IS 4505 : 2015 : Sodium Formaldehyde Sulphoxylate - Specification

ICS 71.060.50 CHD 1

Reaffirmed 2020

1 SCOPE

This standard prescribes the requirements and the methods of sampling and tests for sodium formaldehyde sulphoxylate dihydrate.

2 REFERENCES

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

264 : 2005 Nitric acid — Specification (third revision)

265 : 1993 Hydrochloric acid (fourth revision)

266 : 1993 Sulphuric acid (third revision)

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

2124 : 2000 Sodium bicarbonate - Specification (second revision)

2316 : 1990 Methods of preparation of standard solutions for colorimetric and volumetric analysis (second revision)

12074 : 1987 Method for determination of lead by atomic absorption spectrophotometer