GB/T 3903.43-2008 English PDF (GBT3903.43-2008)

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GB/T 3903.43-2008: Footwear -- Test methods for uppers, lining and insocks -- Seam strength
GB/T 3903.43-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 61.060
Y 78
GB/T 3903.43-2008 / ISO 17697.2003
Footwear - Test methods for uppers, lining and
insocks - Seam strength
(ISO 17697.2003, IDT)
ISSUED ON. DECEMBER 30, 2008
IMPLEMENTED ON. SEPTEMBER 1, 2009
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Apparatus and material ... 5
5 Sampling and conditioning ... 7
6 Test method ... 11
7 Test results ... 13
8 Test report ... 14
Foreword
This Part of GB/T 3903 identically adopts the International Standard ISO 17697.2003
“Footwear - Test methods for uppers, lining and insocks - Seam strength” (English
version).
For easy use, this Part has the following editorial modifications.
a) “this International Standard” is modified into “this Part”;
b) USE the decimal point “.” to replace the comma “,” used as decimal point;
c) DELETE the foreword of the International Standard;
d) DELETE the table of content of the International Standard;
e) for the EU standards referenced in ISO 17697.2003, this Part directly reference
the corresponding national standards;
f) DELETE the annex of the International Standard;
This Part was proposed by China Light Industry Council.
This Part shall be under the jurisdiction of National Technical Committee on Footwear
of Standardization Administration of China.
Drafting organizations of this Part. China Leather and Footwear Industry Research
Institute, Putian SEMS Sports Goods Co., Ltd.
Main drafters of this Part. Zhang Weijuan, Li Guifen and Chen Wenbiao.
Footwear - Test methods for uppers, lining and
insocks - Seam strength
1 Scope
This Part of GB/T 3903 specifies two test methods for determining the seam strength
of uppers, lining or insocks, in order to assess the suitability for the end use.
This Part is applicable to various kinds of uppers, lining and insocks of footwear.
Two methods are.
- Method A. Needle perforations. For determining the force required to pull a row of
needles through an upper material, in a direction perpendicular to the row.
- Method B. Stitched seams. For determining the breaking strength of stitched
seams in shoe upper and lining materials. This method is applicable to seams cut
from shoes or made up to simulate footwear constructions.
2 Normative references
The provisions in following documents become the provisions of this Part through
reference in this Part of GB/T 3903. For dated references, the subsequent
amendments (excluding corrigendum) or revisions do not apply to this Part, however,
parties who reach an agreement based on this Part are encouraged to study if the
latest versions of these documents are applicable. For undated references, the latest
edition of the referenced document applies.
GB/T 16825.1-2008 Metafile materials - Verification of static uniaxial testing
machines - Part 1. Tension/compression testing machines - Verification and
calibration of the force-measuring system (ISO 7500-1 2004, IDT)
GB/T 22049 Footwear - Standard atmospheres for conditioning and testing of
footwear and components for footwear (GB/T 22049-2008, ISO 18454.2001, IDT)
GB/T 22050 Footwear - Sampling location, preparation and duration of conditioning
of samples and test pieces (GB/T 22050-2008, ISO 17709.2004, IDT)
3 Terms and definitions '