Revised Standard from Last Update.

1. SCOPE

1.1 This standard prescribes the requirements and the methods of sampling and test for zinc sulphate heptahydrate, agricultural grade.

2. REFERENCES

The following standards 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 standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below:

1070 : 1992 Reagent grade water (third revision)

2711 : 1979 Direct reading pH metres (second revision)

5985 : 1985 Code of practice for handling and storage of bagged fertilizers (first revision)

6092 Methods of sampling and test for fertilizers:

(Part 1) : 1985 Sampling

(Part 5) : 1985 Determination of secondary elements and micronutrients (first revision)

(Part 6) : 1985 Determination of moisture and impurities

7017 : 1973 Method of colorimetric determination of traces of heavy metals by dithizone

7212 : 1974 Methods of determination of copper

7406 (Part 1) : 1984 Specification for jute bags for packing fertilizers: Part 1 Laminated bags manufactured from 407g/m2: 85 × 39 Tarpaulin fabric

9755 : 2016 High Density Polyethylene (HDPE)/Polypropylene (PP) woven sacks for packing fertilizers - Specification (fifth revision)