QB/T 2885-2007 English PDF (QBT2885-2007)

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QB/T 2885-2007: Footwear. Test methods for outsoles. Flex resistance
QB/T 2885-2007
LIGHT INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 61.060
Classification number: Y78
Record number: 22131-2007
Footwear - Test methods for outsoles - Flex
resistance
(ISO 17707:2005, IDT)
ISSUED ON: OCTOBER 08, 2007
IMPLEMENTED ON: MARCH 01, 2008
Issued by: National Development and Reform Commission
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 4 
4 Test apparatus and material ... 5 
5 Sampling and conditioning ... 7 
6 Rigidity test method ... 8 
7 Flex resistance test method ... 9 
8 Test report ... 10 
Bibliography ... 11 
Foreword
This Standard is identical to the international standard ISO 17707:2005
“Footwear - Test methods for outsoles - Flex resistance” (English edition).
For ease of use, this Standard has made the following editorial changes:
a) CHANGE the word “this European Standard” to “this Standard”;
b) Replace the comma “,” as a decimal point with a decimal point “.”;
c) Delete the “Foreword” of the international standard;
d) Delete the “Contents” of the international standard.
This Standard was proposed by China National Light Industry Council.
This Standard shall be under the jurisdiction of National Technical Committee
305 on Footwear of Standardization Administration of China.
Drafting organization of this Standard: China Leather and Footwear Research
Institute Co., Ltd.
Main drafters of this Standard: Yan Huaidao, Qi Xiaoxia, Zhang Weijuan, Yang
Zhimin.
This Standard is issued for the first-time.
Footwear - Test methods for outsoles - Flex resistance
1 Scope
This Standard specifies a method for determining the flex resistance of outsoles.
This method is intended to assess the effect of outsole materials and outsole
patterns on cut growth. This method is applied to outsoles that, in accordance
with the test mentioned in Clause 6, have a maximum longitudinal rigidity of 30
N.
Note: The method described in this Standard is based on the method for the determination
of the flex resistance for outsoles described in EN ISO 20344.
2 Normative references
The following documents contain provisions which, through reference in this
Standard, constitute provisions of this Standard. For the dated references, their
subsequent amendments (excluding corrections) or revisions do not apply to
this Standard. However, the parties who enter into agreement based on this
Standard are encouraged to investigate whether the latest editions of these
documents are applicable. For undated reference documents, the latest
editions apply to this Standard.
ISO 18454 Footwear - Standard atmospheres for conditioning and testing of
footwear and components for footwear1)
EN ISO 534 Paper and board - Determination of thickness, density and
specific volume (ISO 534:2005)
3 Terms and definitions
For the purposes of this Standard, the following term and definition apply.
3.1 Flex resistance
Number of flexes that cause cut growth and/or initiation of cracks in the outsoles.
1) It will soon be published as a national standard.