ONTARIO
PROVINCIAL
STANDARD
SPECIFICATION
METRIC
OPSS 1854
NOVEMBER 2004
MATERIAL SPECIFICATION FOR
HIGH DENSITY POLYETHYLENE ADJUSTMENT UNITS FOR
MAINTENANCE HOLES, CATCH BASINS, DITCH INLETS, AND VALVE
CHAMBERS
TABLE OF CONTENTS
1854.01
SCOPE
1854.02
REFERENCES
1854.03
DEFINITIONS
1854.04
SUBMISSION AND DESIGN REQUIREMENTS - Not Used
1854.05
MATERIALS
1854.06
EQUIPMENT - Not Used
1854.07
PRODUCTION
1854.08
QUALITY ASSURANCE
1854.09
OWNER PURCHASE OF MATERIAL
APPENDICES
1854-A
Commentary
1854.01
SCOPE
This specification covers the material and performance requirements for high density polyethylene adjustment
units used for maintenance holes, catch basins, and valve chambers.
1854.01.01
Significance and Use of Appendices
Appendices are not a mandatory part of the specification unless invoked by the Owner.
Appendix 1854-A is a commentary appendix to provide designers with information on the use of the
specification in a Contract.
Page 1
Rev. Date: 11/2004 OPSS 1854
1854.02
REFERENCES
This specification refers to the following standards, specifications, or publications:
Canadian Standards Association
S6-00
Canadian Highway Bridge Design Code
ASTM International
D 543-95 (R2001)
D 1248-00a
1854.03
Standard Practices for Evaluating the Resistance of Plastics to Chemical Reagents
Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and
Cable
DEFINITIONS
Flat surface means not having more than 0.25 mm deviation lineally in 305 millimeters.
1854.04
SUBMISSIONS AND DESIGN REQUIREMENTS
1854.04.01
Design Requirements
Adjustment units shall meet the following requirements:
a) The adjustment unit shall meet and exceed the design load requirements of CAN/CSA S6, CL-625-ONT
Truck.
b) The adjustment units shall be able to withstand 1,000,000 plus full load cycles of 10 seconds or less
duration. Adjustment units must perform without failure to a minimum 150 percent of these load values.
c) There shall be no deformation or cracking of an adjustment unit installed that would compromise the
structural integrity or water tightness of the installation when it is subjected to the specified loads,
seasonal temperatures, and placement temperatures of hot mix asphalt.
d) Adjustment units shall not be adversely affected by exposure to salt, gasoline, antifreeze, or motor oil
when tested for resistance to chemical reagents.
e) The maximum allowable deviation from dishing or bowing as measured at the outer edge with the
adjustment unit turned top down on a known flat surface shall be 6 mm.
f)
The maximum allowable convoluting as measured around the outer edge with the adjustment unit turned
top down on a known flat surface shall be 6 mm.
g) For adjustment units using a web design, the maximum allowable bulging between webs as measured
around the largest outside diameter and the points where the outer wall intersects the web sections shall
be 3 mm.
h) The thickness of the adjustment unit shall be within 3 mm of manufacturer’s stated dimension. All other
dimensions shall be within 5 mm of the manufacturer’s stated dimension. Except for sloped, shim, or
wedge units, the deviation from a plane parallel to theoretical surface shall not be greater than 1 in 500.
i)
The appearance of the adjustment unit shall be such that it shall have no voided areas, cracks,
separations, or protrusions. Ripples or sags on vertical walls shall not cover more than 10 percent of the
surface area. Colour of the adjustment unit shall be consistent.
Page 2
Rev. Date: 11/2004 OPSS 1854
1854.05
MATERIALS
1854.05.01
Adjustment Unit
Adjustment units shall be manufactured from injection moulding material and shall be able to be recycled as a
high density polyethylene product. Compression deformation and compression set testing shall meet the
requirements of Table 1.
The injection moulding material shall be either recycled or virgin high density polyethylene plastic or a
combination of both. The properties of the injection moulding material shall be according to ASTM D 1248,
Type III, Class B, Category 3.
1854.07
PRODUCTION
1854.07.01
General
An adjustment unit shall be manufactured from injection molding material using production type injection
molding tooling and manufacturing practices consistent with current technology and the type of injection
molding machine being used.
All rough edges shall be trimmed prior to shipping.
Adjustment units failing testing will not be reground and recycled if failure is a result of material problems.
1854.07.02
Markings
Each adjustment unit shall be clearly marked on the inside or top surface with the following information:
a) Manufacturer’s name.
b) Product trade name or catalogue number, if applicable.
c) Location of manufacture.
d) Date of manufacture, including month and year.
e) Dimensions of the adjustment units including:
i. thickness
ii. inside dimensions
iii. outside dimensions
f)
If top and bottom surfaces are different, which side is to be installed upwards.
1854.07.03
Testing and Inspection
1854.07.03.01
General
Testing shall be conducted on production run units not less than 24 hours old and not more than 60 days old.
For each production run the tests for compression deformation and compression set, shall occur at a minimum
rate of once every 250 adjustment units with first test conducted within the first 25 adjustment units of the
production run.
Page 3
Rev. Date: 11/2004 OPSS 1854
For each production run the tests to confirm dimensions, flatness, and to ensure consistent appearance shall
occur at a minimum rate of once every 500 adjustment units with the first test being conducted between the
5th and 10th adjustment unit.
