00330nam a2200133Ia 4500008004100000041000800041082001400049100003000063245001900093250000800112260004700120300000700167650002200174230711s9999||||xx |||||||||||||| ||und||  aENG  a624bBU-I  aBureau of Indian Standard 0aIS : 1498 1970  a1st  c2000aNew DelhibBureau of Indian Standard  a24  aCivil Engineering