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1.1 ,These test methods cover the determination of dissolved and total recoverable cobalt in water and wastewater ,2 by atomic absorption spectrophotometry. Three test methods are included as follows:
| , | Concentration Range | Sections |
| Test Method A—,Atomic Absorption, ,Direct | ,0.1 to 10 mg/L | 7 to 16 |
| Test Method B—,Atomic Absorption, ,Chelation-Extraction | 10 to 1000 μ,g/L | ,17 to 26 |
| Test Method C—,Atomic Absorption, ,Graphite Furnace | ,5 to 100 μ,g/L | ,27 to 36 |