supply of clean high silica locomotive sand (90% minimum) free from clay, salt, loams, mica and other foreign materials conforming to rdso recommended spec. no-aar m 916-51 (revised 1994 or latest). , clean high silica locomotive sand (90% minimum) free from clay, salt, loams, mica and other foreign materials conforming to rdso recommended spec. no-aar m 916-51 (revised 1994 or l atest) duly cleaned, sieved, dried & packed in 10 kg capacity waterproof good quality polythene bags conforming to bis-9685/2002 [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]