Page No - NABL India

Selenium (as Se) IS 15303-2003 Reaffirmed.2009 0.005 mg/l to 1mg/l Selenium (as Se) IS:3025 (Part 56)-2003 eaffirmed. 2014 (First revision) 0.005 mg/l to 1mg/l Sulphate (as SO4) IS:3025 (Part 24)- 1986 Reaffirmed 2014(First revision) 1 mg/l to 1500mg/l ................
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