Revised Standard from Last Update.

1. SCOPE

The standard covers the requirements for scheelite (CaWO4) and wolframite [(Fe,Mn)WO4] concentrate used in the hard metal industry.

2. REFERENCES

The standard given below contain provisions which through reference in this text, constitute provision 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 edition of these standards:

IS 1387 : 1993 General requirements for the supply of metallurgical materials (second revision)