This standard specifies depths for dyeing with dyestuffs 2/1, 1/3, 1/6, 1/12 and 1/26.
This standard applies for the following two conditions: (1) determination test for dye fastness and dyeing behaviour test; (2) visual assessment of dyeing depth selection.
2 Normative References
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrigendum), or revisions of, any of these publications do not apply. However, all parties coming to an agreement based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB 250 Gray Scale for Assessing Change in Colour (idt ISO 105/A02: 1993)
GB/T 3979-1997 Methods of Measuring the Colour of Materials
3 Terms and Definitions
For the purposes of this standard, the following term and definition applies.
Standard depth
A series of acknowledged depth standards and moderate depth is defined as 1/1 standard depth. The colour of the same standard depth is the same in the psychological feel so that the colour fastness can be compared on one basis. There are six standard depths, i.e. 2/1, 1/1, 1/3, 1/6, 1/12 and 1/25.
[GB/T 6687-2006, 4.5][1]
GB/T 4841.3-2006 The following standards are cited：
