ISO : (E)

Transcription

1 ISO : (E) Petroleum and natural gas industries - External coatings for buried or submerged pipelines used in pipeline transporta tion systems - Part 3: Field joint coatings Contents Page Foreword... ix Introduction... x 1 Scope Normative references Termsanddefinitions Symbols and abbreviated terms Symbols Abbreviated terms General requirements Responsibily of the end user Rounding Compliance, testing and quality Information to be supplied by the purchaser General information Additional information Applicationproceduresandqualification Application procedure specification (APS) Coating materials Procedure qualification trial (PQT) Pre-production trial (PPT) Qualification of coating and inspection personnel Production testing and inspection Inspection documents and traceability Classificationoffieldjointcoatings General requirements for surface preparation, coating application, testing and repair Surface preparation General Preparation of the steel substrate Preparation of the adjacent plant-applied coating Application of the coating Visual inspection of the applied coating Testing of the field joint coating Repairs Verification, handling and storage of coating materials Hot-applied bituminous tape coatings Coating identification Description of the coatings Surface preparation Coating application General

2 Application of the primer Application of the bituminous tapes Overlap Testing of the applied coatings General Thickness Holiday detection Impact resistance Indentation resistance Specific electrical insulation resistance Cathodic disbondment Peel strength to pipe surface and plant coating Hot-water immersion test Lap shear strength Petrolatum and wax-based tape coatings Coating identification Description of the coatings Petrolatum tapes (Type 11A) Wax-based tapes (Type 11B) Surface preparation Coating application General Application of the primer Application of petrolatum or wax-based tapes Overlap Testing of the applied coatings General Thickness Holiday detection Impact resistance Indentation resistance Specific electrical insulation resistance Cathodic disbondment Peel strength to pipe surface and plant coating Hot-water immersion test Drip resistance Cold-applied polymeric tape coatings Coating identification Description of the coatings Surface preparation Coating application General Application of the primer Application of polymeric tapes Overlap Testing of the applied coatings General Thickness Holiday detection Impact resistance Indentation resistance Cathodic disbondment Peel strength between tape layers of polymeric tapes Peel strength to pipe surface and plant coating Hot-water immersion test Lap shear strength Thermal ageing resistance Non-crystallinelow-viscositypolyolefinbasedcoatings

3 13.1 Coating identification Description of the coatings Surface preparation Application of the coatings General Overlap Testing of the applied coating General Thickness Holiday detection Impact resistance Indentation resistance Specific electrical insulation resistance Cathodic disbondment resistance Peel strength between layers of outer wrap Adhesion to pipe surface and plant coating Thermal ageing resistance Resistance to lap shear Hot-water immersion test Glass transition and crystallization temperatures Drip resistance Coatings based on heat-shrinkable materials Coating identification Description of the coatings General Type 14A Types 14B, 14C and 14D Surface preparation Application of the coatings General Application of the primer Application of heat-shrinkable materials Overlap Testing of the applied coatings General Thickness Holiday detection Peel strength Cathodic disbondment Hot-water immersion test Impact resistance Indentation resistance Lap shear strength Thermal ageing resistance and thermal stability Bursting strength Oxidation induction time Hot-applied microcrystalline wax coatings Coating identification Description of the coating Surface preparation Application of the coating General Application of the microcrystalline wax Application of the outer wrap Application of wax top coat Testing of the applied coatings General Thickness Holiday detection Adhesion

4 Hardness Elastomeric coatings Coating identification Description of the coatings Surface preparation Application of the coatings General In situ vulcanization method Ambient-cure adhesive method Testing of the applied coatings General Visual appearance Coating thickness Holiday detection Hardness Adhesion Hot-water immersion test Cathodic disbondment Density Rheometer curve -- Oscillating disc Tensile strength Elongation at break Tear strength Electrical volume resistivity Ozone resistance Resistance to seawater Fusion-bonded epoxy (FBE) powder coatings Coating identification Description of the coatings Surface preparation Application of the coatings General Transport and storage of epoxy powder Heating Application of epoxy powder Testing of the applied coatings General Visual appearance Thickness Holiday detection Adhesion Degree of cure Impact resistance Cathodic disbondment Hot-water immersion test Flexibility Liquid-applied coatings Coating identification Description of the coatings Liquid epoxy -- 18A Liquid polyurethane -- 18B Fibre reinforced epoxy -- 18C Fibre reinforced vinyl ester -- 18D Cast polyurethane -- 18E Surface preparation Application of the coatings General Heating Liquid coatings application

5 18.5 Testing of the applied coatings General Thickness Holiday detection Adhesion Impact resistance Hardness Cathodic disbondment Hot-water immersion test Flexibility Indentation resistance Specific electrical insulation resistance Compressive strength Electrical volume resistivity Water absorption Hot-appliedpolyolefin-basedcoatings Coating identification Description of the coatings Flame-sprayed polypropylene -- Type 19A Hot-applied polypropylene tapes/sheets -- Type 19B Injection-moulded polypropylene -- Type 19C Flame-sprayed polyethylene -- Type 19D Hot-applied polyethylene tapes/sheets -- Type 19E Thickness of the epoxy primer Surface preparation Application of the coating General Heating Application of the epoxy layer Application of the chemically modified PP or PE Application of the polyolefin top coat Testing of the applied coatings General Thickness Holiday detection Peel strength Adhesion to plant coating Hot-water immersion test Degree of cure Cathodic disbondment Impact resistance Indentation resistance Oxidation induction time Flexibility Thermal spray aluminium (TSA) coatings Coating identification Description of the coating Qualification Surface preparation Application of the coating General Aluminium Sealer Testing of the applied coating General Visual inspection TSA porosity Coating thickness Bend test Pull-off adhesion test

6 Sealer penetration Annex A (normative)testprogrammesforprocedurequalificationtrials(pqt),pre- production trials (PPT) or production testing Annex B (normative) Inspection of thickness Annex C (normative) Holiday detection test Annex D (normative) Impact test Annex E (normative) Indentation test Annex F (normative)specificelectricalinsulationresistance Annex G (normative) Cathodic disbondment test Annex H (normative) Peel strength test Annex I (normative) Hot water immersion test Annex J (normative) Lap shear strength Annex K (normative) Drip resistance Annex L (normative) Peel strength between layers Annex M (normative) Thermal ageing resistance Annex N (normative) Thermal stability test (Hot air ageing) Annex O (normative) Bursting strength of reinforced backing Annex P (normative)thermalanalysisofepoxypowerandcuredcoatingfilm(fbe) AnnexQ(normative) Adhesion test -- Resistance to removal Bibliography