tender for procurement of 200 mt hydrochloric acid and 50 mt caustic soda flakes for chemical laboratory, btps. , hcl, purity:30-33% sp. gr.-1.14-1.15 hydrochloric acid (hcl), purity/concentration: 30 to 33% specific gravity: 1.14 1.15 at 30c is: 265/1993 (revised) additional data: as per is: 265 -1993 (revised) or latest revision, (if any) , caustic soda flackes # additional data: 1)rayon grade conforming to is 252:1991 or latest revision, (if any), naoh content: as naoh 99.5% (min) by mass on dry basis and sodium carbonate as na2co3 0.4% (max) by mass. 2) material should be duly packed in 50/25 kg hdpe bags with internal polythene lining containing the name of manufacturer and date of manufacturing, etc.