Valid Values - Methods



     
  
  
   
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Category Code Description Source Reference Low level method Active Alias Modified By Modified Date
Analysis EPA160.4 Residue, Volatile, Muffle Furnace, Gravimetric, Ignition at 550 Deg-C USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA210.2 Beryllium by Graphite Furnace Atomic Absorption (GFAA) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA206.2 Arsenic by Graphite Furnace Atomic Absorption (GFAA) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA213.2 Cadmium by Graphite Furnace Atomic Absorption (GFAA) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA215.2 Calcium, Titrimetric, EDTA USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA218.2 Chromium by Graphite Furnace Atomic Absorption (GFAA) USACE U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA218.5 Chromium, Hexavalent, Dissolved USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA220.2 Copper by Graphite Furnace Atomic Absorption (GFAA) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA239.2 Lead by Graphite Furnace Atomic Absorption (GFAA) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA249.2 Nickel by Graphite Furnace Atomic Absorption (GFAA) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA273.1 Sodium by Flame Atomic Absorption (AA), Direct Aspiration USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA270.2 Selenium by Graphite Furnace Atomic Absorption (GFAA) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA279.2 Thallium by Graphite Furnace Atomic Absorption (GFAA) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA272.2 Silver by Graphite Furnace Atomic Absorption (GFAA) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA286.2 Vanadium by Graphite Furnace Atomic Absorption (GFAA) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA335.3 Total Cyanide by Automated UV Colorimetry USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA340.3 Fluoride by Colorimetry, Automated Compexone USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA420.2 Phenolics, Total Recoverable, Colorimetric, Automated 4-AAP with Dis USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/09/2023
Analysis EPA425.1 Methylene Blue Active Substances (MBAs) Colorimetric USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/09/2023
Analysis EPA350.3M Nitrogen as Ammonia (Potentiometric, Ion Selective Electrode), Modified USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA340.2 Fluoride, Potentiometric, Ion Selective Electrode USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA160.4M Residue, Volatile, Muffle Furnace, Gravimetric, Ignition at 550 Deg-C, modified USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA335.2 Total Cyanide in Water by Titrimetry, Spectrophotometry USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA340.1 Total Fluoride by Colorimetry, SPADNS with Bellack Distillation USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA220.1 Copper by Flame Atomic Absorption, Direct Aspiration USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA289.1 Zinc by Flame Atomic Absorption (AA), Direct Aspiration USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA350.3 Nitrogen as Ammonia (Potentiometric, Ion Selective Electrode) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA350.2 Nitrogen as Ammonia (Colorimetric; Titrimetric; Potentiometric - Distillation Procedure) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA218.1 Chromium by Flame Atomic Absorption (AA), Direct Aspiration USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA335.1 Cyanides Amenable to Chlorination by Titrimetry, Spectrophotometry USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/04/2023
Analysis EPA440.0 Elemental Carbon and Nitrogen by Combustion and Thermal Conductivity USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for Determination of Chemical Substances in Marine and Estuarine Matrices - 2nd Edition (EPA/600/R-97/072) N Y benf461 10/12/2023
Analysis EPA446.0 Chlorophylls and Pheopigments in Phytoplankton by Spectrophotometry USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for Determination of Chemical Substances in Marine and Estuarine Matrices - 2nd Edition (EPA/600/R-97/072) N Y benf461 10/12/2023
Analysis EPA418.1 Petroleum Hydrocarbons, Total Recoverable, Infrared Spectroscopy USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for Chemical Analysis of Water and Waste 1983 (EPA-600/4-79/020 PB84-18677) N Y benf461 10/09/2023
Analysis EPA245.2 Mercury by Automated Cold Vapor Atomic Absorption (CVAA) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Issued 1974 N Y benf461 10/04/2023
Analysis EPA376.1 Sulfide (Titrimetric, Iodine) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Issued 1971; Editorial Revision 1978, Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/09/2023
Analysis EPA310.1 Alkalinity (Titrimetric, pH 4.5) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Issued 1971; Editorial Revision 1978 N Y benf461 10/04/2023
Analysis EPA202.1 Aluminum by Flame Atomic Absorption (AA), Direct Aspiration USEPA U.S.EPA National Exposure Research Laboratory (NERL), Issued 1971; Editorial Revision 1974 and 1978. N Y benf461 10/04/2023
Analysis EPA236.1 Iron by Flame Atomic Absorption (AA), Direct Aspiration USEPA U.S.EPA National Exposure Research Laboratory (NERL), Issued 1971; Editorial Revision 1974 and 1978. N Y benf461 10/04/2023
Analysis EPA243.1 Manganese by Flame Atomic Absorption (AA), Direct Aspiration USEPA U.S.EPA National Exposure Research Laboratory (NERL), Issued 1971; Editorial Revision 1974 and 1978. N Y benf461 10/04/2023
Analysis EPA258.1 Potassium by Flame Atomic Absorption (AA), Direct Aspiration USEPA U.S.EPA National Exposure Research Laboratory (NERL), Issued 1971; Editorial Revision 1974 N Y benf461 10/04/2023
Analysis EPA625 Base/Neutral and Acid Organics in Wastewater by GC/MS USEPA U.S.EPA National Exposure Research Laboratory (NERL), Cincinnati, Ohio, Methods and Guidance for Analysis of Water CD, Version 2.0 N Y benf461 10/16/2023
Analysis EPA625-SIM Base/Neutral and Acid Organics in Wastewater by GC/MS, Selective Ion Monitoring (SIM) USEPA U.S.EPA National Exposure Research Laboratory (NERL), Cincinnati, Ohio, Methods and Guidance for Analysis of Water CD, Version 2.0 N Y EPA625SIM benf461 10/16/2023
Analysis EPA625M Base/Neutral and Acid Organics in Wastewater by GC/MS, Modified USEPA U.S.EPA National Exposure Research Laboratory (NERL), Cincinnati, Ohio, Methods and Guidance for Analysis of Water CD, Version 2.0 N Y benf461 10/16/2023
Analysis EPA505 Determination of Organohalide Pesticides and Commercial Polychlorinated Biphenyl (PCB) Products in Water by Microextraction and Gas Chromatography USEPA U.S.EPA National Exposure Research Laboratory (NERL), 1995. Methods for the Determination of Organic Compounds in Drinking Water - Supplement III (EPA/600/R-95-131), Revision 2.1, 1995. N Y benf461 10/12/2023
Analysis EPA354.1 Nitrogen, Nitrite, by Spectroscopy (Colorimetry; Photometry) USEPA U.S.EPA National Exposure Research Laboratory (NERL), 1979. Methods and Guidance for Analysis of Water and Wastes (MCAWW), Version 2.0 (EPA/600/4-79/020) N Y benf461 10/04/2023
Measurement EPA170.1 Temperature by Thermistor U.S.EPA National Exposure Research Laboratory (NERL), 1974. Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) Y CNEU461 05/22/2008
Analysis EPA360.2 Dissolved Oxygen (DO) by Modified Winkler Full Bottle USEPA U.S.EPA National Exposure Research Laboratory (NERL), 1971 600/4-79-020 N Y benf461 10/05/2023
Analysis EPA352.1 Nitrate by Colorimetry USEPA U.S.EPA National Exposure Research Laboratory (NERL), 1971 N Y benf461 10/04/2023
Analysis EPA420.1 Phenols by Spectrophotometry USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/09/2023
Analysis EPA420.1M Phenols by Spectrophotometry, modified USEPA U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) N Y benf461 10/09/2023
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