ISO 2993:1974
Withdrawn
Ammonium sulphate for industrial use — Determination of free acidity — Titrimetric method
Hardcopy , PDF
English, French
04-01-1974
04-30-2025
Applicable to products having a free acidity, expressed as H2 SO4 , equal to or more than 0.01 % (m/m). Dissolution of a test portion in Water and titration with standard volumetric sodium hydroxide solution in the presence of an indicator. The indicator must have a colour change in the pH range between 5.2 and 5.6. Has also been approved by the IUPAC.
| Committee |
ISO/TC 47
|
| DocumentType |
Standard
|
| Pages |
2
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| BS 3786:1964 | Similar to |
| NBN T 03 067 : 1979 | Identical |
| 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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