This standard ( Part 6 ) prescribes the methods for determination of moisture and impurities namely, biuret, free acidity, arsenic, calcium nitrate, fluorine, nickel, chromium and sodium in fertilizers and fertilizer mixtures.
IS 6092 Pt.6-1985 history
1985IS 6092 Pt.6-1985 Fertilizer Sampling and Testing Methods Part 6 Determination of Moisture and Impurities