00489nam a2200169Ia 4500008004100000041000800041082001400049100003000063245001800093250000800111260004700119300000700166650002700173942000700200952009700207999001500304230711s9999||||xx |||||||||||||| ||und||  aENG  a621bBU-I  aBureau of Indian Standard 0aIS : 325 1978  a1st  c1978aNew DelhibBureau of Indian Standard  a33  aElectrical Engineering  cBK  001040708RaMCLbMCLd0000-00-00l0o621 BU-Ip12326r2023-08-17 14:43:38w2023-08-17yBK  c8366d8366