GB/T 3922-2013Textiles -- Tests for colour fastness -- Colour fastness to perspiration (English PDF)

7568.1 - GB/T 7568.7;

— Add the allowable tolerance for the pressure of test device;

— Add the second and third paragraphs in 4.1;

— The requirements of "no ventilating device" are deleted;

— Chapter 6 "Test Solution Preparation" of the original standard is integrated into

Chapter 4; and the chapter and article numbers thereafter are extended

accordingly;

— Distilled water used for test solution preparation is changed into Grade 3 water;

— Add the allowable tolerance of pH value of test solution;

— Series numbers of articles in Chapter 4 are adjusted; add 4.8 - 4.13;

— Add the note in 6.1;

— Add the position and schematic diagram of composite specimens in 6.2;

— Add the second and the optional assessment method (instrument) in 6.4;

— Test report is changed into inclusion of items; add items a), b) and f), as well as

the types of multifibre adjacent fabrics;

— Appendix A and Appendix B are deleted.

Using re-drafting method, this Standard modifies and adopts ISO 105-E04.2013

"Textiles - Tests for colour fastness - Part E04.Colour fastness to perspiration" (English

edition). Compared with ISO 105-E04.2013, the main differences in this Standard are

as follows.

— Foreword of the international standard is deleted;

— International standards in Chapter 2 "Normative References" are replaced by the

corresponding national standards and industry standards of China; GB/T 13765

is added;

— Add standard adjacent fabric hemp in Table 1;

— Reagents used in 4.3 and 4.4 are specified as chemically pure;

— Add 4.11 to 4.13;

— Preparation requirements of composite specimens of printing fabrics are added

in 5.1.

This standard was proposed by China National Textile and Apparel Council.

This Standard shall be under the jurisdiction of the Basic Standard Subcommittee of

Technical Committee 209 on Textiles of Standardization Administration of China

(SAC/TC 209/SC 1).

Drafting organizations of this Standard. Shanghai Textile Industry Institute of Technical

Supervision, Standardization Research Institute of Textile Industry, Shanghai Wool &

Jute Textile Research Institute and Shanghai Silk Group Co., Ltd.

Chief drafting staffs of this Standard. Chen Xiaocheng, Liu Yunjin, Si Ying, Wang

Jiqiang, and Zhu Yicheng.

The historical editions replaced by this Standard are as follows.

— GB/T 3922-1983, GB/T 3922-1995.

Textiles - Tests for Colour Fastness –

Colour Fastness to Perspiration

5.5 (±0.2) (4.4). Then test it in a separate pre-heated test device.

Note. Up to 10 test specimens, each separated from the next by one plate, can be tested in

one test device simultaneously. If less than 10 specimens are prepared, all 11 plates must still

be used to maintain the correct nominal pressure.

Open out each composite specimen (by breaking the stitching except on one of

the shorter sides, if necessary). Dry it by hanging it in air at a temperature not

In many cases of cellulosic fibres dyed with direct dyes containing copper, or after

treatment with copper salts, the prescribed tests and natural perspiration bring about

a removal of copper from the dyeings.