QB/T 2924-2021Fur-test methods for colour fastness to perspiration (English PDF)

Foreword

This document was drafted in accordance with the provisions of GB/T 1.1-2020

"Directives for standardization - Part 1: Rules for the structure and drafting of

standardizing documents".

This document is a revision of QB/T 2924-2007 "Fur - Test methods for color fastness

to perspiration".

Compared with QB/T 2924-2007, the main technical changes of this document are as

follows:

a) ADJUST and ADD reference standards in "Normative references" (see Chapter 2;

Chapter 2 of the 2007 Edition);

b) ADD "Terms and definitions" (see Chapter 3);

c) MODIFY the "Principle" (see Chapter 4; Chapter 3 of the 2007 edition);

d) ADJUST and REFINE the requirements of "Perspiration resistance tester" (see

5.1; 4.2 of the 2007 edition);

e) ADD the tolerance of artificial perspiration pH (see 5.3; 4.5 of the 2007 edition);

f) SIMPLIFY the description of adjacent fabrics (see 5.4; 4.4 of the 2007 Edition);

g) ADD and ADJUST the requirements of "Gray scale" (see 5.5 and 5.6; 4.1 of the

2007 edition);

h) ADD the "Test water", "pH meter", "Spray pot", "die knife" in "Equipment and

materials" (see 5.7 ~ 5.10);

i) REFINE the "Sampling and specimen preparation"; MODIFY the size of the

cotton standard adjacent fabrics(see Chapter 6; Chapter 5 of the 2007 edition);

j) MODIFY and REFINE the "Test steps" (see Chapter 7; Chapter 6 of the 2007

edition);

k) Add the evaluation of the specimen hair discoloration in "Result evaluation";

MODIFY the light source requirements during the evaluation (see Chapter 8;

Chapter 7 of the 2007 edition);

1) ADD the "Evaluation error" (see Chapter 9);

m) MODIFY the content of the "Test report" (see Chapter 10; Chapter 9 of the 2007

edition).

Fur - Test methods for color fastness to perspiration

1 Scope

This document describes the test method for the color fastness of fur to perspiration.

This document is applicable to the determination of the color fastness of various types

of fur to perspiration.

2 Normative references

The contents of the following documents constitute essential clauses of the text through

normative references in the text. Among them, for dated references, only the version

corresponding to that date applies to this document; for undated references, the latest

version (including all amendments) applies to this document.

GB/T 250 Textiles - Tests for color fastness - Grey scale for assessing change in

color

GB/T 251 Textiles - Tests for color fastness - Grey scale for assessing staining

GB/T 6151 Textiles - Tests for color fastness - General principles of testing

GB/T 6682 Water for analytical laboratory use - Specification and test methods

GB/T 7568.2 Textiles - Tests for color fastness - Standard adjacent fabrics - Part 2:

Cotton and viscose

QB/T 1266 Fur - Physical and mechanical tests - Sample preparation and

conditioning

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Principle

The specimen wool quilt and cotton standard adjacent fabric are fully wetted with

artificial perspiration and then tightly fitted to form a composite specimen, which is

then placed in a perspiration stain tester and kept at a specified load and temperature

for a specified time. After the perspiration and cotton standard adjacent fabric are dried,

7 Test steps