DNV SERVICE SPECIFICATIONS, STANDARDS AND
RECOMMENDED PRACTICES
Summary of Changes and
Current Document Status
OCTOBER 2013
DET NORSKE VERITAS AS
FOREWORD
DNV is a global provider of knowledge for managing risk. Today, safe and responsible business conduct is both a license
to operate and a competitive advantage. Our core competence is to identify, assess, and advise on risk management. From
our leading position in certification, classification, verification, and training, we develop and apply standards and best
practices. This helps our customers safely and responsibly improve their business performance. DNV is an independent
organisation with dedicated risk professionals in more than 100 countries, with the purpose of safeguarding life, property
and the environment.
DNV service documents consist of among others the following types of documents:
— Service Specifications. Procedural requirements.
— Standards. Technical requirements.
— Recommended Practices. Guidance.
The Standards and Recommended Practices are offered within the following areas:
A) Qualification, Quality and Safety Methodology
B) Materials Technology
C) Structures
D) Systems
E) Special Facilities
F) Pipelines and Risers
G) Asset Operation
H) Marine Operations
J) Cleaner Energy
O) Subsea Systems
U) Unconventional Oil & Gas
© Det Norske Veritas AS October 2013
Any comments may be sent by e-mail to [email protected]
This service document has been prepared based on available knowledge, technology and/or information at the time of issuance of this document, and is believed to reflect the best of
contemporary technology. The use of this document by others than DNV is at the user's sole risk. DNV does not accept any liability or responsibility for loss or damages resulting from
any use of this document.
Summary of Changes and Current Document Status, October 2013
Contents – Page 3
CONTENTS
Sec. 1
General ................................................................................................................................................ 4
Sec. 2
Current Service Specifications, Standards and Recommended Practices .................................... 5
Sec. 3
Summary of Changes ......................................................................................................................... 9
1
Changes to DNV Service Specifications ........................................................................................................ 9
2
Changes to DNV Standards .......................................................................................................................... 13
3
Changes to DNV Recommended Practices .................................................................................................. 27
DET NORSKE VERITAS AS
Summary of Changes and Current Document Status, October 2013
Sec.1 General – Page 4
SECTION 1 GENERAL
As of October 2010 all DNV service documents are primarily published electronically and they are made
available for free as pdf files through http://www.dnv.com. The electronic pdf versions of the documents found
through the same site are the officially binding versions.
Readers of documents are encouraged to regularly check for updates in order to ensure that they hold the
current updated versions.
Updating Scheme
These documents are published throughout the year except DNV Offshore Service Specifications and Offshore
Standards which are normally published twice yearly, in April and in October.
If a document has been updated, the document will normally be given a new edition date.
The corresponding Adobe PDF file will be made available through http://www.dnv.com and the date of the column
“A” of Table 2-1 in Sec.2 will be updated.
If there is a need for amendments to the document; i.e. editorial and clarification corrections only, the electronic file
will be updated, but the edition date will be retained. However, a new Adobe PDF file will be generated and made
available through http://www.dnv.com. The date of the PDF file will appear in column “B” of Table 2-1 in Sec.2.
The changes will be described on page 3 of each document. Historic changes are to be found at the end of each
document as from July 2013.
DET NORSKE VERITAS AS
Summary of Changes and Current Document Status, October 2013
Sec.2 Current Service Specifications, Standards and Recommended Practices – Page 5
SECTION 2 CURRENT SERVICE SPECIFICATIONS, STANDARDS AND
RECOMMENDED PRACTICES
Table 2-1 Current Documents
Documents
A
Current
Edition
B
Amendments;
i.e. editorial
corrections and
clarifications
only
2012-07
2010-10
2010-10
2012-12
2012-06
2012-01
–
2012-04
2012-04
–
2013-07
2013-02
2013-10
–
2012-04
–
2012-04
–
2012-04
–
2008-10
2011-10
2013-10
2011-04
2004-04
2000-10
2010-10
2006-10
2010-10
2004-06
2004-06
2010-10
2008-10
2009-04
2012-06
–
2011-10
2012-04
2012-04
2012-04
2012-04
2011-10
2012-04
2012-04
2012-04
2012-04
2011-10
2012-07
–
2010-10
2010-11
2013-10
2013-10
2012-10
2011-04
2012-10
2012-10
2012-04
2011-04
–
–
–
–
–
–
–
–
2012-04
–
2012-10
2013-10
–
–
Service Specifications
DNV-DSS-105
DNV-DSS-314
DNV-DSS-315
DNV-DSS-401
DNV-DSS-402
DNV-DSS-904
Rules for Classification of Diving Systems
Verification of Hydrocarbon Refining and Petrochemical Facilities
Verification of Onshore LNG and Gas Facilities
Technology Qualification Management
Qualification Management for Geological Storage of CO2
Type Certification of Wind Turbines
Offshore Service Specifications
DNV-OSS-101 Rules for Classification of Offshore Drilling and Support Units
DNV-OSS-102 Rules for Classification of Floating Production, Storage and Loading
Units
DNV-OSS-103 Rules for Classification of Floating LNG/LPG Production, Storage
and Loading Units
DNV-OSS-104 Rules for Classification of Self-Elevating Units
DNV-OSS-121 Classification Based on Performance Criteria Determined from Risk
Assessment Methodology
DNV-OSS-201 Verification for Compliance with Norwegian Shelf Regulations
DNV-OSS-202 Verification for Compliance with UK Shelf Regulations
DNV-OSS-300 Risk Based Verification
DNV-OSS-301 Certification and Verification of Pipelines
DNV-OSS-302 Offshore Riser Systems
DNV-OSS-304 Risk Based Verification of Offshore Structures
DNV-OSS-305 Rules for Certification and Verification of Diving Systems
DNV-OSS-306 Verification of Subsea Facilities
DNV-OSS-307 Verification of Process Facilities
DNV-OSS-308 Verification of Lifting Appliances for the Oil and Gas Industry
DNV-OSS-312 Certification of Tidal and Wave Energy Converters
DNV-OSS-313 Pipe Mill and Coating Yard - Qualification
DNV-OSS-901 Project Certification of Offshore Wind Farms
