
IS 650 (1991): Specifiion for Standard Sand for Testing ...
Yerman, it was found thatthe white variety of sand available at Ennore, Madras State, was .very pure in nature and suitable for use as a standard sand. The thoroughly washed sand passing S50micron IS Sieveand r etained on 600·micron IS Sieve was observed to satisfy the require ments of standard sand as a substitute for the imported sand.