标准号:IS 997-1973
发布日期:1973/7/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:This standard prescribes requirements and methods of sampling and test for limestone and dolomite for glass industry for making colourless glass. Inferior grades of the material containing higher percentage of iron and used for making certain types of coloured glasses are not covered in this standard.