GB/T 3903.19-2008Footwear -- Test methods for accessories: Metallic accessories -- Corrosion resistance (English PDF)

22775.2004 Footwear - Test methods for accessories. Metallic accessories -

Corrosion resistance (English version). They are exactly identical in technical

content. This Part of GB/T 3903 only makes the following editorial modifications.

a) modified "this European Standard" to "this Part of GB/T 3903" (Translator

Note. Original text in Chinese is European Standard);

b) deleted the foreword of ISO 22775.2004;

c) deleted the table of contents of ISO 22775.2004;

d) modified the density unit from "g/dm3" to "g/L".

This Part was proposed by China Light Industry Association.

This Part shall be under the jurisdiction of National Technical Committee on

Footwear of Standardization Administration of China.

The drafting organizations of this Part. China Institute of Leather and Footwear

Industry, Cornell Group Limited.

Main drafters of this Part. Zhang Weijuan, Dai Jinqing.

Footwear - Test methods for accessories.

Metallic accessories - Corrosion resistance

Warning. the user of this Part of GB/T 3903 should have practical

experience in regular laboratory. This Part does not point out all the

possible safety problems. The user shall have responsibility to take

appropriate safety and healthy measures, in accordance with relevant

regulations.

2.1 corrosion resistance

propensity of a metal surface either not to change visually due to chemical

attack by atmospheric pollution, or not to be altered due to the action of salt

water

3.1 Method 1

A test specimen is stored in a moist atmosphere containing a low concentration

of hydrogen sulphide gas for 1 h. The specimen is then assessed subjectively

for signs of discoloration.

3.2 Method 2

Cotton lawn, saturated with sodium chloride solution, is wrapped around a test

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