Hydrochloric acid for industrial use — Determination of soluble sulphates — Turbidimetric method

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

11-01-1973

Publisher

International Organization for Standardization

The turbidimetric method is applicable to products containing less than 0.1 % (m/m) of soluble sulphates. The principle consists in evaporation of a test portion to dryness and solution of the residue in hydrochloric acid. Measurement of the turbidity obtained by precipitation, under well defined conditions, of barium sulphate. Has also been approved by the IUPAC.

Committee	ISO/TC 47
DocumentType	Standard
Pages	3
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
NBN T 03 007 : 1979	Identical

I.S. EN 1421:2012	CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM CHLORIDE
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DIN EN 1421:2013-03	Chemicals used for treatment of water intended for human consumption - Ammonium chloride
UNI EN 1421 : 2013	CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM CHLORIDE
12/30258176 DC : 0	BS EN 1421 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM CHLORIDE
BS EN 1421:2012	Chemicals used for treatment of water intended for human consumption. Ammonium chloride
UNE-EN 1421:2013	Chemicals used for treatment of water intended for human consumption - Ammonium chloride
EN 1421:2012	Chemicals used for treatment of water intended for human consumption - Ammonium chloride
PREN 1421 : DRAFT 2012	CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM CHLORIDE