IS 7220 : 1974 Specification for Ethylenediaminetetra-acetic Acid, Pure and Technical

1 Scope

1.1 This standard prescribes the requirements and methods ofsampling and test for ethylenediaminetetra-acetic acids pure andtechnical.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 264 : 1968Specification for nitric acid

IS 265 : 1962Specification for hydrochloric acid

IS 266 : 1961Specification for sulphuric acid

IS 323 : 1959Specification for rectified spirit

IS 915 : 1958Specification for one-mark graduated flasks

IS 1070 : 1960Specification for water, distilled quality

IS 4161 : 1967Specification for Nessler cylinders

IS 4905 : 1968Methods for random sampling