supply of high silica locomotive sand (90%minimum), free from clay, salt, loams, mica and other foreign materials conformaing to aar specn. no. m-916-51( revised 1994 )duly cleaned, sieved, dried and packed in 10 kg capacity good quality polythene bags conforming to bis : 9685/2002.high silica locomotive sand (90%minimum), free from clay, salt, loams, mica and other foreign materials conformaing to aar specn. no. m-916-51( revised 1994 )duly cleaned, sieved, dried and packed in 10 kg capacity good quality polythene bags conforming to bis : 9685/2002.,high silica locomotive sand (90%minimum), free from clay, salt, loams, mica and other foreig n materials conformaing to aar specn. no. m-916-51( revised 1994 )duly cleaned, sieved, dried and packed in 10 kg capacity good quality polythene bags conforming to bis : 9685/2002. specn: aar specn. no. m-916-5 1( revised 1994 ) [ warranty period: 30 months after the date of delivery ] ]