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ISO 851:1976

Sodium tripolyphosphate for industrial use — Measurement of pH — Potentiometric method ISO 851:1976

Publication date:   Nov 1, 1976

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

71.060.50   Salts

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Scope

Measurement of the pH of a 10 g/l solution. Uses a pH meter fitted with a glass measuring electrode and a calomel reference electrode. Sensitivity 0.05 pH unit.

Life cycle

NOW

WITHDRAWN
ISO 851:1976
95.99 Withdrawal of Standard
May 27, 2002




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