1.1 ,These test methods cover the determination of zinc in water. Section 26 on Quality Control pertains to these test methods. Two test methods are given as follows:
| Test Method | Concentration Range | Sections |
| A—,Atomic Absorption, Direct | 0.05 to 2 mg/L | ,8 –, 16 |
| B—,Atomic Absorption, | 20 to 200 μ,g/L | 17 –, 25 |