Reference
Method
Test
Reagent #
Reagent Name
EPA (SW-846)
Ion Chromatography
Inorganic Anions
5.5.5
Nitrite Stock Solution (1.00 mL = 1.00 mg NO2-)
ASTM
Chemically Suppressed Ion Chromatography
Anions
8.5.5
Nitrite Stock Solution (1.00 mL = 1.00 mg NO2-)
APHA
Ion Chromatography with Chemical Suppression of Eluent Conductivity
Anions
3d
Standard Nitrite Solution, 1000 mg/L