00553nam a2200169Ia 4500008004100000041000800041082001400049100003000063245008800093250000800181260004700189300000700236650002200243942000700265952009600272999001500368230711s9999||||xx |||||||||||||| ||und|| aENG a624bBU-I aBureau of Indian Standard 0aSI : 246 1986bSpecification for sodium throsulphate,crystalline photographic garde a1st c1986aNew DelhibBureau of Indian Standard a13 aCivil Engineering cBK 001040708RaMCLbMCLd0000-00-00l0o624 BU-Ip7993r2023-08-17 14:41:39w2023-08-17yBK c8149d8149