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ISO
ISO 904:1976

ISO 904:1976

Hydrochloric acid for industrial use — Determination of total acidity — Titrimetric method

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General Information

Status : Active

Standard Type : Main

Document No : ISO 904:1976

Document Year : 1976

Pages : 2

Edition : 1

Section Volume : Chemistry (ISO/TC 47.)

ICS : Acids (71.060.30)

The principle consists in titration of a test portion with a standard volumetric solution of sodium hydroxide in presence of bromcresol green as indicator. Replaces ISO Recommendation R 904-1968.