Revised Standard from Last Update.

1. SCOPE

This standard covers the requirements of by-product gypsum suitable for construction.

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 agreement based on this standard are encouraged to investigate the possibility of applying the most recent editions of these standards:

IS 1288 : 1982 Methods of test for mineral gypsum (second revision)

IS 2411 : 1963 Methods of chemical analysis of fluorspar (fluorite)

IS 2720 Methods of test for soils:

(Part 22) : 1972 Determination of organic matter (first revision)

(Part 26) : 1987 Determination of pH value (second revision)

IS 4879 : 2023 Method of sub-division of gross sample of powder used for detemination of particle size

IS 6092 (Part 3/Sec 2) : 2004 Method of sampling and test for fertilizers: Part 3 Determination of phosphorus, Section 2 Test methods not covered under dual number standards (second revision)

IS 6361 : 1971 Methods of colorimetric determination of phosphorus

IS 9497 : 1980 Method for determination of sodium and potassium (flame photometric)

IS 10170 : 1982 Specification for by-product gypsum