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1.1 ,These test methods cover the determination of nitrite nitrogen, nitrate nitrogen, and combined nitrite-nitrate nitrogen in water and wastewater in the range from 0.05 to 1.0 mg/L nitrogen. Two test methods2 are given as follows:
| , | Sections |
| Test Method A—,Automated Cadmium Reduction | ,9 to 18 |
| Test Method B—,Manual Cadmium Reduction | 19 to 28 |