ISO 3360:1976
Current
The latest, up-to-date edition.
Phosphoric acid and sodium phosphates for industrial use (including foodstuffs) — Determination of fluorine content — Alizarin complexone and lanthanum nitrate photometric method
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English, French
01-08-1976
Applicable to products the F content of which is equal to or more than 0.5 mg/kg. Specifies the separation of the element from a test portion by steam distillation in a phosphoric acid medium. Formation of a blue-coloured complex with a combined reagent alizarin complexone/lanthanum nitrate in a buffered medium at the pH of 4.6. Addition of acetone to increase the stability of the complex and the sensitivity. Photometric measurement of the complex at a wavelength of about 600 nm.
| Committee |
ISO/TC 47
|
| DocumentType |
Standard
|
| Pages |
5
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| NBN EN 1207 : 2005 | Identical |
| NBN EN 1209 : 2004 | Identical |
| BS 4427-9:1975 | Similar to |
| NFT 20 479 : 1973 | Similar to |
| BS 4258-4:1975 | Similar to |
| NBN EN 1208 : 2005 | Identical |
| NBN T 03 265 : 1980 | Identical |
| NBN EN 1206 : 2005 | Identical |
| NBN EN 1202 : 2005 | Identical |
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