Standards
DNV-DS-E403 Standard for Surface Diving Systems
DNV-DS-J102 Design and Manufacture of Wind Turbine Blades, Offshore and
Onshore Wind Turbines
Offshore Standards
DNV-OS-A101
DNV-OS-A201
DNV-OS-B101
DNV-OS-C101
DNV-OS-C102
DNV-OS-C103
DNV-OS-C104
DNV-OS-C105
DNV-OS-C106
Safety Principles and Arrangements
Winterization for Cold Climate Operations (Tentative)
Metallic Materials
Design of Offshore Steel Structures, General (LRFD Method)
Structural Design of Offshore Ships
Structural Design of Column Stabilised Units (LRFD Method)
Structural Design of Self-Elevating Units (LRFD Method)
Structural Design of TLPs (LRFD Method)
Structural Design of Deep Draught Floating Units/Spars (LRFD and
WSD Method)
DNV-OS-C201 Structural Design of Offshore Units (WSD Method)
DNV-OS-C301 Stability and Watertight Integrity
DET NORSKE VERITAS AS
Summary of Changes and Current Document Status, October 2013
Sec.2 Current Service Specifications, Standards and Recommended Practices – Page 6
Table 2-1 Current Documents (Continued)
Documents
DNV-OS-C401
DNV-OS-C501
DNV-OS-C502
DNV-OS-C503
DNV-OS-D101
DNV-OS-D201
DNV-OS-D202
DNV-OS-D203
DNV-OS-D301
DNV-OS-E101
DNV-OS-E201
DNV-OS-E301
DNV-OS-E302
DNV-OS-E303
DNV-OS-E304
DNV-OS-E401
DNV-OS-E402
DNV-OS-E403
DNV-OS-E406
DNV-OS-E407
DNV-OS-F101
DNV-OS-F201
DNV-OS-H101
DNV-OS-H102
DNV-OS-H201
DNV-OS-H203
DNV-OS-J101
DNV-OS-J103
DNV-OS-J201
DNV-OS-J301
Fabrication and Testing of Offshore Structures
Composite Components
Offshore Concrete Structures
Concrete LNG Terminal Structures and Containment Systems
Marine and Machinery Systems and Equipment
Electrical Installations
Automation, Safety and Telecommunication Systems
Integrated Software Dependent System (ISDS)
Fire Protection
Drilling Plant
Oil and Gas Processing Systems
Position Mooring
Offshore Mooring Chain
Offshore Fibre Ropes
Offshore Mooring Steel Wire Ropes
Helicopter Decks
Offshore Standard for Diving Systems
Offshore Loading Buoys
Design of Free Fall Lifeboats
Underwater Deployment & Recovery Systems
Submarine Pipeline Systems
Dynamic Risers
Marine Operations, General
Marine Operations, Design and Fabrication
Load Transfer Operations
Transit and Positioning of Offshore Units
Design of Offshore Wind Turbine Structures
Design of Floating Wind Turbine Structures
Offshore Substations for Wind Farms
Wind Turbine Installation Units
A
Current
Edition
2013-04
2010-10
2012-09
2010-10
2013-10
2013-10
2013-10
2012-12
2013-10
2013-10
2013-04
2013-10
2013-10
2013-02
2013-10
2012-04
2010-10
2008-10
2010-04
2012-10
2013-10
2010-10
2011-10
2012-01
2012-04
2012-02
2013-01
2013-06
2009-10
2013-04
B
Amendments;
i.e. editorial
corrections and
clarifications
only
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2013-02
–
–
2013-07
Recommended Practices
DNV-RP-A201
DNV-RP-A203
DNV-RP-A204
DNV-RP-A205
DNV-RP-B101
DNV-RP-B401
DNV-RP-C101
DNV-RP-C102
DNV-RP-C103
DNV-RP-C104
DNV-RP-C201
DNV-RP-C202
DNV-RP-C203
DNV-RP-C204
DNV-RP-C205
DNV-RP-C206
DNV-RP-C207
DNV-RP-C208
Plan Approval Documentation Types – Definitions
Technology Qualification
Quality Survey Plan (QSP) for Offshore Class New-building Surveys
Offshore Classification Projects - Testing and Commissioning
Corrosion Protection of Floating Production and Storage Units
Cathodic Protection Design
Allowable Thickness Diminution for Hull Structure of Offshore Ships
Structural Design of Offshore Ships
Column-Stabilised Units
Self-elevating Units
Buckling Strength of Plated Structures
Buckling Strength of Shells
Fatigue Design of Offshore Steel Structures
Design against Accidental Loads
Environmental Conditions and Environmental Loads
Fatigue Methodology of Offshore Ships
Statistical Representation of Soil Data
Determination of Structural Capacity by Non-linear FE Analysis
Methods
DET NORSKE VERITAS AS
2012-04
2013-07
2011-09
2013-10
2007-04
2010-10
2007-04
2002-02
2012-04
2012-11
2010-10
2013-01
2012-10
2010-10
2010-10
2012-10
2012-01
–
–
–
–
–
2011-04
–
–
–
–
–
–
–
–
–
–
–
2013-07
–
Summary of Changes and Current Document Status, October 2013
Sec.2 Current Service Specifications, Standards and Recommended Practices – Page 7
Table 2-1 Current Documents (Continued)
Documents
DNV-RP-C301 Design, Fabrication, Operation and Qualification of Bonded Repair of
Steel Structures
DNV-RP-C302 Risk Based Corrosion Management
DNV-RP-D101 Structural Analysis of Piping Systems
DNV-RP-D102 Failure Mode and Effect Analysis (FMEA) of Redundant Systems
DNV-RP-D201 Integrated Software Dependent Systems
DNV-RP-D202 Witnessing of Low Sulphur Fuel Changeover and Operations
DNV-RP-E101 Recertification of Well Control Equipment for the Norwegian
Continental Shelf
DNV-RP-E102 Recertification of Blowout Preventers and Well Control Equipment
for the US Outer Continental Shelf
DNV-RP-E301 Design and Installation of Fluke Anchors in Clay
DNV-RP-E302 Design and Installation of Plate Anchors in Clay
DNV-RP-E303 Geotechnical Design and Installation of Suction Anchors in Clay
DNV-RP-E304 Damage Assessment of Fibre Ropes for Offshore Mooring
DNV-RP-E306 Dynamic Positioning Vessel Design Philosophy Guidelines
DNV-RP-E307 Dynamic Positioning Systems - Operation Guidance
DNV-RP-E401 Survey of Diving Systems
DNV-RP-E402 Naval Rescue Submersibles
DNV-RP-E403 Hyperbaric Evacuation Systems
DNV-RP-F101 Corroded Pipelines
DNV-RP-F102 Pipeline Field Joint Coating and Field Repair of Linepipe Coating
DNV-RP-F103 Cathodic Protection of Submarine Pipelines by Galvanic Anodes
DNV-RP-F105 Free Spanning Pipelines
DNV-RP-F106 Factory Applied External Pipeline Coatings for Corrosion Control
DNV-RP-F107 Risk Assessment of Pipeline Protection
DNV-RP-F108 Fracture Control for Pipeline Installation Methods Introducing Cyclic
Plastic Strain
DNV-RP-F109 On-Bottom Stability Design of Submarine Pipelines
DNV-RP-F110 Global Buckling of Submarine Pipelines Structural Design due to
High Temperature/High Pressure
DNV-RP-F111 Interference Between Trawl Gear and Pipelines
DNV-RP-F112 Design of Duplex Stainless Steel Subsea Equipment Exposed to
Cathodic Protection
DNV-RP-F113 Pipeline Subsea Repair
DNV-RP-F116 Integrity Management of Submarine Pipeline Systems
DNV-RP-F118 Pipe Girth Weld AUT System Qualification and Project Specific
Procedure Validation
DNV-RP-F201 Design of Titanium Risers
DNV-RP-F202 Composite Risers
DNV-RP-F203 Riser Interference
DNV-RP-F204 Riser Fatigue
DNV-RP-F205 Global Performance Analysis of Deepwater Floating Structures
DNV-RP-F206 Riser Integrity Management
DNV-RP-F301 Subsea Separator Structural Design
DNV-RP-F302 Selection and Use of Subsea Leak Detection Systems
