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ISO 3946:1982 (R2025)
Starches and derived products — Determination of total phosphorus content — Spectrophotometric method
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Summary
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).
Notes
90.60 : Clôture de l'examen
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 12/01/1982 |
| Confirmation Date | 03/25/2025 |
| Edition | 1 |
| Page Count | 3 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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01/12/1982
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