Reaffirmed 2019

1. Scope

This standard prescribes the requirements and methods of sam pling and test for hydroquinone, photographic grade.

2. References

The Indian Standards listed below contain provisions wh ich th rough reference in th is text, constitute provision of this standard. At the time of publication, the ed itions indicated were valid. All standards are subject to revision and pm1ies to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards:

264:1976 Nitric -acid (second revision)

265:1993 Hydrochloric acid (fourth revision)

266: 1993 Sulphuric acid (third revision)

1070:1992 Water for general laboratory use (third revision)

4905: 1968 Methods for random sampling