DNV-RP-F401 Electrical Power Cables in Subsea Applications
DNV-RP-G101 Risk Based Inspection of Offshore Topsides Static Mechanical
Equipment
DNV-RP-G103 Non-intrusive Inspection
DNV-RP-H101 Risk Management in Marine - and Subsea Operations
DET NORSKE VERITAS AS
A
Current
Edition
B
Amendments;
i.e. editorial
corrections and
clarifications
only
2012-04
–
2012-04
2008-10
2012-01
2009-10
2013-10
–
–
–
–
–
2012-01
–
2012-01
–
2012-05
2002-12
2005-10
2005-04
2012-09
2011-01
2007-04
2010-10
2010-10
2010-10
2011-05
2010-10
2006-02
2011-05
2010-10
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2006-01
–
2010-10
2011-11
2007-10
–
2010-10
–
2008-10
–
2007-10
2009-10
–
–
2010-10
–
2002-10
2010-10
2009-04
2010-10
2010-10
2008-04
2007-04
2010-04
2012-02
–
–
–
–
–
–
–
–
–
2010-10
–
2011-01
2003-01
–
–
Summary of Changes and Current Document Status, October 2013
Sec.2 Current Service Specifications, Standards and Recommended Practices – Page 8
Table 2-1 Current Documents (Continued)
Documents
DNV-RP-H102 Marine operations during Removal of Offshore Installations
DNV-RP-H103 Modelling and Analysis of Marine Operations
DNV-RP-H104 Ballast, Stability, and Watertight Integrity -Planning and Operating
Guidance
DNV-RP-J101 Use of Remote Sensing for Wind Energy Assessments
DNV-RP-J201 Qualification Procedures for CO2 Capture Technology
DNV-RP-J202 Design and Operation of CO2 Pipelines
DNV-RP-J203 Geological Storage of Carbon Dioxide
DNV-RP-O401 Safety and Reliability of Subsea Systems
DNV-RP-O501 Erosive Wear in Piping Systems
DNV-RP-U301 Risk Management of Shale Gas Developments and Operations
DET NORSKE VERITAS AS
A
Current
Edition
2004-04
2011-04
B
Amendments;
i.e. editorial
corrections and
clarifications
only
–
2012-12
2011-09
–
2011-04
2010-04
2010-04
2012-04
1985-04
2007-11
2013-01
2011-11
–
–
2013-07
–
2011-01
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 9
SECTION 3 SUMMARY OF CHANGES
1 Changes to DNV Service Specifications
Table 3-1 DNV Service Specifications
Document
number
DNV-OSS-101
October 2013
Document title
Changes
Rules for Classification of
General
Offshore Drilling and Support
Specific for this edition
Units
Significant changes have been highlighted throughout the document.
For clarity, the following changes have not been highlighted:
— content based on existing requirements from reference
documents
— interpretations based on old rule requirements
— editorial restructuring and moves.
— The structure of this document has been converted to decimal
numbering. Older references to this document may normally be
interpreted by analogy to this example:
— “DNV-OSS-101 Ch.2 Sec.3 D506” is now “DNV-OSS-101
Ch.2 Sec.3 [4.5.6]”.
— The content has been balanced by describing survey
requirements applicable for all units, followed by vessel type
specific requirements for all periodical surveys and applicable
areas (typically with regard to hull and equipment).
— Periodical survey requirements have been aligned with the Rules
for Classification of Ships (Rules for Ships).
— Gas turbine inspection requirements have been covered.
— The position/ use of DNV-OSS-101 with regard to DNV-OSS104 has been clarified.
— Service unit survey requirements have been clarified and
focused, among others by including specific sub-section on
scope.
— A new App.B on mooring equipment acceptance standard
guidance, originally placed inside the main text, has been
included.
— More extensive descriptions with regard to our follow up on
ageing units have been included.
— Descriptions for alternative survey arrangements have been
updated.
Ch.1 General
— Definition of EU Mutual Recognition Type Approval Certificate
has been included.
Ch.1 Sec.3 Classification scope and notations
— The overview of class notations in [2] has been updated.
Ch.2 General
— Scope of classification with regard to structural design has been
clarified in Sec.2 [3] and Sec.1 [4].
Ch.3 General
— The text has been restructured by:
1) Restructuring content of Sec.2 and previous Sec.4 A.
2) Deleting previous Sec.3 on alternative survey arrangements
and service suppliers and moving the content to respectively
Sec.7 and Sec.8.
3) Separating Miscellaneous main class surveys from Sec.3.
Ch.3 Sec.1 General provisions
— Updated overview table of periodical surveys.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 10
DNV-OSS-101
(continued)
October 2013
Rules for Classification of
Ch.3 Sec.2 General requirements for structure and machinery
Offshore Drilling and Support surveys
Units
— Aligned with relevant description of Rules for Ships.
(continued)
— Reference to RP for bonded patch repairs.
Ch.3 Sec.3 (previous Sec.4) Periodical survey extent for main
class
— [1] General:
— Updated IIP scope table.
— [2] Annual survey – main class:
— Content has been rewritten based on applicable Rules for
Ships and IACS.
— The text has been restructured as described above.
— [3] Intermediate survey:
— Content has been rewritten based on applicable Rules for
Ships and IACS.
— The text has been restructured as described above.
— Specific requirements for units > 10 years have been added.
— [4] Renewal survey, structure and equipment:
— Content has been rewritten based on applicable Rules for
Ships and IACS.
— The text has been restructured as described above.
— Thickness measurement tables for different vessel types
have been included.
— Special, primary and secondary areas for inspection for
different vessel types have been listed.
— Tail shaft sealing inspection for non-self-propelled units has
been included.
— [5] Renewal survey, machinery and safety systems:
— Content has been rewritten based on applicable Rules for
Ships and IACS.
— The text has been restructured as described above.
Ch.3 Sec.4 Miscellaneous main class surveys
— The text has been cleaned up by to a larger degree referring to
relevant Rules for Ships.
Ch.3 Sec.5 Periodical survey extent for additional service
notations
— Specific survey requirements for the different service notations
have been updated.
— Scope for each service notation has been clarified.
— Wind Turbine Installation units and Offshore Support units have
been included.
Ch.3 Sec.6 Optional class notation surveys
— Several requirements related to the DRILL notation have been
updated.
— DEICE has been removed.
— WINTERIZATION and ISDS requirements have been included.
— BWM references have been completed
— Several notations have been updated by in a large degree
referring to the Rules for Ships.
Ch.3 Sec.7 Alternative survey arrangements
— Alternative survey requirements for drilling equipment have
been described.
