Z245.20-06/Z245.21-06

External fusion bond epoxy coating for steel pipe/ External polyethylene coating for pipe

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Update No. 2

Z245.20-06/Z245.21-06

September 2008

Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit www.ShopCSA.ca for information about the CSA Standards Update Service.

Title: External fusion bond epoxy coating for steel pipe/External polyethylene coating for pipe — originally published December 2006

Revisions issued: Update No. 1 — June 2007

If you are missing any updates, please contact CSA Information Products Sales or visit www.ShopCSA.ca.

The following revisions have been formally approved and are marked by the symbol delta (Δ) in the margin on the attached replacement pages:

CSA Z245.20-06/Z245.21-06 originally consisted of 90 pages (xvi preliminary and 74 text), each dated

December 2006. It now consists of the following pages:

• Update your copy by inserting these revised pages.

• Keep the pages you remove for reference.

12.10.4 Report 25

1. Flexibility of the coating 26

   1. Equipment 26

   2. Test specimens 26

   3. Procedure 26

   4. Report 27

2. Impact resistance of the coating 27

   1. Equipment 27

   2. Test specimens 27

   3. Procedure 27

   4. Report 27

3. Cathodic disbondment of strained coating 28

   1. Equipment 28

   2. Test specimens 28

   3. Procedure 28

   4. Report 28

4. Adhesion of the coating 28

   1. Equipment 28

   2. Test specimens 28

   3. Procedure 29

   4. Report 29

5. Gouge resistance of coating 29

   1. General 29

   2. Equipment 29

   3. Test specimens 30

   4. Procedure 30

   5. Report 30

6. Surface roughness measurement 31

   1. Equipment 31

   2. Procedure 31

   3. Report 31

Tables

1. — Epoxy powder properties for Systems 1A and 1B 31

2. — Qualification test requirements for Systems 1A and 1B 32

3. — Laboratory coating test requirements for Systems 1A and 1B 33

4. — Production coating test requirements for Systems 1A and 1B 33

5. — Epoxy powder properties for Systems 2A, 2B, 2C, and 3 34

6. — Qualification test requirements for Systems 2A, 2B, 2C, and 3 34

7. — Laboratory coating test requirements for Systems 2A, 2B, 2C, and 3 35

8. — Production coating test requirements for Systems 2A, 2B, 2C, and 3 35

Figures

1. — Draw-down tool 36

2. — Coated plate configuration 36

3. — Examples of thermal scans on epoxy powder 37

4. — Examples of thermal scans on coating 37

5. — Examples of radial cuts through the coating 38

6. — Examples of cross-section porosity 38

7. — Examples of interface porosity 39

8. — Determination of sample thickness flexibility test (end view) 39

9. — Test specimen — Cathodic disbondment of strained coating test 40

   
   

   September 2008

   (Replaces p. v, June 2007) v

   Z245.21-06, External polyethylene coating for pipe

   1. Scope 43

      
      

   2. Reference publications 43

      
      

   3. Definitions 45

      
      

   4. General requirements 46

      1. Product ordering requirements 46

         1. Standard requirements 46

         2. Optional requirements 46

      2. Rounding procedure 46

      3. Requirements for quality 46

      4. Compliance 46

         
         

   5. Materials 46

      1. Pipe 46

      2. Manufacturer’s documentation 47

      3. Primer 47

         1. Liquid primer 47

         2. Powdered primer 47

      4. Adhesive 47

      5. Polyethylene 47

      6. Packaging 47

         
         

   6. Coating application 47

      1. Coating qualification 47

         1. General 47

Δ 6.1.2 Testing requirements for Systems A1, A2, B1, and B2 48

1. Polyethylene evaluation for Systems A1, A2, and B1 48

2. Polyethylene evaluation for System B2 48

1. Production application practices and equipment 48

   1. General 48

   2. Surface preparation 48

   3. Application 48

   4. End finish 49

7 Production, inspection, and testing 49

1. Markings 54

   1. General 54

   2. Required markings 54

September 2008

vi (Replaces p. vi, June 2007)

Δ 10 Handling and storage 54A

Δ 10.1 Handling 54A

10.2 Storage 55

1. Test reports and certificates of compliance 55

   
   

2. Test procedures 55

   1. Viscosity 55

      1. Equipment 55

      2. Procedure 55

      3. Report 56

   2. Flow 56

      1. Equipment 56

      2. Procedure 56

      3. Report 57

   3. Cathodic disbondment of the coating 57

      1. Equipment 57

      2. Test specimens 57

      3. Procedure 58

      4. Report 58

   4. Peel adhesion (constant rate of peel) 59

      1. Equipment 59

      2. Test specimens 59

      3. Test parameters 59

      4. Procedure 59

      5. Calculation 60

      6. Report 60

   5. Peel adhesion (hanging mass) 60

      1. Equipment 60

      2. Test specimens 60

      3. Test parameters 61

      4. Procedure 61

      5. Report 62

   6. Heat aging 62

      1. Equipment 62

      2. Test specimens 62

      3. Procedure 62

      4. Report 62

   7. Gouge resistance 63

Tables

1. — Coating qualification test requirements 63

2. — Adhesive requirements 64

3. — Virgin polyethylene resin requirements 65

4. — Liquid epoxy primer requirements 66

5. — Polyethylene qualification test requirements 66

6. — Coating thickness requirements 67

7. — Primer requirements 68

8. — Adhesive requirements for incoming materials 69

9. — Polyethylene requirements for incoming materials 69

10. — Production coating test requirements 70

September 2008

(Replaces p. vii, December 2006)

vii

Figures

1. — Flow test apparatus 71

2. — Examples of radial cuts through the coating 71

3. — Peeling apparatus for pipe smaller than 200 mm OD 72

4. — Peeling apparatus for pipe 200 mm OD or larger 73

5. — Hanging mass test set-up (end view) 74

September 2008

viii (Replaces p. viii, December 2006)

© Canadian Standards Association External fusion bond epoxy coating for steel pipe

Z245.20-06

External fusion bond epoxy coating for steel pipe

1. Scope

   
   

   1.1

   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

   This Standard covers the following coating systems:

   1. System 1A: single-layer FBE with a glass transition temperature of 110 °C or less;

   2. System 1B: single-layer FBE with a glass transition temperature greater than 110 °C;

   3. System 2A: two-layer FBE with a corrosion coating and a protective overcoat;

   4. System 2B: two-layer FBE with a corrosion coating and an abrasion-resistant overcoat;

   5. System 2C: two-layer FBE with a corrosion coating and an anti-slip overcoat; and

   6. System 3: three-layer FBE with an anti-slip overcoat applied over a corrosion coating and a protective overcoat.

   
   

   1.3

   In CSA Standards, “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; “may” is used to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability. 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.

   
   

2. Reference publications

This Standard refers to the following publications, and where such reference is made, it shall be to the edition listed below, unless the user finds it more appropriate to use newer or amended editions of such publications.

CSA (Canadian Standards Association)

CAN/CSA-ISO 9001-00 (R2005)

Quality management systems — Requirements

ASTM International (American Society for Testing and Materials)

E 29-06a

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

December 2006 3