ISO 3706:1976
Current
The latest, up-to-date edition.
Phosphoric acid for industrial use (including foodstuffs) — Determination of total phosphorus (V) oxide content — Quinoline phosphomolybdate gravimetric method
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English, French
01-11-1976
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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 |
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