Ch.3 Sec.8 Surveys performed by approved companies
— This new section contains existing requirements on service
suppliers previously found in Sec.3.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 11
DNV-OSS-201
October 2013
Verification for Compliance
with Norwegian Shelf
Regulations
General
— The structure of this document has been converted to decimal
numbering. Older references to this document may normally be
interpreted by analogy to this example:
— “DNV-OSS-101” Ch.2 Sec.3 D506 is now “DNV-OSS-101
Ch.2 Sec.3 [4.5.6].”
— General updating of contents to correctly reflect governing
legislation of PSA, NMA and NOROG/NSA guidelines.
— Implementation letter from letters from the Petroleum Safety
Authority Norway (PSA) to Class Societies 2012-06-26 about
additional text to the N-notation.
Ch.1 Sec.1 Introduction
— Updated definition of AoC in [2.2].
— Updated reference and abbreviation tables in [3.1] and [4.1].
Ch.1 Sec.2 Verification Principles and Class Notations
— Updated regulation references in [1.2].
Ch.2 Sec.2 Drilling Unit (N)
— Class notation ES (Enhanced Systems) is added as a
prerequisite for Drilling Unit (N) in [1.1.1].
— Verification basis for Drilling Unit (N) has been updated in
Table 2-1.
— Additional technical requirements stipulated by PSA in letter to
Class Societies 2012-06-26 have been added in [2.2].
Ch.2. Sec.3 Production and/or Storage Unit (N)
— Verification basis for Production Unit (N) in Table 3-1 has
been significantly updated to reflect latest PSA Facility
regulations guidance on limitations on use of maritime
regulations for mobile facilities that are production facilities
— Additional technical requirements stipulated by PSA in letter to
Class Societies 2012-06-26 have been added in [2.2].
Ch.2 Sec.4 Storage Unit (N)
— New section introduced to specifically cover Storage Unit
(N). This was previously combined with Production Unit (N).
Ch.2 Sec.5 Well Intervention Unit (N)
— Class notation ES (Enhanced Systems) is added as a prerequisite
for Well Intervention Unit (N) in [1.1.1]
— Verification basis for Well Intervention Unit (N) has been
updated in Table 5-1.
— Additional technical requirements stipulated by PSA in letter to
Class Societies 2012-06-26 have been added in [2.2].
Ch.2 Sec.6 Accommodation Unit (N)
— Verification basis for Well Intervention Unit (N) has been
updated in Table 6-1.
— Additional technical requirements stipulated by PSA in letter to
Class Societies 2012-06-26 have been added in [2.2].
Ch.2 Sec.7 DRILL(N)
— Verification basis for DRILL (N) has been updated in Table 7-1.
Ch.2 Sec.8 PROD(N)
— Verification basis for PROD (N) has been updated in Table 8-1.
Ch.2 Sec.9 WELL(N)
— Verification basis for WELL (N) has been updated in Table 9-1.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 12
DNV-OSS-201
(continued)
October 2013
Verification for Compliance
with Norwegian Shelf
Regulations
(continued)
Ch.2 Sec.11 CRANE(N)
— NORSOK R-002 has been added in [2.2.1] as verification basis
for CRANE(N) in line with latest amendment of PSA
Regulations.
Ch.3 Sec.1 General Provisions for Periodical Surveys
— New guidance note on evaluation of rule changes introduced in
[2.1.1].
App.A Special Considerations for Ageing Offshore Units
(Informative)
— New informative annex added to inform about PSA's
requirements to documentation of ageing units (defined as 19
calendar years).
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 13
2 Changes to DNV Standards
Table 3-2 DNV Standards
Document
number
DNV-OS-A101
October 2013
Document title
Safety Principles and
Arrangements
Changes
General
The document has been updated to be in accordance with the new
principles for DNV Offshore Standards for Classification, including:
— This document has been split into three chapters of which Ch.2
contains technical requirements. In addition the structure has
been converted to decimal numbering. Older references to this
document may normally be interpreted by analogy to this
example:
— “DNV-OSS-101 Ch.2 Sec.3 D506” is now “DNV-OSS-101
Ch.2 Sec.3 [4.5.6]”.
— Interpretations have been added.
— The voluntary ES notation has been defined.
— Alignment with IACS, MODU code and other relevant
international standards.
— Changed sequence of service unit sections to drilling units FPSO - FLNG.
Ch.1 Sec.1 (old Sec.1)
— [1.4]: Included definition of “interpretations”.
— [1.5]: A new sub-section on structure has been added.
— [4]: Revised and simplified definitions.
Ch.2 Sec.1 (old Sec.2)
— Completely rewritten
— [3]: Added requirement to establish acceptance criteria.
— [4]: Adjusted radiation level at lifeboats to require heat
protection from 12.5 to 4.7 kW/m2 to align with radiation
requirements generally given.
Ch.2 Sec.2 (old Sec.3)
— [3]:
— Added separation requirements of hazardous and nonhazardous areas including drain
— Added requirements of toe board for deck, gangways, and
stairways.
— Added requirements of the non-use of asbestos.
Ch.2 Sec.3 (old Sec.4)
— [1]: Restructured scope and objective definitions.
— [4]:
— Included IACS/ MODU code definitions for hazardous
areas.
— Added battery installations requirements.
Ch.2 Sec.4 (old Sec.5)
— Major changes in that Sec.4 will only include general
requirements applicable to all offshore units whereas specific
requirements related to Drilling Units or FPSOs are now
included in Sec.6 and Sec.7 respectively.
— [1]:
— Objective rewritten to make clear the complementary role of
ESD to hazardous areas wrt. ignition control.
— Scope description has been included.
— Completion application description to make clear the difference
of our follow up between basis class and ES.
— [2]: Containing basis provisions based on MODU code (with our
interpretations.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 14
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-A101
(continued)
October 2013
Document title
Safety Principles and
Arrangements
(continued)
Changes
Ch.2 Sec.5 (old Sec.6)
— [2] and [4]:
— Escape routes are now related to regularly manned areas.
— Ref. is made to DNV-OS-D201 related to escape/access for
switchboards and capacity requirements for batteries for
emergency lighting.
— [5]: Revised MODU Code/SOLAS references for marking of
units in transit.
— [6]: Clarified principles for alarm and alert signals and added
reference to DNV-OS-D202 on alarm philosophy.
Ch.2 Sec.6 (Old Sec.8)
— Clarified that the section is also applicable for well intervention
units with return of hydrocarbons.
— [3]: Aligned and restructured area hazard classification with
IACS.
— [4]: As for Sec.7 [4] the same has been done for this section.
— Restructured between basis provisions and enhanced ESD
system requirements.
Ch.2 Sec.7 (Old Sec.7)
— [1] and [5]: Clarified principles for units where simultaneous
production and tank inspection will apply (in [1]) and added such
requirements (in [5]).
— [4]: As for Sec.5 this is subjected to a major revision in that all
specific requirements for FPSOs are given in this part as opposed
to the previous version where too many specific FPSO
requirements were given as general requirements.
