Codes & Standards - Purchase
ISO 3946:1982
Starches and derived products -- Determination of total phosphorus content -- Spectrophotometric method
SKU: iso_009594_103427
Published by ISO
Publication Year 1982
1 Edition
3 pages
Product Details
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).