ISO 3946:1982
Starches and derived products — Determination of total phosphorus content — Spectrophotometric method
OVERVIEW
Destruction of the organic substances by digestion with a sulpho-nitric mixture and conversion of phosphates to orthophosphates. Formation of a phosphomolybdate. Measurement of the intensity of the blue colour at a wavelength of 825 nm. The method applies to contents up to 5 % (m/m).
COMMENTS
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PRODUCT DETAILS
| Status | Current |
|---|---|
| Edition | 1982 |
| No. of Pages | 3 |
| ICS Classification | 67.180.20 Starch and derived products |
| Committee | ISO/TC 93 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |