mm × 25 mm
(nominal) timber frame

has a minimum lap of 12 mm over the outside of the inner box
opening at jambs and head and a 3 mm minimum clearance at
floor level

is set at least 12 mm above the top edge of the bottom
weatherstrip on the steel door opening

is hung on three non-ferrous hinges

is fitted with one or more brass barrel bolt catches with an
oversize socket secured with brass bolts and nuts

has steel fittings, provided they are not exposed to the interior
when the door is closed
[Note 1. An inner box with door is not mandatory]
[Note 2. Check for any copper and copper alloys in contact with aluminium –
these generate corrosion]
[Note 3. Check for an earthing strap to provide electrical continuity to
ground]
Inner lining
June 2014 EPA0335
Aluminium linings

aluminium is fixed to the magazine structure by aluminium
rivets

aluminium sheet is not less than:
Requirement
met [Yes / No]
Evidence of compliance / Comment
33
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
(a) 5.0 mm for flat sheet or 2.0 mm for extruded profiles for
wall sections to 600 mm above floor level; or
(b) 1.6 mm for flat sheet for upper wall and ceiling sheeting
Outer doors
Steel or concrete magazines
Doors:

are fabricated from minimum 10 mm steel plate [for
magazines constructed on or after 4 March 2013]; or

fabricated from 5 mm steel plate [for magazines constructed
before 4 March 2013]; and

are hung from a structural steel frame [see earlier
requirements: Outer case and frame – Steel magazines]

are built in to the masonry, concrete or steel structure
surrounding them
Door hinges are external lug and pin type, bronze bushed and
attached either by

dowelling and screwing; or

continuous welding
Hinge blocks and sockets are:

not less than 25 mm square bar for magazines of capacity up
to 500 kg, and

not less than 38 mm square bar for magazines of capacity
1000 kg and over
with a hole drilled and threaded in the side and through the bronze
bush of both upper and lower hinge blocks to take a grease nipple
Doors swing outwards easily through at least 150°. They close
parallel with the frame, finishing with a recess of at least 5 mm
June 2014 EPA0335
Requirement
met [Yes / No]
Evidence of compliance / Comment
34
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
below the face of the door frame when closed
Is a grease nipple provided?
Do the doors swing easily?
Are the doors warped or cracked?
Do they lock easily?
[Note: Refer Figure D1, D6 and E8 of AS2187.1–1998]
Outer doors
Converted freight containers
Where double doors are fitted:

one door is continuously welded shut and covered by
additional cladding; or

where both doors are to be used, appropriate locking
mechanisms are fitted to both doors; or

both doors are removed and one frame and door assembly is
fitted
Existing doors have:

additionally cladding of low-carbon steel plate not less than 5
mm thick, and

are reinforced with 64 mm × 64 mm × 10 mm steel angle
welded to the inside edge of the door on all sides
Door hinges are external lug and pin type, bronze bushed and
attached either by

dowelling and screwing; or

continuous welding
Where hinge blocks and sockets are:

June 2014 EPA0335
not less than 25 mm square bar for magazines of capacity up
Requirement
met [Yes / No]
Evidence of compliance / Comment
35
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
to 500 kg, and

not less than 38 mm square bar for magazines of capacity
1000 kg and over
with a hole drilled and threaded in the side and through the bronze
bush of both upper and lower hinge blocks to take a grease nipple;
or
Existing hinges in place, with the hinge pins protected from removal
when the door is closed
Exterior edges of the door and door jamb fitted with a welded lowcarbon steel angle so that when the door is closed, the gap between
them is as small as possible but not > 6 mm
Lifting lugs
Where required, there are four lifting lugs fabricated in accordance
with AS/NZS 3711.3 welded to the outer case
Lifting lugs positioned to allow magazine to be lifted with minimal
distortion or twisting
[Note: Refer Figures D1 and D2 of AS2187.1–1998]
Insulation
Non combustible insulating material is placed to fill the space
between the steel case and the inner box [on top, bottom and all
sides]
Vestibules
Is there a vestibule associated with the magazine?
Vestibule construction, linings, and other associated items meet
requirements as set out in this performance standard
Ventilation
General
Is ventilation system adequate to:

June 2014 EPA0335
avoid the build-up of hazardous or dangerous vapours or
fumes? and
Requirement
met [Yes / No]
Evidence of compliance / Comment
36
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for

minimise temperature cycling?
[Note: Refer Table F2, Figures D3 to D5, E2, E3, E5 and Figure C6 of
AS2187.1–1998]
Weather shields for
vent. openings
Side openings:

are shrouded externally with closed side weather shields
fabricated from 5 mm thick steel plate extending 25 mm below
the bottom of the vent

have a minimum open area in the horizontal plane of 375 mm
× 100 mm

are welded to the case; and

consist of 5 mm thick steel plate perforated with holes that
(a) do not occupy more than 45% of the gross area and
(b) are not larger than 25 mm diameter
Roof ventilation duct is:

steel channel 200 mm × 100 mm × 6 mm or equivalent

stitch welded across the top of the magazine to protect the
vertical steel vent pipe
[Note: Refer Figure D5 of AS2187.1–1998]
Internal insect
screens on vents
Ventilation openings have an internally fitted screen to prevent
ingress of insects and other foreign matter
Internal passages
to vent. openings
Side openings:
June 2014 EPA0335

are formed from 1.6 mm steel sheet fabricated into a box
section

are staggered to provide a minimum clear distance of 300 mm
between the inner and outer vents
Requirement
met [Yes / No]
Evidence of compliance / Comment
37
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for

are the same size as the outer vents

have two vertical timber blocks, one on each side of the inner
passages, with minimum dimensions of:
(a) for magazines of up to 100 kg design capacity, 400 mm
× 50 mm × 25 mm; or
(b) for magazines over 100 kg design capacity, 600 mm ×
50 mm × 25 mm; and

are fitted with a screen to prevent ingress of insects and other
foreign matter
Top openings into roof ventilation duct:

are vertical steel pipe, 100 mm diameter 3 mm thick, fully
welded to the top plate of the magazine

protrude not less than 25 mm above the bottom plate and
below the inner lining; and

are filled at the top of the vent with a screen to prevent ingress
of insects and other foreign matter
[Note: Refer Figure E11 and E12 of AS2187.1–1998]
Rotary type
ventilators
Is a rotary type vent installed?

Internal opening are covered with timber and fitted with ‘T’shaped metal duct formed from 1.6 mm thick steel or
aluminium sheet, having a closed base and screened side
openings; or

Rotary-type roof ventilator fitted to the top of an external
weather-shield channel
[Note: Refer Figure E12 of AS2187.1–1998]
June 2014 EPA0335
Requirement
met [Yes / No]
Evidence of compliance / Comment
38
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
Requirement
met [Yes / No]
Evidence of compliance / Comment
Locking devices
Sliding bolts and
bolt frame
Doors provided with steel sliding bolts on the opening side of
minimum size 55 mm × 10 mm:

for magazine capacities up to and including 200 kg, two bolts
fitted

for magazine capacities greater than 200 kg, three bolts fitted
Sliding bolts are:

welded to a steel angle frame; and

retained and guided by slots in 64 mm × 64 mm × 10 mm steel
angle welded continuously on both of its sides to the door, as
close as possible to the door edge and over its full height
The bolt frame is

operated by a peg-and-lever, socketed for a square-shank key

locked by a 6-lever lock screwed to a steel mounting plate
welded continuously to the inside face of the door. A cover of
minimum 10 mm square or 25 mm × 6 mm steel bar is over
and close to the rear of the lock and welded continuously to
the mounting plate or the inside face of the door
Key for the lock cannot be withdrawn unless sliding bolts fully
engaged and locked
An alternative anti-punch arrangement may be installed.
Fixed lugs

Is an alternative arrangement in place?

