Tender For supply of cleaning powder packed in 600 gms containers to spec:-1.soda ash techinical light grade to is 251-1998,rev.-4 (ra-2010) 8% b y weight.2. sodium silicate solid alkaline to is 381/2024, rev.-3 powder ground to 100-150 mesh 10% by weight.3.soap powder (to be prepa red from soap laundry to is.285/1992 (ra-2011) amd-4 sept 2008 of rev.-3 type i,gr.i. shavings from the soap are to be dried in air over at 10 5 deg. c -110 deg.c for about 3 hours and then powdered. alternatively soap laundry to the above specn. in powder form may be used) 5% by weight. 4.silica powder to is 67/1998, rev.-2,(ra-2002) 50% by weight.5.soap stone powder (french chalk technical) to is; 380/78, rev. -2 (ra-2003) dry fine white powder to 100-150 mesh 27% by weight [ warranty period: 12 months after the date of delivery ]