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BS EN ISO 18797-2:2021 Petroleum, petrochemical and natural gas industries. External corrosion protection of risers by coatings and linings - Maintenance and field repair coatings for riser pipes >
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BS EN ISO 18797-2:2021 Petroleum, petrochemical and natural gas industries. External corrosion protection of risers by coatings and linings - Maintenance and field repair coatings for riser pipes, 2021
- undefined
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Symbols and abbreviated terms
- 4.1 Symbols
- 4.2 Abbreviated terms
- 5 Coating types
- 6 General requirements
- 6.1 Client’s requirements
- 6.1.1 Approval of repair coating and repair method
- 6.1.2 Specification of purchase order mandatory information
- 6.1.3 Specification of purchase order additional information
- 6.2 Contractor’s requirements
- 6.2.1 Documented information
- 6.2.2 Marking of coating materials
- 6.3 Rounding
- 6.4 Conformity to requirements
- 6.5 Criteria for the condition assessment of an existing coating
- 6.5.1 General – Evaluation of coating condition
- 6.5.2 Applicable inspection techniques
- 7 Qualification processes and application procedures
- 7.1 General
- 7.2 APS and ITP
- 7.2.1 General
- 7.2.2 APS
- 7.2.3 ITP
- 7.3 Technical assessment of coating conformity
- 7.4 Procedure qualification trial
- 7.5 Pre-production trial
- 7.6 Production, testing and inspection
- 7.6.1 General
- 7.6.2 Inspection documents and traceability
- 8 Selection criteria for repair coatings
- 8.1 General
- 8.2 Application constraints
- 8.2.1 Wet substrates
- 8.2.2 Contamination by soluble salts
- 8.2.3 Dust contamination
- 8.2.4 Contamination by oil, grease and other petroleum-like products
- 8.2.5 Compatibility with existing coating
- 8.2.6 Feasibility of surface cleaning
- 8.2.7 Space and riser access constraints
- 8.2.8 Time constraints
- 8.2.9 Temperatures and relative humidity
- 8.2.10 Coating continuity
- 8.3 Operational conditions
- 8.3.1 Resistance to ageing, weathering and water
- 8.3.2 Resistance to mechanical loads
- 8.3.3 Interaction with cathodic protection
- 9 Test programs
- 9.1 Substrate conditions used for tests
- 9.2 Inspections, tests and frequencies
- 9.3 Thickness testing
- 9.4 Retest
- 10 Non-crystalline low-viscosity polyolefin-based coatings
- 10.1 Coating identification
- 10.2 Description of the coatings
- 10.3 Surface preparation
- 10.4 Application of coatings
- 10.4.1 General
- 10.4.2 Overlap
- 10.5 Testing of coatings
- 10.5.1 General
- 10.5.2 Thickness
- 10.5.3 Glass transition temperature and crystallization temperature
- 10.5.4 Holiday detection
- 10.5.5 Drip resistance
- 10.5.6 Adhesion to pipe surface and existing coating
- 10.5.7 Lap shear resistance
- 10.5.8 Specific electrical insulation resistance
- 10.5.9 Impact resistance
- 10.5.10 Indentation resistance
- 10.5.11 Cathodic disbondment resistance
- 10.5.12 Resistance to ageing and weathering
- 10.5.13 Peel strength between layers of outer wrap
- 10.5.14 Thermal ageing resistance
- 10.5.15 Hot-water immersion test
- 11 Petrolatum and wax-based tape wrap systems
- 11.1 Coating identification
- 11.2 Description of the tape wrap systems
- 11.2.1 Petrolatum tape wrap systems (type 11A)
- 11.2.2 Wax-based tape wrap systems (type 11B)
- 11.3 Surface preparation
- 11.4 Application of coating systems
- 11.4.1 General
- 11.4.2 Overlap
- 11.5 Testing of the coating systems
- 11.5.1 General
- 11.5.2 Density
- 11.5.3 Dielectric strength
- 11.5.4 Thickness
- 11.5.5 Holiday detection
- 11.5.6 Impact resistance
- 11.5.7 Specific electrical insulation resistance
- 11.5.8 Cathodic disbondment resistance
- 11.5.9 Adhesion to pipe surface and existing coating
- 11.5.10 Drip resistance
- 11.5.11 Hot water immersion test
- 11.5.12 Resistance to ageing and weathering
- 12 Polychloroprene-based elastomeric coatings
- 12.1 Coating identification
- 12.2 Description of the coatings
- 12.3 Surface preparation
- 12.4 Application of the coating
- 12.4.1 General
- 12.4.2 Overlap
- 12.5 Testing of the coatings
- 12.5.1 General
- 12.5.2 Visual appearance
- 12.5.3 Thickness
- 12.5.4 Holiday detection
- 12.5.5 Hardness
- 12.5.6 Adhesion to pipe surface and existing coating
- 12.5.7 Cathodic disbondment resistance
- 12.5.8 Density
- 12.5.9 Rheometer curve
- 12.5.10 Tensile strength
- 12.5.11 Elongation at break
- 12.5.12 Tear strength
- 12.5.13 Electrical volume resistivity
- 12.5.14 Ozone resistance
- 12.5.15 Resistance to seawater
- 12.5.16 Hot-water immersion test
- 12.5.17 Thermal ageing resistance
- 12.5.18 Resistance to ageing and weathering
- 13 Liquid-applied epoxy coatings
- 13.1 Coating identification
- 13.2 Description of the liquid-applied epoxy coating
- 13.3 Surface preparation
- 13.4 Application of the coatings
- 13.4.1 General
- 13.4.2 Overlap
- 13.5 Testing of the coatings
- 13.5.1 General
- 13.5.2 Dry-film thickness
- 13.5.3 Holiday detection
- 13.5.4 Hardness
- 13.5.5 Impact resistance
- 13.5.6 Indentation resistance
- 13.5.7 Specific electrical insulation resistance
- 13.5.8 Cathodic disbondment resistance
- 13.5.9 Adhesion to pipe surface and existing coating
- 13.5.10 Thermal ageing resistance
- 13.5.11 Hot-water immersion test
- 13.5.12 Resistance to ageing and weathering
- Annex A (informative) Likelihood of exposure in splash zone area
- Annex B (informative) Tests for coatings applied on wet substrates
- Bibliography [Go to Page]