DS EN 12014-3:2005 Foodstuffs - Determination Of Nitrate And/Or Nitrite Content - Part 3: Spectrometric Determination Of Nitrate And Nitrite Content Of Meat Products After Enzymatic Reduction Of Nitrate To Nitrite Describes a spectrometric method for the determination of nitrate and nitrite content of meat products and has been validated for different meat products with a content of 9 mg/kg to 22 mg/kg nitrite