Revised Standard from Last Update.

1. SCOPE

This standard prescribes the requirements and the methods of sampling and test for barytes (naturally occurring barium sulphate) and blanc fixe (the precipitated barium sulphate). The material is intended for use as extenders for paints.

2. REFERENCES

The standards given 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 standards are subject to revision, and parties to agreements based on this Indian Standard are encouraged to investigate the possibility of applying the most recent editions of these standards:

IS 33 : 1992 Inorganic pigments and extenders for paints - Methods of sampling and test (third revision)

IS 101 (Part 8/Sec 5) : 2022 Methods of sampling and test for paints varnishes and related products: Part 8 Tests for pigments and other solids, Section 5 Lead restriction test (fourth revision)

IS 265 : 2021 Hydrochloric acid - Specification (fifth revision)

IS 266 : 1993 Sulphuric acid - Specification (third revision)

IS 1070 : 2023 Reagent grade water - Specification (fourth revision)

IS 1303 : 1983 Glossary of terms relating to paints (second revision)

IS 4825 : 1982 Specification for liquid-in-glass solid-stem reference thermometers (first revision)