supply of dry silica sand for locomotive with specification.dry silica sand for locomotive with specification.,dry silica sand for locomotive with specification - clean silica sand, free from clay, loams, mica and other foreign material as per specification no. m-916-51 (revised 1994), main fraction grain size ( 2mm to 600microns size) must be more than 40%, 600microns to 300 microns should be 40-50%, 300microns to 180microns should be 10-20% and below 180micron s should be not more than 05% , duly sieved, dried and packed in clean good quality nylon gunny bag of size 19inchx15inch, (weighing 25gm per bag) with polythene lamination (of thic kness not less than 25 microns) containing 10 kg sand and properly sealed to avoid water entry and should be no leakage of sand through stitching holes. [ warranty period: 30 mont hs after the date of delivery ] ]