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ISO 20541:2008

Milk and milk products — Determination of nitrate content — Method by enzymatic reduction and molecular-absorption spectrometry after Griess reaction

Aug 26, 2008

General information

90.93     Jul 4, 2025

ISO

ISO/TC 34/SC 5

International Standard

67.100.01  

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Published

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Scope

ISO 20541|IDF 197:2008 specifies a method for the determination of the nitrate content of milk and milk products by molecular-absorption spectrometry after Griess reaction (preceded by enzymatic reduction).
The method is, in particular, applicable to whole, partly skimmed, skimmed and dried milk, hard, semi-hard and soft cheeses, processed cheese, whey cheese, caseins, caseinates, dried whey and milk protein concentrates.
The method can be used at contents corresponding to a measured concentration in the sample solution (with blank subtracted) of more than 0,2 mg/l.

Life cycle

NOW

PUBLISHED
ISO 20541:2008
90.93 Standard confirmed
Jul 4, 2025

National adoptions

SRPS EN ISO 20541:2009  
ISS

Milk and milk products - Determination of nitrate content - Method by enzymatic reduction and molecular-absorption spectrometry after Griess reaction (ISO 20541:2008)

90.93   Standard confirmed

E034-5 more