GB/T 9279.1-2015 PDF English
US$165.00 · In stock · Download in 9 secondsGB/T 9279.1-2015: Paints and varnishes -- Determination of scratch resistance -- Part 1: Constant-loading method Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB/T 9279.1: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 9279.1-2015 | English | 165 |
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Paints and varnishes -- Determination of scratch resistance -- Part 1: Constant-loading method
| Valid |
| GB/T 9279-2007 | English | 359 |
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3 days
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Paints and varnishes -- Scratch test
| Obsolete |
| GB/T 9279-1988 | English | 199 |
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2 days
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Paints and varnishes--Scratch test
| Obsolete |
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GB/T 9279.1-2015: Paints and varnishes -- Determination of scratch resistance -- Part 1: Constant-loading method
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT9279.1-2015
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 87.040
G 50
GB/T 9279.1-2015 / ISO 1518-1.2011
Replacing GB/T 9279-2007
Paints and varnishes - Determination of scratch resistance -
Part 1.Constant-loading method
(ISO 1518-1.2011, IDT)
Issued on: JUNE 02, 2015
Implemented on: JANUARY 01, 2016
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
National Standardization Administration.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Principle... 5
4 Instruments... 6
5 Sampling... 8
6 Test plate... 8
7 Procedure... 8
8 Precision... 9
9 Test report... 10
References... 12
Foreword
GB/T 9279 "Paints and varnishes - Determination of scratch resistance" is divided into
two parts.
- Part 1.Constant-loading method;
- Part 2.Variable-loading method.
This Part is Part 1 of GB/T 9279.
This Part was drafted in accordance with the rules given in GB/T 1.1-2009.
This Part replaces GB/T 9279-2007 "Paints and varnishes - Scratch test". Compared
with GB/T 9279-2007, the main technical changes are as follows.
- ADD the principle part (see Chapter 3);
- ADD two versions of test instruments (see 4.1);
- MODIFY the minimum length of the scratch, from 60 mm to 40 mm (see 4.1; 4.1
of the 2007 edition);
- ADD the precision part (see Chapter 8);
- CANCEL the Appendix A and Appendix B (see Appendix A and Appendix B of the
2007 edition).
This Part uses the translation method to identically adopt the international standard ISO
1518-1.2011 "Paints and varnishes - Determination of scratch resistance - Part 1.
Constant-loading method".
The Chinese documents that have a consistent correspondence with the international
documents normatively referenced in this Part are as follows.
- GB/T 3186-2006 Paints, varnishes and raw materials for paints and varnishes -
Sampling (ISO 15528.2000, IDT);
- GB/T 9271-2008 Paints and varnishes standard panels for testing (ISO 1514.2004,
MOD);
- GB/T 13452.2-2008 Paints and varnishes - Determination of film thickness (ISO
2808.2007, IDT);
- GB/T 20777-2006 Paints and varnishes - Examination and preparation of samples
for testing (ISO 1513.1992, IDT).
This Part was proposed by China Petroleum and Chemical Industry Federation.
Paints and varnishes - Determination of scratch resistance -
Part 1.Constant-loading method
1 Scope
This Part of GB/T 9279 specifies a test method for determining the resistance of a single
coating or a composite coating system of a paint, varnish or related product to
scratching by a stylus loaded with a specified load under specified conditions. The
stylus shall penetrate the substrate, but the composite coating system is an exception.
In this case, the stylus can penetrate the substrate or the intermediate coating.
This test method can be carried out as follows.
- As a "pass/fail" test, i.e., a specified load is applied to the stylus to assess
compliance with a specific specification;
- By gradually increasing the load on the stylus to determine the minimum load at
which the coating is penetrated.
2 Normative references
The following documents are essential to the application of this document. For the dated
documents, only the versions with the dates indicated are applicable to this document;
for the undated documents, only the latest version (including all the amendments) is
applicable to this standard.
ISO 1513 Paints and varnishes - Examination and preparation of test samples
ISO 1514 Paints and varnishes - Standard panels for testing
ISO 2808 Paints and varnishes - Determination of film thickness
ISO 15528 Paints, varnishes and raw materials for paints and varnishes - Sampling
3 Principle
A stylus with a specified load is applied across the coating at a constant speed. The
scratch mark is examined to determine whether the coating has been penetrated to a
specified extent for a single specified test load (a "pass/fail" test); or to determine the
minimum test load required to penetrate the coating.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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