1 Scope
This standard specifies a method for assessing the change in physical appearance of leather, caused by spotting with water.
This standard is applicable to all kinds of leather.
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 to, 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 edition of the normative document referred to applies.
GB/T 250 Gray scale for assessing change in colour (GB/T 250-2008, ISO 105-A02:1993, IDT)
GB/T 6682 Water for analytical laboratory use — Specification and test methods (GB/T 6682-2008, ISO 3696:1987, MOD)
FZ/T 01024 Instrumental assessment of change in colour for determination of grey scale rating (FZ/T 01024-1993, neq ISO 105-A05:1996)
QB/T 2706 Leather — Chemical physical and mechanical and fastness tests — Sampling location (QB/T 2706-2005, ISO 2418:2002, MOD)
QB/T 2707 Leather — Physical and mechanical tests — Sample preparation and conditioning (QB/T 2707-2005, ISO 2419:2002, MOD)
3 Principle