— New figures for ESD overall shutdown hierarchy have been
given for both anchored and dynamically units have been
included.
Ch.2 Sec.8 (Old Sec.9)
— [7]: As for Sec.7 [5] a new part has been added for units where
simultaneous production and tank inspection will take place.
Ch.3 Certification and classification
— This chapter is new.
Appendices
DNV-OS-A201
October 2013
Winterization for Cold
Climate Operations
(Tentative)
— A new App.C has been added on methodology that can be used
for ignition source control.
General
This is a new document.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 15
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-C301
October 2013
Document title
Stability and Watertight
Integrity
Changes
General
— The structure of this document has been converted to decimal
numbering. Older references to this document may normally be
interpreted by analogy to this example:
— “DNV-OSS-101 Ch.2 Sec.3 D506” is now “DNV-OSS-101
Ch.2 Sec.3 [4.5.6]”.
Ch.1 Sec.1 Introduction
— [4.2.4] has been amended by adding “or weathertight”.
Ch.2 Sec.1 Stability
— In [1.1.5] the convention for IMO MODU Code references has
been modified.
— A note has been added to [4.2.2].
— A note has been added to [5.2.2].
Ch.2 Sec.2 Watertight Integrity, Freeboard and Weathertight
Closing Appliances
— [10.1.1] has been amended regarding description of waterlines
(beach lines).
DNV-OS-D101
October 2013
Marine and Machinery
Systems and Equipment
General
The document has been updated to be in accordance with the new
principles for DNV Offshore Standards for Classification, including:
— The structure of this document has been converted to decimal
numbering. Older references to this document may normally be
interpreted by analogy to this example:
— “DNV-OSS-101 Ch.2 Sec.3 D506” is now “DNV-OSS-101
Ch.2 Sec.3 [4.5.6]”.
— Interpretations have been added.
— The voluntary ES notation has been defined.
— Alignment with IACS, MODU code and other relevant
international standards.
Ch.1 General
— The chapter has been restructured to clarify objective and scope
of the standard.
— Definition of Interpretations has been included in Sec.1 [1.3].
Ch.2 Technical Provisions
— Restructured detailed rules to make clear their relation to
principal requirements.
— Updated existing guidance notes to make clear that a follow up is
expected.
— Requirements for refrigeration system of Sec.1 [1.11] defined
under the scope of ES.
— Removed previous Sec.5 F Windlasses, Winches and Chain
Stoppers for Temporary and Limited Use. Now covered by
updated DNV-OS-E301.
Ch.3 General
— A more extensive description of classification in Sec.1 [1] and an
overview of the requirements covered by ES included.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 16
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-D201
October 2013
Document title
Electrical Installations
Changes
General
The document has been updated to be in accordance with the new
principles for DNV Offshore Standards for Classification, including:
— The structure of this document has been converted to decimal
numbering. Older references to this document may normally be
interpreted by analogy to this example:
— “DNV-OSS-101 Ch.2 Sec.3 D506” is now “DNV-OSS-101
Ch.2 Sec.3 [4.5.6]”.
— Alignment with IACS, MODU code and other relevant
international standards.
— Interpretations have been introduced.
Ch.1 Introduction
— Sec.1 [1.3.1]: Definition of interpretations has been included.
— Sec.1 [1.4]: Description of the documents structure as been
included.
— Sec.1 [4.10.1]: Definitions of switchboards, assemblies,
switchgear and controlgear given.
Ch.2 Technical provisions
— General
— Detailed rules have been restructured in order to clarify their
relation to principal requirements.
— Existing guidance notes have been updated to specify that a
follow up is expected.
— Sec.1 General
— [4.4.2]: The list of Important services has been amended.
Among changes: auxiliary boilers in vessels with HFO as the
main fuel is regarded as important equipment.
— [4.4.3]: The list of Emergency services has been amended.
Among changes: navigation and communication system
listed as emergency systems.
— [4.6.2]: EMC zones have been defined.
— Sec.2 System design
— Several detailed requirements have been deleted:
— in previous D102 on battery charger
— in previous H303 Generator instrumentation a) on
busbar frequency read-out
— in previous I205 on lighting circuits for cargo spaces.
— [1.2.2]: Sockets can be accepted for any voltage level.
— [2.2.5]: Requirements related to regeneration of power by e.g
water milling of propellers are made applicable to all
offshore units.
— [3.1.1]: Requirements for ventilation of emergency
generator room and cooling of emergency generator prime
mover have been added.
— Table 2-1: Requirement for emergency power for fire
fighting system and alarm sounder system has been added.
— [6.4]: Limitation for rating of socket outlets for shore
connection has been deleted.
— [7.1.1]: Requirement for load shedding shall take into
account both active and reactive overload.
— [7.2.4]: Common short circuit protection is acceptable for
non-important consumers and for consumer constituting a
functional service group.
— [7.2.6]: Requirement to short circuit protection of secondary
side of control power transformer has been modified.
— [7.4.2]: New requirement for protection of high voltage control
transformers.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 17
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-D201
(continued)
October 2013
Document title
Electrical Installations
(continued)
Changes
— [8.1.1]: If one pole or phase of the control voltage source is
earthed, the control wiring and interlocks (if any) shall be
installed on the non-earthed side of any relay coils.
— [8.2.2]: All generator prime movers and generator circuit
breakers shall have means for manual operation.
— [8.2.4]: A shut down or stop signal to the prime mover shall
cause disconnection signal to the generator circuit breaker.
— [8.2.5]: Each generator cubicle shall have a separate circuit
from the control voltage distribution, with separate short
circuit protection.
— [8.4.2]: Requirement for local control of motors and motor
starters has been added.
— Table 2-6: Requirements for minimum cross-section of earth
conductor have been updated.
— [10.5.4]: Requirements for de-rating of bunched cables have
been updated.
— [10.8.1]: Tables for Current rating of cables with temperature
class 60, 85 and 95 deg. C have been deleted.
— Sec.3 Equipment in general
— [2.3]: Maximum operational temperature limits have been
updated.
— [3.1.4]:The possibility for defining EMC zones as given in
IEC 60533 has been included.
— [4.3.2]: Requirement to cable entrance clarified.
— [4.6.1]: Requirement for clearance and creepage distances
have been updated.
— [7.1]: General type test requirement for equipment has been
introduced.
— Sec.4 Switchgear and controlgear assemblies
— [1.1.8]: Requirements for clearance and creepage distances for
low voltage equipment have been modified.
— [1.1.9]: Requirements for clearance and creepage distances for
high voltage equipment have been moved from Sec.3.
— [4.1.3]: Verification requirements for short circuit protection
of control power transformers have been introduced, ref
changes in Sec.2 [7.2.6].
— [4.1.4]: Requirements for power frequency tests for low
voltage switchgears and controlgears given.
— Sec.5: Rotating machines
— [1.3.1]: Requirements for temperature detectors for
propulsion motors have been moved from Sec.12.
— [3.1.1]: Test requirements for electrical machines have been
updated.
