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.
