Herbicides, insecticides, and many industrial effluents contain arsenic and are potential sources of water pollution. Arsenic is significant because of its adverse physiological effects on humans.
1.1 These test methods cover the photometric and atomic absorption determination of arsenic in most waters and wastewaters. Three test methods are given as follows:
| Concentration Range | Sections | |
| Test Method A-Silver Diethyldithio-carbamate Colorimetric | 5 to 250 956;g/L | 7 to 15 |
| Test Method B-Atomic Absorption,Hydride Generation | 1 to 20 956;g/L | 16 to 24 |
| Test Method C-Atomic Absorption, Graphite Furnace | 5 to 100 956;g/L | 25 to 33 |
1.2 The analyst should direct attention to the precision and bias statements for each test method. It is the user's responsibility to ensure the validity of these test methods for waters of untested matrices.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Note 1 and 6.
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