ISO 5373:1981
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Condensed phosphates for industrial use (including foodstuffs) — Determination of calcium content — Flame atomic absorption spectrometric method
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01-02-2024
English, French
01-11-1981
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Applicable to products having Ca contents equal to or more than 50 mg/kg. The presence of soluble SiO2 up to 5 g/ml in the test solution does not interfere. Hydrolysis by boiling a test portion in hydrochloric acid medium. Addition of sodium ions, until a constant concentration is obtained, to stabilize the promotion and emission of Ca; addition of lanthanum chloride to increase the sensitivity of the method. Aspiration of the solution into a dinitrogen monoxide-acetylene flame. Spectrometric measurement of the absorption of the 422.7-nm line emitted by a hollow-cathode calcium lamp. Has also been approved by the IUPAC.
| Committee |
ISO/TC 47
|
| DevelopmentNote |
Also numbered as BS 4427-13(1982) (08/2005)
|
| DocumentType |
Standard
|
| Pages |
4
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| UNE 55752:1984 | Identical |
| NBN EN 1208 : 2005 | Identical |
| NBN T 03 314 : 1984 | Identical |
| EN 1208:2005 | Chemicals used for treatment of water intended for human consumption - Sodium calcium polyphosphate |
| EN 1204:2005 | Chemicals used for treatment of water intended for human consumption - Calcium tetrahydrogen bis(orthophosphate) |
| 03/313977 DC : DRAFT NOV 2003 | EN 1204 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - MONOCALCIUM PHOSPHATE |
| DIN EN 1208:2005-06 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM CALCIUM POLYPHOSPHATE |
| I.S. EN 1204:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - CALCIUM TETRAHYDROGEN BIS(ORTHOPHOSPHATE) |
| I.S. EN 1208:2005 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM CALCIUM POLYPHOSPHATE |
| 03/313982 DC : DRAFT NOV 2003 | EN 1208 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM CALCIUM POLYPHOSPHATE |
| DIN EN 1204:2005-06 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - CALCIUM TETRAHYDROGEN BIS(ORTHOPHOSPHATE) |
| BS EN 1208:2005 | Chemicals used for treatment of water intended for human consumption. Sodium calcium polyphosphate |
| BS EN 1204:2005 | Chemicals used for treatment of water intended for human consumption. Calcium tetrahydrogen bis(orthophosphate) |
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