This standard specifies the testing methods for nitrite in salt products. This standard applies to the determination of nitrite in salt products. The detection limit of nitrite specified in this standard is 0.05 mg/kg.
QB/T 4446-2012 Referenced Document
GB/T 6682 Water for analytical laboratory use.Specification and test methods
QB/T 4446-2012 history
2012QB/T 4446-2012 General test method in salt industry.Determination of nitrite