— Sec.8: Miscellaneous equipment
— [1.3.3]: Requirement to top plate inclination of space heaters
has been removed. Installation requirements have been
moved to Sec.10.
— Sec.9: Cables
— [2.3.2]: Minimum conductor cross section of cables rated
above 6/10kV has been increased.
— [2.6.2]: Requirement for minimum 85 degrees temperature
class of protective sheet has been introduced and acceptable
insulation materials has been updated.
— [6.1.1]: New requirements for data communication cables
have been introduced.
— [7.1.1]: New requirements for flexible cables have been
introduced.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 18
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-D201
(continued)
October 2013
Document title
Electrical Installations
(continued)
Changes
— Sec.10: Installation
— Table 10-1: The required IP rating of control desks in dry
control rooms may be relaxed.
— Table 10-1: IP grade required for instrumentation
components in dry control rooms and switchboard rooms is
changed from IP 22 to IP20.
— [2.7.1]: New requirements to installation of lighting fixture
regarding UV resistant cables.
— [3.2.2] b): Requirement to 300 mm separation between high
voltage cables and low voltage cables is deleted. New
requirement in line with IACS UR E11: “High voltage cables
are not to be installed on the same cable tray for the cables
operating at the nominal system voltage of 1 kV and less”.
— [3.3]: Requirements to cable penetrations have been updated.
— [3.5.2]: Aluminium cable trays may be accepted.
— [3.5.4]: Bending radiuses have been adjusted.
— [3.9.4]: Earthing requirements to cable metal covering have
been modified.
— [4.3.2]: Requirements for electrical tests of high voltage
cable after installation have been modified.
— [4.4.7]: Mandatory test requirement for harmonic distortion
has been introduced.
— Sec.11: Hazardous areas installations
— Table 11-1: The requirements for documentation of Is-circuit
limits and values are clarified.
— [3.2.4]: Ex requirement in rooms for refrigerating systems
has been introduced.
— [3.3.6]: Requirement for earth fault protection in hazardous
area for TN-S has been introduced.
— Sec.12: Electric propulsion
— [1.1.1]: An offshore unit with shaft generator(s) which can
be operated in a “power take in” (PTI) mode shall be
regarded as having electrical propulsion.
— [1.2.1]: The option with only one electrical propulsion motor
with to sets of windings has been removed and some other
system design requirements for electrical propulsion have
been modified.
— [1.6.2]: New requirement for fail safe functionality of power
plant control system.
— [1.6.3]: Monitoring requirements have been updated.
— [2.1.1]: Requirements for onboard testing has been changed.
Ch.3 Certification and classification
— Table 1-2 has been amended. Among the changes: operation modes
shall be included in the System philosophy.
Calculation of single phase fault against earth shall be included for
systems with earthed neutral.
— Table 1-3 has been amended. Among the changes: for permanent
magnet motors, relevant drawings for assessment of mechanical
strength shall be submitted for approval.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 19
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-D202
October 2013
Document title
Changes
Automation, Safety and
Telecommunication Systems
General
The document has been updated to be in accordance with the new
principles for DNV Offshore Standards for Classification, including:
— The structure of this document has been converted to decimal
numbering. Older references to this document may normally be
interpreted by analogy to this example:
— “DNV-OSS-101 Ch.2 Sec.3 D506” is now “DNV-OSS-101
Ch.2 Sec.3 [4.5.6]”.
— Interpretations have been added.
— The standard has been aligned with IACS, MODU code and other
relevant international standards.
— The standard has been aligned with DNV Rules for Classification
of Ships, Pt.4 Ch.9 and the latest insights and experiences.
Ch.1 General
— The chapter has been restructured to clarify objective and scope
of the standard.
Ch.1 Sec.1 General
— Definition of Interpretations has been included in [1.3].
— Previous A400 has been amended and moved to Ch.2 Sec.3.
Ch.2 Sec.1 Design Principles
— Previous D (Back up Functions and Emergency Operation) has
been removed.
— Test descriptions have been updated.
Ch.2 Sec.2 System Design
— Detailed descriptions on mutual independence in [1.1.3].
— Power distribution requirements of [2] have been updated.
Ch.2 Sec.3 System Software
— Previous C on serial communication has been deleted.
Ch.2 Sec.4 Component Design and Installation
— Previous D200 has been deleted since it is covered by DNV-OSD101.
Ch.3 General
— An overview of the requirements covered by the voluntary ES
notation has been included.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 20
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-D301
October 2013
Document title
Fire Protection
Changes
General
Restructured in accordance with the new principles for DNV
Offshore Standards for Classification, including:
— alignment with IACS, MODU code and other relevant
international standards
— interpretations
— definition of the voluntary ES notation.
Updated to reflect changes in regulatory background (i.e. MODU and
FSS code) and latest experiences and insights
The structure of this document has been converted to decimal
numbering. Older references to this document may normally be
interpreted by analogy to this example:
— “DNV-OSS-101” Ch.2 Sec.3 D506 is now “DNV-OSS-101 Ch.2
Sec.3 [4.5.6].”
Ch.1 Sec.1 General
—
—
—
—
Completed introduction with scope and structure of document.
Include definition of Interpretations in [1.3].
Restructured to make more clear objective and scope of standard.
Revised definitions and added some, e.g. active fire protection,
fire detection area.
Ch.2 Technical Provisions
Moved unit specific requirements to relevant sections.
Ch.2 Sec.2 Active fire protection of specific areas
— Revised Table 1-1.
Ch.2 Sec.4 Fire and/OR Gas Detection and alarm Systems
— Completed restructured section in line with FSS code Ch. 9 for
both fire and gas detection systems.
— Subsection [3] and [4]: Clarified the intention of R0.
— Clarified unconfirmed and confirmed gas detection.
Ch.2 Sec.5 Miscellaneous Items
— Removed subsection on operational readiness and maintenance
Ch.2 Sec.6 Supplementary Requirements for Drilling and Well
Intervention Units
— Subsection [3]: Added requirements for drill ships.
Ch.2 Sec.7 Supplementary Requirements for Oil and Gas
Production and/or Storage Units
— Subsection [3]: Added requirement for remote stop of fire pumps
for units where stability problems may arise to avoid capsizing.
Ch.3 Sec.1 Classification
— Include a more extensive description of classification in the new
sub-section [1] and an overview of requirements covered by ES.
Ch.3 Sec.2 Certification of Equipment
— Revised general requirements and equipment categorisation to
align with practice.
Previous Appendix A - “Fixed Fire Fighting Systems” has been
deleted.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 21
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-E101
October 2013
Document title
Drilling Plant
Changes
General
— The structure of this document has been converted to decimal
numbering. Older references to this document may normally be
interpreted by analogy to this example:
— “DNV-OSS-101” Ch.2 Sec.3 D506 is now “DNV-OSS-101
Ch.2 Sec.3 [4.5.6].”
Ch.1 Sec.1 Introduction
— API Standard 53 included as normative reference.
— Clarification regarding temporary installed equipment.
— Including qualification requirements for novel technology/
designs.
