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EN ISO 3946:1994

Starches and derived products - Determination of total phosphorus content - Spectrophotometric method (ISO 3946:1982) EN ISO 3946:1994

Publication date:   Jul 16, 2000

General information

90.93 Standard confirmed   Oct 13, 1999

CEN

CEN/BT

European Norm

67.180.20   Starch and derived products

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Scope

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).

Life cycle

NOW

PUBLISHED
EN ISO 3946:1994
90.93 Standard confirmed
Oct 13, 1999

Relations

Adopted from ISO 3946:1982 IDENTICAL