supply of high silica locomotive sand (90% minimum [high silica locomotive sand (90% minimum), free from clay, salt, loams,mica and other foreign materials conforming to aar spec. no. m-916-51(revised 1994) duly cleaned, sieved,dried and packed in 10 kg capacity good quality, non-tearable during standard handling, polythene bags] , high silica locomotive sand (90% minimum), free from clay, salt, loams,mica and other foreign materials co nforming to aar spec. no. m-916-51(revised 1994) duly cleaned, sieved,dried and packed in 10 kg capacity good quality, non-tearable during standard handling, polythene bags [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]