Does it give equivalent or improved level of protection?
Doors secured by steel fixed lugs of minimum dimensions 55 mm ×
10 mm:

June 2014 EPA0335
for magazine capacities up to and including 200 kg, two lugs
Number of sliding bolts?
39
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
fitted

for magazine capacities greater than 200 kg, three lugs fitted
Fixed lugs are welded to the door:

on the hinged side and close into slots that are in a single
length of 64 mm × 64 mm × 10 mm steel angle welded
continuously on both of its sides to the door; and

as close as possible to the door edge and over its full height
Distance from the centre of each lug or bolt to the adjacent
horizontal edge of the door is:

25% of the door height (where two fixed lugs or sliding bolts
are used); or

one sixth of the door height (where three fixed lugs or sliding
bolts are used)
[Note: Some discretion should be applied provided the lugs give effective
security. Record distances if different from above]
Lever-lock keyhole
The lever-lock keyhole through the door plate is accurately formed
with a snug fit to the shape of the key
The keyhole for the square-shank key is circular with minimum
clearance for the key
Tubular steel pipe extensions are welded to the door face around
entries for both keys
Double opening
doors
Does the magazine have double opening doors?
For double opening doors, the bolt frame of one door only is
provided with a lock and peg-and-lever operating mechanism,
where the:

June 2014 EPA0335
bolt frame opening mechanism of the second door is
accessible only when the first door (fitted with the lock) is
Requirement
met [Yes / No]
Evidence of compliance / Comment
40
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
open; and

opening mechanism on the second door is an over centre
pivot lock arrangement
[Note 1: Refer Figure 2.3.4 (double door securing mechanism), Figures D6
and E8 (locking devices), Figure D7 (alternative types of fixed lugs) and
Figures D6(a), D6(c) and E8 (bolt fixing and anti-punch arrangements) of
AS2187.1–1998]
[Note 2. An alternative locking arrangement for the door may be used if it
will give an equivalent, or an improved, level of protection]
Electrical
Are electrical fittings and wiring present?
Compliance with AS/NZS 3000 for hazardous zones—
Is an electrical certificate held?
Door restraint
Door fitted with a restraint device for securing in fully open position
Protection against
Magazine painted both internally and externally
corrosion
Is on a pad or footing
June 2014 EPA0335
Requirement
met [Yes / No]
Evidence of compliance / Comment
41
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Fixed or permanent (above ground) magazines
Requirement
Check for
Construction
Is the magazine designed for the appropriate loads as specified in
AS1170 (all Parts)?
Have the designs been certified by a competent engineer?
Floor
Floor must be of concrete
Walls
Constructed from

5 mm mild steel

double brick

concrete block

concrete or equivalent
With steel mesh enclosure of Grade 450 steel or better incorporated
in the structure of the concrete, block or brick walls

for double brick walls size F81 galvanized steel mesh must be
used and located within the cavity

for concrete block walls 10 mm diameter reinforcing bars must
be used at 200 mm centres vertically and between courses
horizontally to form a 200 mm square grid. The cavity in the
blocks must be filled with 25 MPa concrete

for reinforced concrete walls the minimum reinforcement must
be F81 mesh. Laps in the mesh must be 200 mm and
adjacent verticals must be joined by a 6 mm fillet weld 50 mm
long
When galvanized mesh or bars are used welds must be cleaned of
slag and treated with a suitable galvanizing paint
The security mesh wall must be secured to the reinforcing mesh in
the concrete floors and roof or ceiling by a lap weld as before
June 2014 EPA0335
Requirement
met [Yes / No]
Evidence of compliance / Comment
42
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Steel frames
Wall lining
Check for
Structural steel frames comply with AS1170 and AS/NZS 3679.2?

steel mesh security enclosure welded to the frames

surfaces suitably treated to protect against corrosion
Is a wall lining used?

Roof
is the material non-sparking (e.g. plywood, aluminium or a
suitable synthetic formulation)
Roof either metal sheeting or reinforced concrete
Non-combustible insulation provided under metal roofs and the roof
space well ventilated
Are eaves and guttering present?
[Note: They are not mandatory. Guttering should be avoided]
F81, Grade 450 security mesh included in the roof section, and
welded to the security mesh or reinforcing bars in the walls
Flashings installed. Are they present?
Ceilings
Are ceilings present? [They are not mandatory]
If present, are ceilings

