GB/T 31586.2-2015Corrosion protection of steel structures by protective paint systems -- Assessment of, and acceptance criteria for, the adhesion/cohesion (fracture strength) of a coating -- Part 2: Cress-cut testing and X-cut testing (English PDF)
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Issued by
General Administration of Quality Supervision, Inspection and Quarantine
Level / Type
National · Recommended
Issue date
July 3, 2015
Implementation date
February 1, 2016
Scope
GB/T 31586.2-2015 (Corrosion protection of steel structures by protective paint systems -- Assessment of, and acceptance criteria for, the adhesion/cohesion (fracture strength) of a coating -- Part 2: Cress-cut testing and X-cut testing) is available as an English-translated PDF.
GB/T 31586.2-2015 is the Chinese standard "Corrosion protection of steel structures by protective paint systems -- Assessment of, and acceptance criteria for, the adhesion/cohesion (fracture strength) of a coating -- Part 2: Cress-cut testing and X-cut testing".
Its scope clause reads: This Part of GB/T 31586 specifies procedures for rating the resistance of coating systems when a cut in the form of a right-angle lattice pattern (cross- cut) or in the form of an X (X-cut) is made into the coating, penetrating through to the substrate.
This Part is only applicable if the cross-cut or X-cut test method is specified, together with the rating from the appropriate rating scale. NOTE The characteristics of the coating can make the assessment of the result of a cross-cut or X-cut test difficult.
This Part also specifies suitable equipment and defines inspection areas, sampling plans and acceptance/rejection criteria. This Part does not specify ratings for particular coating systems.
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Document preview — GB/T 31586.2-2015
National Standard of the People's Republic of China
- ICS
- 87.040
- Classification
- G 50
Issued by: General Administration of Quality Supervision, Inspection and Quarantine
Contents
- Foreword3
- 1 Scope4
- 2 Normative references4
- 3 Terms and definitions5
- 4 Principle6
- 5 Apparatus and materials7
- 6 Procedure7
- 7 Expression of results11
- 8 Acceptance criteria11
- 9 Test report11
- Annex A13
- Bibliography14
1 Scope
This Part of GB/T 31586 specifies procedures for rating the resistance of coating systems when a cut in the form of a right-angle lattice pattern (cross- cut) or in the form of an X (X-cut) is made into the coating, penetrating through to the substrate.
This Part is only applicable if the cross-cut or X-cut test method is specified, together with the rating from the appropriate rating scale.
NOTE The characteristics of the coating can make the assessment of the result of a cross-cut or X-cut test difficult.
This Part also specifies suitable equipment and defines inspection areas, sampling plans and acceptance/rejection criteria.
This Part does not specify ratings for particular coating systems.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 2409.2006 Paints and varnishes - Cross-cut test
ISO 12944-7 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 7. Execution and supervision of paint work
ISO 12944-8 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 8. Development of specifications for new work and maintenance
ISO 19840 Paints and varnishes - Corrosion protection of steel structures
GB/T 31415-2015 | GB/T 31416-2015 | GB/T 31586.1-2015 | GB/T 31591-2015 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.
Referenced standards
Normative references
ISO 2409.2006 · ISO 12944 · ISO 19840
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