1.1 This standard lays down the procedure to be followed in collecting and preparing samples representing a lot of ferro-alloys in order to determine the chemical composition of the alloy in the lot.
1.2 For the purpose of this standard ferro-alloys have been divided into the following groups:
Group I
1. Ferrosilicon except FeSi20P15 Grade
2. Silico-chromium
3. Calcium silicon
Group II
1. Spiegeleisen
2. Ferrosilicon FeSi20P15 Grade
Group III
1. Ferromanganese
2. Silicomanganese
3. Ferrochromium ( high carbon )
4. Ferrophosphorous
Group IV
1. Ferrochromium (low carbon )
Group V
1. Ferrovanadium
2. Ferrotungsten
3. Ferrotitanium
4. Ferromolybdenum
5. Ferrozirconium
6. Ferroboron
7. Ferroniobium ( ferrocolumbium )
8. Ferronickel
Group VI
1. Metallic manganese
2. Metallic silicon
3. Metallic chromium
4. Foundry nickel
5. Misch metal
IS 1472-1977 history
1977IS 1472-1977 Method for sampling ferrous alloys for determination of chemical composition