ISO 2992:1974
Withdrawn
Ammonium sulphate for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method
Hardcopy , PDF
English, French
04-01-1974
04-30-2025
Applicable to Fe contents of equal to or more than 0.0001 % (m/m). The reaction bases on the reduction of iron(III) by hydroxylammonium chloride. Formation of the complex between iron(II) and 2,2'-dipyridyl in a buffered medium (pH value between 4.5 and 6). Photometric measurement of the coloured complex at a wavelength of about 522 nm. Has also been approved by the IUPAC.
| Committee |
ISO/TC 47
|
| DocumentType |
Standard
|
| Pages |
3
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| BS 3786:1964 | Similar to |
| NBN T 03 066 : 1979 | Identical |
| NFT 20 573 : 1966 | Similar to |
| EN 12123:2012 | Chemicals used for treatment of water intended for human consumption - Ammonium sulfate |
| 12/30258200 DC : 0 | BS EN 12123 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM SULFATE |
| PREN 12123 : DRAFT 2012 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM SULFATE |
| I.S. EN 12123:2012 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM SULFATE |
| DIN EN 12123:2013-02 | Chemicals used for treatment of water intended for human consumption - Ammonium sulfate |
| BS EN 12123:2012 | Chemicals used for treatment of water intended for human consumption. Ammonium sulfate |
| UNE-EN 12123:2013 | Chemicals used for treatment of water intended for human consumption - Ammonium sulfate |
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