Reference
Method
Test
Reagent #
Reagent Name
EPA
Spectrophotometric, Cadmium Reduction
Nitrogen, Nitrate-Nitrite
6.12
Stock Nitrate Solution: 1.0 mL = 1.00 mg NO3-N
EPA
Colorimetric, Automated, Cadmium Reduction
Nitrogen, Nitrate-Nitrite
6.11
Stock Nitrate Solution: 1 mL = 1.0 mg NO3-N
ASTM
Manual Cadmium Reduction
Nitrite-Nitrate
19.7
Nitrate Solution, Stock (1.0 mL = 1.0 mg NO3-N)
ASTM
Automated Cadmium Reduction
Nitrite-Nitrate
11.7
Nitrate Solution, Stock (1.0 mL = 1.0 mg NO3-N)