IS 6092 : Part 3 : Sec 2 : 2004 Methods of Sampling and Test for Fertilizers - Part 3 : Determination of Phosphorus - Section 2 : Test Methods Not Covered Under Dual Numbe

1 Scope

This standard (Part 3/Sec 2) prescribes methods for testing ofphosphorus in its various forms in fertilizers, includingfertilizer mixtures. The standard covers methods for which nocorresponding International Standard is presently available.

2 References

IS 170 : 1986 Specification for acetone

IS 264 : 1976 Nitric acid

IS 265 : 1993 Hydrochloric acid

IS 266 : 1993 Sulphuric acid

IS 1070 : 1992 Reagent grade water - Specification

IS 6092 Methods of sampling and test for fertilizers

Part 1 : 1985 Sampling

Part 3 : Sec 4 : 2004 Determination of phosphorus, Section 4 Quinoline phosphomolybdate gravimetric method