ICS 13.060.60                         CHD 36

Revised Standard from Last Update.

1 SCOPE

This standard (Part 4) prescribes the following methods of test for the determination of colour:

a) Platinum cobalt (visual comparison method),

b) Spectrophotometric - Single wavelength method, and

c) Spectrophotometric - Multi wavelength method.

2 REFERENCES

The following Indian Standards contains provisions which through reference in this text, constitutes provision 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 standard indicated below:

265 : 1993 Hydrochloric acid

266 : 1993 Sulphuric acid

376 : 1986 Sodium hydroxide, analytical reagent

1070 : 1992 Reagent grade water