Supply of Ferric Alum GR-IV under SD-I ,PHED,APWD,Prothrapur

Supplying of Ferric Alum Grade-IV in solid from for treatment of water intended for drinking confirming to IS:299:2012 (Fifth Revision) having following requirement: 1. Insoluble matter, percent by mass, Max-0.2 2. Soluble iron compound (as Fe), percent by mass, Max-0.04 3. Water soluble aluminium compound (as AL2 O3), percent by mass, Min-16 4. pH (5% of aqueous solution), Min-2.7 5. Free acidity (as H2SO4), Basicity (as AL2O3), percent by mass, Max-0.5 6. Lead (as Pb), PPM, Max-20 7. Arsenic (as AS203), PPM, Max-4 8. Mercury (as Hg), PPM, Max-0.4 9. Manganese (as Mn), PPM, Max-20 10. Chromium (as Cr), PPM, Max-20 11. Cadmium (as Cd), PPM, Max-4 12. Selenium (as Se), PPM, Max-4 13. Organic impurities: a) Phenolic compounds (as C6H5OH), PPM, Max-0.4 b) Aniomic detergents (as MBAS), PPM, Max-80 Materials to be supplied at water treatment plant, Lambaline.