This standard specifies Portland blast-furnace slag cement used for general construction and special construction. Classifies Portland blast-furnace slag cement into 4 types i.e. Portland blast-furnace slag cement: IS, Portland blast-furnace slag cement, moderate sulfate: IS(MS), Portland blast-furnace slag cement , high sulfate: IS(HS), and Portland blast-furnace slag cement , low heat of hydration: IS(MH). Includes prescribes materials and making, general requirements e.g. chemical properties, physics properties, packaging, mark and label, sampling and criteria for conformity and testing.