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ISO 2521:1974

Tritolyl phosphate for industrial use — Determination of acidity to phenol red — Volumetric method ISO 2521:1974

Publication date:   Apr 1, 1974

95.99   Withdrawal of Standard   May 27, 2002

General information

95.99   Withdrawal of Standard   May 27, 2002

ISO

ISO/TC 47 Chemistry

International Standard

71.080.70   Esters

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Scope

Specifies the titration of any acidity present in an ethanolic solution with standard volumetric sodium hydoxide solution in the presence of phenol red as indicator. The end point of the titration corresponds to the formation of the salt Na2 HPO4 .

Life cycle

NOW

WITHDRAWN
ISO 2521:1974
95.99 Withdrawal of Standard
May 27, 2002




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