This standard specifies a method for the spectrophotometric determination of nitrite. This standard is applicable to the determination of nitrite in groundwater: the determination range is 0.004~0.10mg/L.
DZ/T 0064.60-1993 history
1970DZ/T 0064.60-2021 Analytical methods of groundwater quality - Part 60: Determination of nitrite spectrophotometric method
1993DZ/T 0064.60-1993 Spectrophotometric method for determination of nitrite radicals in groundwater quality testing