This standard specifies the method for the determination of nitrate and nitrite by cadmium reduction and photometric analysis. This standard applies to the determination of nitrate and nitrite in milk powder. The detection limits of this method are: nitrate 1.5mg/kg; nitrite 0.2mg/kg.
GB/T 5413.32-1997 history
2017GB 5009.33-2016 Determination of Nitrite and Nitrate in Food Safety National Standards
2010GB 5009.33-2010 National food safety standard Determination of nitrite and nitrate in foods
1997GB/T 5413.32-1997 Milk powder--Determination of nitrate and nitrite contents
GB/T 5413.32-1997 Milk powder--Determination of nitrate and nitrite contents was changed to GB/T 5009.33-2008 Determination of nitrite and nitrate in foods.