Phosphoric acid for industrial use (including foodstuffs) — Determination of total phosphorus (V) oxide content — Quinoline phosphomolybdate gravimetric method

Available format(s)

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

Language(s)

English, French

Published date

11-01-1976

Publisher

International Organization for Standardization

Applicable to products whether or not they are homogeneous and whether or not they contain polyphosphoric acids. Specifies preliminary hydrolysis of the polyphosphoric acids by boiling in the presence of hydrochloric acid. The precipitation of the phosphoric acid is carried out in the form of quinoline phosphomolybdate in the presence of acetone. Filtration by a filter crucible, washing, drying and weighing of the precipitate.

Committee	ISO/TC 47
DocumentType	Standard
Pages	3
ProductNote	THIS STANDARD ALSO REFERS TO ISO 847,ISO 849
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
NBN T 03 267 : 1980	Identical
PN ISO 3706 : 2002	Identical

DIN EN 974:2004-01	Chemicals used for treatment of water intended for human consumption - Phosphoric acid; German version EN 974:2003
I.S. EN 1197:2014	CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - MONOZINC PHOSPHATE SOLUTION
DIN EN 1197:2001-03	CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - MONOZINC PHOSPHATE SOLUTION
DIN EN 1197:2014-06	CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - MONOZINC PHOSPHATE SOLUTION
UNI EN 1197 : 2014	CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - MONOZINC PHOSPHATE SOLUTION
UNE-EN 1197:2015	Chemicals used for treatment of water intended for human consumption - Monozinc phosphate solution
EN 974:2003	Chemicals used for treatment of water intended for human consumption - Phosphoric acid
BS EN 974:2003	Chemicals used for treatment of water intended for human consumption. Phosphoric acid
BS EN 1197:2014	Chemicals used for treatment of water intended for human consumption. Monozinc phosphate solution
EN 1197:2014	Chemicals used for treatment of water intended for human consumption - Monozinc phosphate solution