International Standard
ISO 3946:1982
Starches and derived products — Determination of total phosphorus content — Spectrophotometric method
Reference number
ISO 3946:1982
Edition 1
1982-12
© ISO 2024
International Standard
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Published (Edition 1, 1982)
This standard was last reviewed and confirmed in 2019. Therefore this version remains current.

ISO 3946:1982

Format
Language
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

  • Status
     : Published
    Publication date
     : 1982-12
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 3
  • Technical Committee :
    ISO/TC 93
    ICS :
    67.180.20 
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Life cycle

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This standard contributes to the following Sustainable Development Goals

10
Reduced Inequalities
12
Responsible Consumption and Production
3
Good Health and Well-being
2
Zero Hunger
9
Industry, Innovation and Infrastructure
8
Decent Work and Economic Growth

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