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ISO 3946:1982

Starches and derived products — Determination of total phosphorus content — Spectrophotometric method

Dec 1, 1982

General information

90.93     Mar 25, 2025

ISO

ISO/TC 93

International Standard

67.180.20  

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Published

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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
ISO 3946:1982
90.93 Standard confirmed
Mar 25, 2025

National adoptions

SRPS ISO 3946:2002  
ISS

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

95.99   Withdrawal of Standard

E034-4 more

SRPS EN ISO 3946:2008  
ISS

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

90.93   Standard confirmed

E034-4 more