ISO 20541:2008|IDF 197:2008
Determination of nitrate content in milk and milk products Enzymatic reduction method and Griess reaction molecular absorption spectrometry

Standard No.

ISO 20541:2008|IDF 197:2008

Release Date

2008

Published By

International Organization for Standardization (ISO)

Latest

ISO 20541:2008

Scope

Thisstandardspecifiesamethodforthedeterminationofthenitratecontentofmilkandmilkproductsbymolecular-absorptionspectrometryafterGriessreaction(precededbyenzymaticreduction).Themethodis,inparticular,applicabletowhole,partlyskimmed,skimmedanddriedmilk,hard,semi-hardandsoftcheeses,processedcheese,wheycheese,caseins,caseinates,driedwheyandmilkproteinconcentrates.Themethodcanbeusedatcontentscorrespondingtoameasuredconcentrationinthesamplesolution(withblanksubtracted)ofmorethan0,2mg/l.

ISO 20541:2008|IDF 197:2008 history

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