IS 997 : 1973 Specification for Limestone and Dolomite for Glass Industry

1 Scope

1.1 This standard prescribes requirements and methods ofsampling and test for limestone and dolomite for glass industry formaking colorless glass.

1.1.1 Inferior grades of the material containing, higherpercentage of iron and used for making certain types of colouredglasses are not covered in this standard.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 264 : 1968Specification for nitric acid

IS 265 : 1962Specification for hydrochloric acid

IS 266 : 1961Specification for sulphuric acid

IS 296 : 1965Specification for sodium carbonate, anhydrous

IS 1070 : 1960Specification for water, distilled quality

IS 2109 : 1961Methods of sampling dolomite, limestone and other alliedmaterials