标准号:IS 3204-1978
发布日期:1979/1/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1 This standard prescribes the requirements and the methods of sampling and test for limestone for chemical industry. It also covers sea-shells and calcite, a crystalline form of naturally occurring calcium carbonate.1.1.1 This standard does not cover limestone for building, agricultural, metallurgical, glass and ceramic industries.