CSA Z245.20 SERIES:26

Abstract

Thanks to the financial contribution of the Western Regulators Forum (WRF), CSA Group is providing the CSA Petroleum and Natural Gas standards in a downloadable PDF format for no fee to Canadian customers only ( Click for more detail ). If you are not in Canada, please reach out to one of the following licensed CSA Group resellers to purchase these standards or contact your local reseller: • Accuris: ( https://store.accuristech.com/ ) • Intertek Inform: ( https://www.intertekinform.com ) Preface This is the fifth edition of the CSA Z245.20 Series, Plant-applied external coatings for steel pipe , which consists of the tenth edition of CSA Z245.20, Plant-applied external fusion bond epoxy coating for steel pipe, the ninth edition of CSA Z245.21, Plant-applied external polyethylene coating for steel pipe, and the fifth edition of CSA Z245.22, Plant-applied external polyurethane foam insulation coating for steel pipe. This edition of CSA Z245.20 supersedes the previous editions published in 2022, 2018, 2014, 2010, 2006, 2002, 1998, 1992, and 1986; this edition of CSA Z245.21 supersedes the previous editions published in 2022, 2018, 2014, 2010, 2006, 2002, 1998, and 1992; and this edition of CSA Z245.22 supersedes the previous editions published in 2022, 2018, 2014, and 2010. These Standards cover the requirements for CSA Z662, Clause 9.2, Selection of external coatings for buried or submerged piping. CSA Z245.20 deals with the requirements for plant-applied external fusion bond epoxy coating for steel pipe. The following are the major changes to this edition: • revised the holiday inspection requirements; • revised the test requirements for production test rings; • revised the requirements for repairing coated pipe; • updated the coating porosity test procedure; • updated the coating gouge resistance test procedure and report requirements; • updated the qualification test requirements for anti-corrosion coatings in Table 2; and • updated the FBE coating repair criteria in Table 9. CSA Z245.21 deals with the requirements for plant-applied external polyethylene coating for steel pipe. The following are the major changes to this edition: • revised the holiday inspection requirements; and • revised the test requirements for production test rings. CSA Z245.22 deals with the requirements for plant-applied external polyurethane foam insulation coating for steel pipe. The following are the major changes to this edition: • revised the materials test reports requirements; • revised the coating system requalification requirements; • revised the finished product retest procedures requirements; • revised the testing frequency requirements for polyethylene resin; • revised the holiday inspection requirements for polyolefin tape coatings in Annex A; and • revised the holiday inspection requirements for liquid coatings in Annex B. These Standards were prepared by the Subcommittee on Coatings, under the jurisdiction of the Technical Committee on Petroleum and Natural Gas Industry Pipeline Systems and Materials and the Strategic Steering Committee on Liquid and Gaseous Energy Systems, and have been formally approved by the Technical Committee. ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CSA Z245.20:26 - Plant-applied external fusion bond epoxy coating for steel pipe Scope 1.1 General This Standard covers the qualification, application, inspection, testing, handling, and storage of materials required for plant-applied fusion bond epoxy (FBE) coating applied externally to bare steel pipe. The coated pipe is intended primarily for buried or submerged service for oil or gas pipeline systems. 1.2 Coating systems This Standard covers the following coating systems: a) System 1A: single-layer FBE with a glass transition temperature of 115 ° C or less; b) System 1B: single-layer FBE with a glass transition temperature greater than 115 °C; c) System 2A: two-layer FBE with an anti-corrosion coating and a protective overcoat; d) System 2B: two-layer FBE with an anti-corrosion coating and an abrasion-resistant overcoat; e) System 2C: two-layer FBE with an anti-corrosion coating and an anti-slip overcoat; and f) System 3: three-layer FBE with an anti-slip overcoat applied over an anti-corrosion coating and a protective overcoat. 1.3 Terminology In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application. ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CSA Z245.21:26 - Plant-applied external polyethylene coating for steel pipe Scope 1.1 General This Standard covers the qualification, application, inspection, testing, handling, and storage of materials required for plant-applied polyethylene coating applied externally to steel pipe, whereby an adhesive is interposed between a bare or epoxy-primed pipe and the polyethylene. The coated pipe is intended primarily for buried or submerged service for oil or gas pipeline systems. 1.2 Coating systems This Standard covers the following coating systems: a) System A: a coating that consists of an adhesive and a polyethylene outer sheath (see Table 1); b) System B1: a coating that consists of a liquid or powdered epoxy primer, a polymeric adhesive, and a polyethylene outer sheath; and c) System B2: a coating that consists of a powdered epoxy primer, a powdered copolymer adhesive, and a powdered polyethylene outer layer. 1.3 Terminology In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application. ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CSA Z245.22:26 - Plant-applied external polyurethane foam insulation coating for steel pipe Scope 1.1 General This Standard covers the qualification, application, inspection, testing, handling, and storage of materials required for plant-applied external polyurethane foam insulation coating to steel pipe. The coated pipe is intended primarily for buried or submerged service for oil or gas pipeline systems. 1.2 Coating systems This Standard applies to foam insulation coating composed of a) anti-corrosion coating layer, or a leak detection and monitoring system (LDMS), or a combination thereof; b) polyurethane foam insulation; and c) external polyethylene jacket. 1.3 Applicability This Standard covers spray-applied or moulded polyurethane foam insulation coating systems. 1.4 Exclusions This Standard does not cover material requirements for steel pipe and cryogenic applications. 1.5 Terminology In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.