| EPA Method | Test Name | Matrix | MRL | Instrument |
|---|
| EPA 218.6 | Hexavalent Chromium, Dissolved, In DW, Groundwater And Industrial Wastewater Effluents By IC | Liquid | 0.01 | IC |
| EPA 7196A | Chromium, Hexavalent (Colorimetric) | Liquid | 0.01 | Discrete-FIA |
| EPA 7196A | Chromium, Hexavalent (Colorimetric) | Liquid | 0.01 | UV-VIS |
| EPA 7196A | Chromium, Hexavalent (Colorimetric) | Liquid | 0.05 | UV-VIS |
| EPA 7196A | Chromium, Hexavalent (Colorimetric) | NonAq Liquid | 1 | Discrete-FIA |
| EPA 7196A | Chromium, Hexavalent (Colorimetric) | NonAq Liquid | 1 | UV-VIS |
| EPA 7196A | Chromium, Hexavalent (Colorimetric) | Solid | 0.5 | UV-VIS |
| EPA 7196A | Chromium, Hexavalent (Colorimetric) | Solid | 4 | Discrete-FIA |
| EPA 7196A | Chromium, Hexavalent (Colorimetric) | Solid | 4 | UV-VIS |
| EPA 7196A | WET Chromium, Hexavalent (Colorimetric) for State of California | Solid | 0.5 | UV-VIS |
| EPA 7199 | Hexavalent Chromium in DW, Groundwater and Industrial Wastewater Effluents by Ion Chromatography | Liquid | 0.01 | IC |
| EPA 7199 | Hexavalent Chromium in DW, Groundwater and Industrial Wastewater Effluents by Ion Chromatography | Liquid | 0.1 | IC |
| EPA 7199 | Hexavalent Chromium in DW, Groundwater and Industrial Wastewater Effluents by Ion Chromatography | Solid | 0.4 | IC |
| EPA 7199 | SPLP Hexavalent Chromium by Ion Chromatography | Solid | 0.01 | IC |
| SM 3500-Cr B | Chromium, Hexavalent, Dissolved (Colorimetric) 20th Ed. | Liquid | 0.01 | Discrete-FIA |
| SM 3500-Cr B | Chromium, Hexavalent, Dissolved (Colorimetric) 20th Ed. | Liquid | 0.01 | UV-VIS |
| SM 3500-Cr B | Chromium, Hexavalent, Total (Colorimetric) 20th Ed. | Liquid | 0.01 | Discrete-FIA |
| SM 3500-Cr B | Chromium, Hexavalent, Total (Colorimetric) 20th Ed. | Liquid | 0.01 | UV-VIS |