1.1 ,These test methods ,2, ,3, ,4 cover the atomic absorption determination of nickel in water and wastewaters. Three test methods are given as follows:
| , | Concentration | , |
| Test Method A—,Atomic Absorption, ,Direct | , | , |
| Test Method B—,Atomic Absorption, ,Chelation-Extraction | , | , |
| Test Method C—,Atomic Absorption, ,Graphite Furnace | , | , |