Reference number
ISO 3946:1982
International Standard
ISO 3946:1982
Starches and derived products — Determination of total phosphorus content — Spectrophotometric method
Edition 1
1982-12
Read sample
ISO 3946:1982
9594
Published (Edition 1, 1982)
This publication was last reviewed and confirmed in 2019. Therefore this version remains current.

ISO 3946:1982

ISO 3946:1982
9594
Language
Format
CHF 42
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Abstract

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).

General information

  •  : Published
     : 1982-12
    : International Standard under systematic review [90.20]
  •  : 1
     : 3
  • ISO/TC 93
    67.180.20 
  • RSS updates

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