QB/T 2925-2007 in English

1 Scope

This standard specifies the test methods for colour fastness to light of fur.

This standard is applicable to test for colour fastness to light on various fur.

2 Normative references

The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest editions apply.

GB/T 250 Gray scale for assessing change in colour

3 Test principle

Put the specimen on a light fastness tester under the specified conditions for a certain period, and then assess its colour change by a gray scale.

4 Test instruments and materials

4.1 Light fastness tester

Foreword i
1 Scope
2 Normative references
3 Test principle
4 Test instruments and materials
5 Specimen and test part
6 Test steps
7 Result assessment
8 Test report contents