Ch.2 Sec.1 Design Principles
— Changed definitions, use and arrangement of Safety Systems and
Drilling Systems (Essential/Important/Non-important).
— New sub-section [2.2] regarding well barriers. Previous B200 has
been renumbered to [2.3].
Ch.2 Sec.3 Piping
— Clarifications regarding flexible hoses.
Ch.2 Sec.4 Electrical and Automation/Safety Systems
— Clarifications regarding electrical systems.
Ch.2 Sec.5 Drilling Systems and Equipment
— [3]: New requirements, definitions and clarifications for well
control equipment.
— [5]: Clarified requirements to drawworks.
— [6]: Clarified that this sub-section is also applicable to riser
handling.
— [8]: New sub-section regarding Managed Pressure Drilling
(MPD) systems. Previous H, I and J has been renumbered [9],
[10] and [11].
— [10]: Clarified requirements for man-riding equipment.
Ch.2 Sec.6 Manufacture, Workmanship and Testing
— Previous Sec.7 has been renumbered due to moving of Sec.6 to
Appendix A.
— Clarified requirements for welding.
Ch.3 Sec.3 System and Equipment Certification
— Including certification requirements for MPD systems, in
addition to some other changes (e.g. Choke and Kill valves are
now Category I).
App.A Workover and Well Intervention Systems and Equipment
— Requirements to workover and well intervention are moved to
Appendix A from previous Ch.2 Sec.6.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 22
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-E301
October 2013
Document title
Position Mooring
Changes
General
— The structure of this document has been converted to decimal
numbering. Older references to this document may normally be
interpreted by analogy to this example:
— “DNV-OSS-101” Ch.2 Sec.3 D506 is now “DNV-OSS-101
Ch.2 Sec.3 [4.5.6].”
Ch.1 Sec.1 General
— Minor updates of references.
— Included new terms.
Ch.2 Sec.1 Environmental Conditions and Loads
— Old B202 has been deleted.
— [2.2.4] (previous B205): Clarification regarding extreme
environmental conditions.
— [2.3.4]: Squalls wind speeds are 1 min average.
— [2.3.6]: Clarification regarding how to consider squalls in design.
— New [2.3.8]: Included that an analysis length of 1 hour is
recommended since the duration of squalls is approximately 1 hour.
— Old B502, B504, B505, B508 and B509 have been deleted.
— Minor changes in [3.1.1], [3.2.1], [3.2.5] and [3.2.8].
— Previous C500 Wave frequency motions moved to Sec.2 [2.3].
— Previous C600 Low frequency motions moved to Sec.2 [2.4].
Ch.2 Sec.2 Mooring System Analysis
— [2.1.2] has been rewritten due to new definitions of fibre rope
performance. Guidance Note has been deleted.
— Old B103 and B104 have been deleted.
— Previous B111 now [2.1.9] has been rewritten due to new
definitions of fibre rope performance.
— Previous B112 now [2.1.10] Amended text: “The change-inlength behaviour of synthetic fibre ropes or tethers has to be
verified by testing”.
— [2.2.1]: Clarification regarding requirements to document that the
chosen calculation program is applicable for the particular anchoring
system and on the particular location. New Guidance Note.
— New [2.2.2], [2.2.3] and [2.2.4].
— Old B202 now [2.2.5] amended - formula removed.
— Old B204 now [2.2.7] extended regarding extreme value
distribution.
— Old B205 regarding simulation length has been relocated to [2.2.9]
— Old B208 now [2.2.11] has been amended. Guidance Note has
been deleted.
— Old B209, B210 and B211 have been deleted.
— New [2.3] and [2.4]. They are previously C500 and C600 in
Sec.1.
— B300 Floating platform response analysis is now [2.5].
— Old B303 has been amended and is now [2.5.3]. Guidance Note
is deleted.
— Old B304 and B305 have been deleted.
— B400 Mooring line response analysis is now [2.6].
— Old B405 has been deleted.
— B500 Characteristic line tension for the ULS is now [2.7].
— B600 Characteristic line tension for the ALS is now [2.8].
— [3.2.3]: Added description for steel wire rope going over
fairleads.
— Table 2-3: added requirements for tropical waters.
— E203: Moved to Ch.2 Sec.4 [9].
— Minor amendment in [6.4.5] and a reference to [6.2.6] have been
included.
— The expression “tension compression” is changed to “lowtension” in [6.6.2] and [6.6.3].
— Figure 10 in [6.6.4] is deleted.
— [8]: Reference /9/ is deleted.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 23
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-E301
(continued)
October 2013
Document title
Changes
Position Mooring (continued) Ch.2 Sec.3 Thruster Assisted Mooring
— New class notations have been added: TAR and ATAR.
— The section has been harmonised with Rules for Classification of
Ships Pt.6 Ch.7 Dynamic Positioning Systems with respect to power
and control systems. Redundancy requirements has been amended.
— In [4.2.1] the power systems with and without redundancy have
been directly attached to the DYNPOS notation requirements.
— Previous D202 to D206 have been deleted.
— [4.3.1] and [4.3.2] regarding control systems have been
amended.
— Previous D400 Manual thruster control has been deleted.
— Previous D500 Remote thrust control, joystick system has been
deleted.
— Previous D600 will now be [4.4].
— Previous D602 now [4.4.2] with new wording: “A mode selector
shall be arranged in the thruster control position to enable
switching between manual and automatic thruster control”.
— Previous D603 now [4.4.3] which specify that if redundancy is
required the control system shall comply with DYNPOS-AUTR,
else DYNPOS-AUT.
— Previous D800 is now [4.5] and have been amended by removing
previous D805, D808, D809, D809, D810, D811 and D812.
— Previous D900 is now [4.6].
— Previous D1000 Simulation is now [4.7].
— Previous D1100 Logging is now [4.8].
— Previous D1200 Self-monitoring is now [4.9].
— Previous F101 has been amended by [5.1.1] new wording:
“Thrusters shall be certified as thrusters for dynamic positioning
if not used for propulsion of the vessel”.
Ch.2 Sec.4 Mooring Equipment
— [2]: Removed “For anchors” in heading.
— [2.1.3]: Clarification regarding loads to apply on turret
structures.
— Previous B200: Moved to new section [3.3].
— [9]: New section 9.2 (moved from previous Ch.2 Sec.4 N).
— [10.1.1] changed to: “Technical requirements for offshore
mooring fibre ropes and tethers are given in DNV-OS-E303”.
— [10.1.2] the word “rotation” changed to “twisting”. Updated
Guidance Note.
— New [10.2] Operation.
— New [10.2.1]: “Requirements to operation of offshore mooring
fibre ropes and tethers are found in DNV-OS-E303.”
— Old J200 is now [10.3].
— [10.3.1] changed to: “Documentation requirements for offshore
mooring fibre ropes and tethers are given in DNV-OS-E303”.
— Old J202, J203, J204, J205 and J206 are deleted.
— [11.5]: Title changed.
— [11.5.2]: Specified wire layer to be used for dimensioning winch
brake.
