This standard ( Part XXVII ) lays down the procedure for determin-ing the total soluble sulphate content of soils by: (a) precipitation method, (b) volumetric method, and (c) colorimetric or turbidimetric method.
IS 2720 Pt.27-1977 history
1978IS 2720 Pt.27-1977 Soil Test Methods Part XXX Determination of Total Soluble Sulfate