1854.07.03.02
Compression Deformation and Compression Set
1854.07.03.02.01
Specimens
A minimum of 9 test specimens shall be cut from each adjustment unit selected for testing. These specimens
are to be divided into 3 specimens for each of the 3 temperature groupings. The same samples for each
temperature grouping shall be used for the compression deformation and compression set testing. For
adjustment units using a web design, each specimen shall be cut as close to opposing sides of adjacent webs
as possible without removing mass from those webs and shall be the full thickness of the adjustment unit. The
top and bottom surfaces shall not be larger than the plates of the compression equipment.
1854.07.03.02.02
Testing Procedure
Specimens shall be tested for initial compression deformation, final compression deformation, and
compression set. Three samples shall be tested for each of the 3 temperature groupings; -20°C, +23°C, and
+30°C.
The specimens must be maintained at the specified test temperatures for a minimum of 2 hours immediately
prior to the test period.
1854.07.03.02.02.01
Initial Compression Deformation
The initial compression deformation for each specimen shall be tested in the following manner:
a) The dimensions of each specimen shall be recorded to the nearest 0.02 mm prior to being subjected to
any testing.
b) Place the specimen in the compression equipment, using extreme care to place it exactly in the centre
between the plates to avoid tilting.
c) Apply an initial constant load to achieve 0.05 MPa stress to the specimen. Immediately determine the
thickness of the specimen by measuring the distance between the top and bottom plates. This value will
represent the initial thickness of the specimen prior to compression.
d) Over a period of 30 seconds or less, apply and maintain a constant load to achieve 1 MPa stress to the
specimen.
e) Immediately after the required load has been achieved, determine the initial compression deformation
thickness of the specimen by measuring the distance between the top and bottom plates and calculate the
initial compression deformation as follows:
Cd1 = D1 - D2
Where:
Cd1 = initial compression deformation
D1 = initial thickness, and
D2 = initial compression deformation thickness
Page 4
Rev. Date: 11/2004 OPSS 1854
1854.07.03.02.02.02
Final Compression Deformation
The final compression deformation for each specimen shall be tested in the following manner:
a) Maintain the load of 1 MPa for a period of 30 minutes.
b) At the end of the 30 minute period, determine the final compression deformation thickness of the
specimen by measuring the distance between the top and bottom plates and calculate the final
compression deformation as follows:
Cd2 = D1 - D3
Where:
Cd2 = final compression deformation
D1 = initial thickness
D3 = final compression deformation thickness
1854.07.03.02.02.03
Compression Set
The maximum compression set for each specimen shall be tested in the following manner:
a) Remove the load on the specimen and allow it to rest undisturbed for a period of 30 minutes.
b) At the end of the 30-minute period, apply a constant load to achieve 0.05 MPa stress to the specimen.
Immediately determine the compression set thickness of the specimen by measuring the distance
between the top and bottom plates and calculate compression set as follows:
C s = D 1 - D4
Where:
Cs = compression set
D1 = initial thickness, and
D4 = compression set thickness
1854.07.03.03
Resistance to Chemical Reagents
Testing for resistance to chemical reagents shall be according to ASTM D 543, Practice A.
1854.07.03.04
Dimensions
Adjustment unit shrinkage must be stabilized prior to testing for dimensions. Dimensions shall be verified by
checking the size against a product of verified size and measuring the height with vernier calipers.
Dimensions must be verified against adjustment unit drawings.
1854.07.03.05
Flatness
Flatness of the adjustment unit shall be verified using:
a) A go-no-go gauge to determine amount of bowing, dishing, or convoluting.
b) A go-no-go gauge and radius gauge to determine amount of bulging between the webs on the outside
wall of the adjustment unit.
Page 5
Rev. Date: 11/2004 OPSS 1854
1854.07.03.06
Appearance
The adjustment unit shall be inspected visually on an ongoing basis for voids, cracking, protrusions, ripples, or
sags on vertical walls and colour.
1854.08
QUALITY ASSURANCE
1854.08.01
Certificate
Suppliers shall provide a certificate upon request to indicate that the product was produced and tested
according to the appropriate specification requirements.
1854.08.02
Inspection and Testing
The Owner reserves the right to make inspections and tests, and at such times as the Owner may consider
necessary to ensure that the materials supplied are in accordance with this specification.
All materials failing to comply with the requirements of this specification shall be rejected.
1854.09
OWNER PURCHASE OF MATERIAL
For measurement purposes, a count shall be made of the high density polyethylene adjustment units delivered
and accepted.
Payment at the price specified in the purchasing order shall be for the supply and delivery of the high density
polyethylene adjustment units to the destination at the time specified.
The cost of all testing, except that performed in the Owner’s laboratory, shall be included in the price.
Page 6
Rev. Date: 11/2004 OPSS 1854
TABLE 1
MAXIMUM ALLOWABLE COMPRESSION DEFORMATION AND COMPRESSION SET
FOR A SINGLE 50 mm THICK ADJUSTMENT UNIT
Temperature of
Adjustment Unit
°C
Initial Compression
Deformation
%
Final Compression
Deformation
%
Compression Set
%
30
3.3
7.4
1.3
23
1.9
3.0
0.8
-20
1.1
0.8
0.5
Page 7
Rev. Date: 11/2004 OPSS 1854
Appendix 1854-A, Commentary for OPSS 1854, November 2004
Note:
This appendix does not form part of the standard specification. It is intended to provide
information to the designer on the use of this specification in a Contract.
Designer Action/Considerations
The designer should ensure that the Ontario Provincial Standards General Conditions of Contract and the 100
Series General Specifications are included in the Contract Documents.
Related Ontario Provincial Standard Drawings
OPSD 704.011
Page 8
High Density Polyethylene Adjustment Units for Maintenance Holes, Catch Basins, and
Valve Chambers
Rev. Date: 11/2004 OPSS 1854