timber or plywood; and

installed below the security mesh?
[Note: where the ceiling is insulated, it is not necessary to provide insulation
directly below the metal roof]
Dimensions
Dimensions of the magazine provide at least 2 m2 of internal floor
space for every tonne of explosives stored
Doors and
doorframes
The door frames are reinforced internally with either 75 mm × 12
mm flat steel bar or a 64 mm × 64 mm × 10 mm steel angle welded
continuously around the whole opening
June 2014 EPA0335
Requirement
met [Yes / No]
Evidence of compliance / Comment
43
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
A weatherstrip of 12 mm wide × 3 mm thick steel bar is welded
continuously around the inside of the door opening
Doors:

are fabricated from minimum 10 mm steel plate [for
magazines constructed on or after 4 March 2013]; or

fabricated from 5 mm steel plate [for magazines constructed
before 4 March 2013]; and

are hung from a structural steel frame [see above]

are built in to the masonry, concrete or steel structure
surrounding them
Door hinges are external lug and pin type, bronze bushed and
attached either by

dowelling and screwing; or

continuous welding
Hinge blocks and sockets are:

not less than 25 mm square bar for magazines of capacity up
to 500 kg, and

not less than 38 mm square bar for magazines of capacity
1000 kg and over
with a hole drilled and threaded in the side and through the bronze
bush of both upper and lower hinge blocks to take a grease nipple
Doors swing outwards easily through at least 150°. They close
parallel with the frame, finishing with a recess of at least 5 mm
below the face of the door frame when closed
Is a grease nipple provided?
Do the doors swing easily?
June 2014 EPA0335
Requirement
met [Yes / No]
Evidence of compliance / Comment
44
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
Requirement
met [Yes / No]
Evidence of compliance / Comment
Are the doors warped or cracked?
Do they lock easily?
[Note: Refer Figure D1, D6 and E8 of AS2187.1–1998]
Locking devices
Sliding bolts and
bolt frame
Doors provided with steel sliding bolts on the opening side of
minimum size 55 mm × 10 mm:

for magazine capacities up to and including 200 kg, two bolts
fitted

for magazine capacities greater than 200 kg, three bolts fitted
Sliding bolts are:

welded to a steel angle frame; and

retained and guided by slots in 64 mm × 64 mm × 10 mm steel
angle welded continuously on both of its sides to the door, as
close as possible to the door edge and over its full height
The bolt frame is

operated by a peg-and-lever, socketed for a square-shank key

locked by a 6-lever lock screwed to a steel mounting plate
welded continuously to the inside face of the door. A cover of
minimum 10 mm square or 25 mm × 6 mm steel bar is over
and close to the rear of the lock and welded continuously to
the mounting plate or the inside face of the door
Key for the lock cannot be withdrawn unless sliding bolts fully
engaged and locked
An alternative anti-punch arrangement may be installed.

June 2014 EPA0335
Is an alternative arrangement in place?
Number of sliding bolts?
45
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for

Fixed lugs
Does it give equivalent or improved level of protection?
Doors secured by steel fixed lugs of minimum dimensions 55 mm ×
10 mm:

for magazine capacities up to and including 200 kg, two lugs
fitted

for magazine capacities greater than 200 kg, three lugs fitted
Fixed lugs are welded to the door:

on the hinged side and close into slots that are in a single
length of 64 mm × 64 mm × 10 mm steel angle welded
continuously on both of its sides to the door; and

as close as possible to the door edge and over its full height
Distance from the centre of each lug or bolt to the adjacent
horizontal edge of the door is:

25% of the door height (where two fixed lugs or sliding bolts
are used); or

one sixth of the door height (where three fixed lugs or sliding
bolts are used).
[Note: Some discretion should be applied provided the lugs give effective
security. Record distances if different from above]
Lever-lock keyhole
The lever-lock keyhole through the door plate is accurately formed
with a snug fit to the shape of the key
The keyhole for the square-shank key is circular with minimum
clearance for the key
Tubular steel pipe extensions are welded to the door face around
entries for both keys
Double opening
doors
June 2014 EPA0335
Does the magazine have double opening doors?
For double opening doors, the bolt frame of one door only is
Requirement
met [Yes / No]
Evidence of compliance / Comment
46
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
provided with a lock and peg-and-lever operating mechanism,
where the:

bolt frame opening mechanism of the second door is
accessible only when the first door (fitted with the lock) is
open; and

