| The usual tests carried out for cement are for chemical and physical requirements. They are given in relevant Indian Standards. IS 4031 (different parts) and IS 4032. The chemical standards gives permissible limits for insoluble residue, loss of ignition and other compounds and impurities like Magnesium Oxide, Sulphate, etc. The physical requirements are for fineness, soundness, setting time and compressive strength. These are mostly conducted at a laboratory. A field engineer is advised to purchase a reputed brand of cement from an authorized dealer, and ask for the test certificate. He can conduct a few field tests at the site itself for ascertaining the quality of cement.