Clean Silica Sand,Free From Clay,Loams,Mica And Other Foreign Material,As Per Specificati On No.Aar M-916-51 To Be Used On All Classes Of Diesel And Electric Locomotive Packing In 30 Kgs Wate R Proof Polythene Bags As Per Rdso Letter No. Sd.Dfm.A.8 Dated28/29.12.2011. Specn: Sl No2-9-66, ]