Revised Standard from Last Update.

1. SCOPE

This standard prescribes a method for evaluating strength and shade of acid dyes (level-dyeing acid dyes, acid-milling dyes, neutral-dyeing acid dyes, l : 1 and 2 : 1 metal complex acid dyes ) by dyeing test. This standard does not include automated instrumental method.

2. REFERENCES

The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.

255 : 1982 Specification for sodium sulphate, anhydrous (Technical grade) (second revision)

266 : 1993 Sulphuric acid – Specification (third revision)

695 : 2020 Acetic acid – Specification (fourth revision)

1070 : 1992 Reagent grade water – Specification (third revision)