00387nam a2200133Ia 4500008004100000041000800041082001400049100003000063245007200093250000800165260004700173300000600220650002700226230711s9999||||xx |||||||||||||| ||und||  aENG  a666bBU-I  aBureau of Indian Standard 0aSI : 4031 Pt 15bMethod of physical tets for hydraluic cemnts Pt 15  a1st  c1991aNew DelhibBureau of Indian Standard  a5  aMechanical Engineering