opening mechanism on the second door is an over centre
pivot lock arrangement
[Note 1: Refer Figure 2.3.4 (double door securing mechanism), Figures D6
and E8 (locking devices), Figure D7 (alternative types of fixed lugs) and
Figures D6(a), D6(c) and E8 (bolt fixing and anti-punch arrangements) of
AS2187.1–1998]
[Note 2. An alternative locking arrangement for the door may be used if it
will give an equivalent, or an improved, level of protection]
Ventilation
General
Is ventilation system adequate to:

avoid the build-up of hazardous or dangerous vapours or
fumes; and

minimise temperature cycling
[Note: Refer Table F2, Figures D3 to D5, E2, E3, E5 and Figure C6 of
AS2187.1–1998]
Weather shields for
vent. openings
June 2014 EPA0335
Side openings:

are shrouded externally with closed side weather shields
fabricated from 5 mm thick steel plate extending 25 mm below
the bottom of the vent

have a minimum open area in the horizontal plane of 375 mm
× 100 mm

are welded to the case; and
Requirement
met [Yes / No]
Evidence of compliance / Comment
47
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for

consist of 5 mm thick steel plate perforated with holes that
(a) do not occupy more than 45% of the gross area and
(b) are not larger than 25 mm diameter
Roof ventilation duct is:

steel channel 200 mm × 100 mm × 6 mm or equivalent

stitch welded across the top of the magazine to protect the
vertical steel vent pipe
[Note: Refer Figure D5 of AS2187.1–1998]
Internal insect
screens on vents
Ventilation openings have an internally fitted screen to prevent
ingress of insects and other foreign matter
Internal passages
to vent. openings
Side openings:

are formed from 1.6 mm steel sheet fabricated into a box
section

are staggered to provide a minimum clear distance of 300 mm
between the inner and outer vents

are the same size as the outer vents

have two vertical timber blocks, one on each side of the inner
passages, with minimum dimensions of:
(a) for magazines of up to 100 kg design capacity, 400 mm
× 50 mm × 25 mm; or
(b) for magazines over 100 kg design capacity, 600 mm ×
50 mm × 25 mm; and

are fitted with a screen to prevent ingress of insects and other
foreign matter
Top openings into roof ventilation duct:

June 2014 EPA0335
are vertical steel pipe, 100 mm diameter 3 mm thick, fully
Requirement
met [Yes / No]
Evidence of compliance / Comment
48
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
welded to the top plate of the magazine

protrude not less than 25 mm above the bottom plate and
below the inner lining; and

are filled at the top of the vent with a screen to prevent ingress
of insects and other foreign matter
[Note: Refer Figure E11 and E12 of AS2187.1–1998]
Rotary type
ventilators
Is a rotary type vent installed?

Internal opening are covered with timber and fitted with ‘T’shaped metal duct formed from 1.6 mm thick steel or
aluminium sheet, having a closed base and screened side
openings; or

Rotary-type roof ventilator fitted to the top of an external
weather-shield channel
[Note: Refer Figure E12 of AS2187.1–1998]
Windows / skylights
Are windows present?

steel framed with glazing 6 mm minimum perspex or similar

5 mm hinged steel plate shutter with internal bolts fitted to
inside of each window, 50 mm larger than the window

steel bars, 19 mm diameter at 100 mm centres
Are skylights present?

protected by steel grid mesh, welded to the security mesh and
located between the skylight and the mesh

mesh clearance of at least 250 mm on all sides of the skylight
[Note: A 5 mm grid mesh is suitable for a skylight when laid over the
security mesh]
June 2014 EPA0335
Requirement
met [Yes / No]
Evidence of compliance / Comment
49
Performance standard for issuing a magazine (Class 1 explosives) test certificate
Requirement
Check for
Protection against
Steel magazine painted both internally and externally
corrosion
Is on a pad or footing to prevent corrosion / water ingress
Door restraint
Door fitted with a restraint device for securing in fully open position
Electrical
Are electrical fittings and wiring present?
Compliance with AS/NZS 3000 for hazardous zones—
Is an electrical certificate held?
June 2014 EPA0335
Requirement
met [Yes / No]
Evidence of compliance / Comment
Level 10, 215 Lambton Quay, Wellington 6140, New Zealand