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AS/NZS 1518:2002
[Current]External extruded high-density polyethylene coating system for pipes
Provides requirements for use by purchasers and manufacturers of steel pipeline systems, for external protection of pipeline systems against corrosion, by a method of annular or laterally extruded layer of high-density polyethylene over a sealant layer. Operating temperatures are in the range of -20 degrees Celsius to 55 degrees Celsius.
Published: 11/03/2002
Pages: 33
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Referenced documents
3 Definitions
4 Material requirements
4.1 Sealant
4.2 Polyethylene
4.3 Repair materials
4.4 Material documentation and marking
4.4.1 Documentation
4.4.2 Marking
5 Pipe surface preparation and coating application
5.1 Surface preparation
5.2 Sealant application
5.3 Polyethylene application
5.4 Double coating
6 Coating repairs and field joint coatings
6.1 General
6.2 Repair method
6.2.1 Repairs by recoating
6.2.2 Repairs by overcoating
6.3 Preparation
6.3.1 General
6.3.2 Environment
6.3.3 Linepipe coating preparation
6.3.4 Drying
6.3.5 Surface preparation
6.4 Heat-shrink sleeve repairs
6.4.1 Material requirements
6.4.2 Application
6.5 Laminate tape repairs
6.5.1 General
6.5.2 Material requirements
6.5.3 Priming
6.5.4 Tape application
6.6 Bond adhesion tests
6.7 Holiday testing
7 Test requirements and procedures
7.1 Test requirements
7.2 Pipe surface preparation
7.2.1 Temperature and dew point
7.2.2 Surface profile and class of surface preparation
7.3 Sealant coating
7.3.1 Thickness
7.3.2 Fineness
7.4 High density polyethylene (HDPE) coating system
7.4.1 Holiday testing
7.4.2 Visual condition
7.4.3 Thickness
7.4.4 Cut-back region
7.4.5 Melt flow index
7.4.6 Tensile and elongation testing
7.4.7 Retest
7.5 Other tests
7.5.1 Resistance to cathodic disbondment
7.5.2 Resistance to weather exposure
7.5.3 Thermal stability of HDPE
7.5.4 Resistance to splitting of HDPE
7.5.5 Peel adhesion test
7.5.6 Bend test
7.6 Traceability
7.6.1 Pipe identification
7.6.2 Records
8 Marking
9 Handling, storage and transport
9.1 Raw materials
9.2 Handling
9.3 Storage of uncoated pipes
9.4 Storage of coated pipes
9.5 Transport
Appendix A
A1 General
A2 Storage period
A2.1 Uncoated pipes
A2.2 Coated pipes
A3 Information to be supplied by the purchaser
A4 Information to be supplied by the coating applicator
A5 Certificate of compliance (materials)
A6 Certificate of compliance (coating system)
Appendix B
B1 Scope
B2 Relevance
B3 Product certification
B4 Minimum sampling and testing frequency plan
B4.1 General
B4.2 Retesting
B4.3 Rejection after test
Appendix C
C1 Scope
C2 Pipe surface preparation and coating application
C2.1 Surface preparation
C2.2 Field joint coating and repairs
C2.3 Test requirements and procedures
C2.3.1 General
C2.3.2 Cut-back region
C2.3.3 Resistance to cathodic disbanding
C2.4 Traceability
C2.5 Storage
C2.6 Information to be supplied by the purchaser
Appendix D
D1 Scope
D2 Principle
D3 Apparatus
D4 Preparation of test piece
D5 Procedures
D6 Test report
Appendix E
E1 Scope
E2 Principle
E3 Apparatus
E4 Preparation of test samples
E5 Procedure
E6 Test report
Appendix F
F1 Scope
F2 Apparatus
F3 Procedure
F4 Report
Appendix G
G1 Scope
G2 Equipment
G3 Test specimen
G4 Test parameters
G5 Procedure
G6 Report
Appendix H
H1 Scope
H2 Specimen preparation
H3 Temperature conditioning
H4 Bending procedure
H5 Bend test acceptance level
H6 Report
Amendment control sheet
Cited references in this standard
ASTM D1693
Environmental stress-cracking of ethylene plastics
[Withdrawn]
Determination of tensile properties of plastics materials, Part 3: Test conditions for films and sheets
[Superseded]
Guide to AS 1199 — Sampling procedures and tables for inspection by attributes
Content history
[Current]
[Superseded]
DR 00185
AS/NZS 1518:2002 Rec:2016
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