— [11.5.9]: Added requirement to max speed during emergency
release.
— [11.5.12]: New paragraph with requirement to deluge.
— [11.9]: New section (moved from previous Ch.2 Sec.4 L).
— [12]: New section regarding winches for pull-in of mooring and
riser systems.
— [13.3.4]: Added requirement to DFF to be used in long term
(permanent) mooring.
— [14.1.1]: Changed requirement for line tension recording from 24
h to 30 days.
— [18]: New section regarding bearings.
Ch.2 Sec.5 Tests
— Table 5-1: The table has been amended by:
- adding a note regarding stalling
- additional test requirements on control system.
DET NORSKE VERITAS AS
DNV Service Documents , October 2013
Sec.3 Summary of Changes – Page 24
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-E301
(continued)
October 2013
Document title
Changes
Position Mooring (continued) Ch.3 Sec.1 Certification and Classification
— Previous D300: Deleted as requirement belongs in OSS.
— The wording in first paragraph of [4.5.2] is changed.
Ch.3 Sec.2 Equipment Selection and Certification
— [7.1.2] has been extended.
— [7.2] heading changed to Condition Management
— [7.2.1], the wording fibre rope assemblies are changed to
offshore mooring fibre lines. Reference to Ch.2 Sec.2 has been
deleted.
— [7.2.2], the wording in service condition assessment scheme is
changed to condition management program.
— Previous G203 has been deleted.
App.A Required Documentation
DNV-OS-E302
October 2013
Offshore Mooring Chain
— The wording in [A.1.3.6] has been changed.
General
— The structure of this document has been converted to decimal
numbering. Older references to this document may normally be
interpreted by analogy to this example:
— “DNV-OSS-101” Ch.2 Sec.3 D506 is now “DNV-OSS-101
Ch.2 Sec.3 [4.5.6].”
— Reference to Purchaser where Purchaser agreement is referred to
has been deleted.
Ch.1 Sec.1 Introduction
— Table 1-1: New references.
— [3.1.4]: DNV referenced in definition.
Ch.2 Sec.1 Materials
— [1.6.1]: Level II requirement to NDT operators.
— [3.4.2] and [4.4.2]: Option to use oil has been included.
— [3.7.1]: Allowable grinding depth on machined surfaces has been
specified.
Ch.2 Sec.2 Mooring Chain Cables and Accessories
— [2.5.3]: Deleted requirement to check furnace temperature
uniformity when change of chain size.
— [2.9.1]: Requirement to accuracy of measurements has been
introduced.
— [2.9.4]: Change of areas to be measured and acceptance criteria.
— [2.10.3]: Requirement to use of fluorescent MT has been added.
— [2.10.4]: Open up for use of Phased Array added in the Guidance
note.
— [2.11.3]: Allowable temperature has been changed.
— [3.7.3]: Clarification in extent of NDT.
— [3.7.4]: A new Note has been added clarifying UT requirements.
— [3.8.1]: Allowable grinding depth on machined surfaces has been
specified.
— Table 2-3: A new Note 4 has been added.
Ch.3 Sec.1 Certification and Classification - Requirements
— [2.4]: List of procedures for approval has been added.
— [2.6]: Content of material certificates has been clarified.
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Sec.3 Summary of Changes – Page 25
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-E304
October 2013
Document title
Changes
Offshore Mooring Steel Wire General
Ropes
— The structure of this document has been converted to decimal
numbering. Older references to this document may normally be
interpreted by analogy to this example:
— “DNV-OSS-101” Ch.2 Sec.3 D506 is now “DNV-OSS-101
Ch.2 Sec.3 [4.5.6].”
Ch.1 Introduction
— Sec.1 Table 1-1: Some international standards that are listed as
applicable references have been replaced or withdrawn.
Ch.2 Technical Provisions
— Sec.2 [2.2.1], [2.4.3], [3.5.1]-[3.5.2], Sec.4 [2.1.4]: Some
international standards that are listed as applicable references
have been replaced or withdrawn.
— Sec.5 Figure 5-1: The figure showing the material samples
location in the socket have been improved.
— Sec.5 [2.4.2] and [3.2.3]: Text have been added.
— Sec.7: “and towing” has been deleted from section title and Sec.7
[1.1.1].
— Sec.7 [1.2.3]: The term lay has been replaced by the term
spinning.
Ch.3 Certification and Classification
— Sec.1 [2.5.2]: Added requirement that min 5% of the wires shall
be individually tested with DNV Surveyor.
— Sec.1 B702 “Materials for wires shall be delivered with the
manufacturer’s certificates or test reports” has been deleted.
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Sec.3 Summary of Changes – Page 26
Table 3-2 DNV Standards (Continued)
Document
number
DNV-OS-F101
October 2013
Document title
Changes
Submarine Pipeline Systems
General
— Excessive conservatism related to fracture assessment of girth
welds has been removed in Appendix A leading to:
— relaxation of weld repair requirements
— increased installation speed.
— Other changes:
— reference list updated.
— general update based upon feed-back from industry.
Sec.4 Design - Loads
— G407: Clarify effect of selecting larger positive tolerances.
Sec.5 Design – Limit State Criteria
— C402: Minimum wall thickness requirement re-worded to avoid
misinterpretations.
— E1100: Pipe-in-pipe and bundles moved from G200.
— Equation 5.6 corrected
— F107: Clarifications on code break.
Sec.7 Construction – Linepipe
— E104: Implications of reduction in mill test pressure clarified.
— I400: Table 7-26: Amended by adding t = 15 mm step for HFW
pipes.
Sec.10 Construction – Offshore
— J307: Pressure test accuracy requirement modified.
Appendix A Fracture Limit State of Girth Welds
— General clarifications based on comments from industry.
— The terms 'defect', 'flaw' and 'notch' have been defined.
— The Lr cut-off formula for strain based loading has been
amended by adding limit. The Lr cut-off value shall not exceed
1.5.
— Table A-7 for assessment of surface breaking flaws has been
amended.
Appendix D Non-Destructive Testing (NDT)
— B212: Digital Radiography reference updated to ISO 17636-2.
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Sec.3 Summary of Changes – Page 27
3 Changes to DNV Recommended Practices
Table 3-3 DNV Recommended Practices
Document
number
DNV-RP-A205
October 2013
Document title
Changes
Offshore Classification
Projects - Testing and
Commissioning
General
— Spelling, grammar and punctuation have been amended.
— The use of abbreviations has been standardized and [1.8]
Abbreviations has been expanded.
— References to renumbered documents have been updated.
Sec.6 Safety, health and environment
— A new Sec.6 on SHE has been added.
Appendices
DNV-RP-D202
October 2013
Witnessing of Low Sulphur
Fuel Changeover and
Operations
— Previous App.A.6 has been deleted.
— There have been minor updates to App.A, App.B and App.C.
— In App.D and App.E survey categorisation has been developed
for FPSO and FSO (previously marked “Pending”).
— Survey scope for the Class Notation PROD has been developed
in App.G.2.
This is a new document.
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