GB/T 31586.1-2015 PDF English
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Corrosion protection of steel structures by protective paint systems -- Assessment of, and acceptance criteria for, the adhesion/cohesion (fracture strength) of a coating -- Part 1: Pull-off testing
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GB/T 31586.1-2015: PDF in English (GBT 31586.1-2015) GB/T 31586.1-2015
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 87.040
G 50
GB/T 31586.1-2015 / ISO 16276-1.2007
Corrosion protection of steel structures by protective
paint systems - Assessment of, and acceptance
criteria for, the adhesion / cohesion (fracture strength)
of a coating - Part 1. Pull-off testing
(ISO 16276-1.2007, IDT)
ISSUED ON. JUNE 2, 2015
IMPLEMENTED ON. JANUARY 1, 2016
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration Committee.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 Principle... 6
5 Apparatus and materials ... 6
6 Procedure ... 6
7 Expression of results ... 12
8 Acceptance criteria ... 13
9 Test report ... 13
Bibliography ... 15
Foreword
GB/T 31586 Corrosion protection of steel structures by protective paint systems
- Assessment of, and acceptance criteria for, the adhesion/cohesion (fracture
strength) of a coating consists of the following two parts.
- Part 1. Pull-off testing;
- Part 2. Cross-cut testing and X-cut testing.
This Part is the first part of GB/T 31586.
This Part was drafted in accordance with the rules given in GB/T 1.1-2009.
This Part uses translation method and identically adopts ISO 16276-1.2007
Corrosion protection of steel structures by protective paint systems -
Assessment of, and acceptance criteria for, the adhesion/cohesion (fracture
strength) of a coating - Part 1. Pull-off testing.
The Chinese documents which have consistency with the international
normative reference in this Part are as follows.
- GB/T 5210-2006 Paints and varnishes - Pull-off test for adhesion (ISO
4624.2002, IDT)
- GB/T 30790.7-2014 Paints and varnishes - Corrosion protection of steel
structures by protective paint systems - Part 7. Execution and supervision
of paint work (ISO 12944-7.1998, MOD)
- GB/T 30790.8-2014 Paints and varnishes - Corrosion protection of steel
structures by protective paint systems - Part 8. Development of
specification for new work and maintenance (ISO 12944-8.1998, MOD)
This Part was proposed by China Petroleum and Chemical Industry Federation.
This Part shall be under the jurisdiction of National Technical Committee on
Paints and Pigments of Standardization Administration of China (SAC/TC 5).
The drafting organizations of this Part. CNOOC Changzhou Paint and
Chemicals Research Institute Co., Ltd., Nanjing Product Quality Supervision
and Inspection Institute, Guangzhou Synthetic Material Research Institute Co.,
Ltd., AVIC Bermuda New Material Technology Engineering Co., Ltd., Zhejiang
Yutong New Material Co., Ltd., Zhejiang Tianyu Group Paint Co., Ltd., Shanghai
Jinlitai Chemical Industry Co., Ltd., Dongguan Daxing Chemical Co., Ltd..
Main drafters of this Part. Peng Jufang, Liang Zhi, Li Xin, Ji Junhong, Yang
Zhenbo, Liang Xinfang, Yao Shengming, Hang Lailai, Yang Jiedan.
Corrosion protection of steel structures by protective
paint systems - Assessment of, and acceptance
criteria for, the adhesion / cohesion (fracture strength)
of a coating - Part 1. Pull-off testing
1 Scope
This Part of GB/T 31586 specifies procedures for assessing the fracture
strength of a protective paint coating of any thickness on a steel substrate of
thickness not less than 10 mm. The procedures given in this Part of GB/T 31586
are based on methods used with different types of pull-off test equipment. The
results obtained using such different types of equipment are not comparable.
NOTE 1 Substrates of less than 10 mm in thickness can be tested if they are
strengthened by the sandwich technique (see ISO 4624) or by the nature of the structure
(e.g. I-beam or backing-plate). Otherwise, test panels with a thickness of at least 10 mm
coated in the same way as the structure can be used, or the method specified GB/T
31586.2 can be used.
This Part is only applicable if a fracture strength value is specified, together with the type
of test equipment and the manufacturer of the equipment. Usually, this information is
included in contract documentation.
NOTE 2 A value for the fracture strength is only meaningful if the requirements
concerning the ambient conditions (see 6.4.2) are met.
This Part also specifies suitable equipment and defines inspection areas,
sampling plans and acceptance/rejection criteria.
It does not give any values of the fracture strength of different protective paint
coatings.
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.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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