|
Category |
Code |
Description |
Source |
Reference |
Low level method |
Active
|
Alias
|
Modified Date
|
|
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
|
|
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
|
|
10/04/2023
|
|
Analysis
|
EPA245.1
|
Mercury by Manual Cold Vapor Atomic Absorption (CVAA), Revision 3.0
|
USEPA
|
U.S.EPA, 1994. Methods for the Determination of Metals in Environmental Samples, Supplement 1 (EPA/600/R-94/111), Revision 3.0. National Exposure Research Laboratory (NERL), Cincinnati, Ohio
|
N
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA245.5
|
Mercury in Sediments by Manual Cold Vapor Atomic Absorption (CVAA)
|
USEPA
|
U.S. Environmental Protection Agency Office of Water 600/4-91-010
|
N
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA245.7
|
Mercury by Cold Vapor Atomic Flourescence (CVAF)
|
USEPA
|
U.S. Environmental Protection Agency Office of Water EPA 821/R-01-008, CD
|
N
|
Y
|
|
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
|
|
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
|
|
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
|
|
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
|
|
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
|
|
10/04/2023
|
|
Analysis
|
EPA273.2
|
Sodium by Graphite Furnace Atomic Absorption (GFAA)
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL)
|
N
|
Y
|
|
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
|
|
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
|
|
10/04/2023
|
|
Analysis
|
EPA300.0
|
Inorganic Anions, Ion Chromatography
|
USEPA
|
Methods for the Determination of Inorganic Substances in Environmental Samples (EPA/600/R-93/100)
|
N
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA310.1
|
Alkalinity (Titrimetric, pH 4.5)
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), Issued 1971; Editorial Revision 1978
|
N
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA310.2
|
Alkalinity (Colorimetric, Automated, Methyl Orange)
|
USEPA
|
U.S. Environmental Protection Agency Office of Water 600/4-79-020.
|
N
|
Y
|
|
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
|
|
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
|
|
10/04/2023
|
|
Analysis
|
EPA350.1
|
Nitrogen as Ammonia, Colorimetric, Automated Phenate
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL), Methods for the Determination of Inorganic Substances in Environmental Samples (EPA/600/R-93/100)
|
N
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA351.1
|
Nitrogen, Total, Kjeldahl, Colorimetric, Automated Phenol 600/4-79-020
|
USEPA
|
U.S. Environmental Protection Agency Office of Water.
|
N
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA351.2
|
Total Kjeldahl Nitrogen in Water by Semiautomated Colorimetry, Revision 2
|
USEPA
|
U.S. EPA, 1993. Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020), Revision 2, August 1993, EPA-ORD / EPA-OST.
|
N
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA351.2M
|
Total Kjeldahl Nitrogen in Water by Semiautomated Colorimetry, Revision 2, Modified.
|
USEPA
|
U.S. EPA, 1993. Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020), Revision 2, August 1993, Modified, EPA-ORD / EPA-OST.
|
N
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA351.3
|
Total Kjeldahl Nitrogen Colorimetric, Titrimetric, Potentiometric
|
USEPA
|
U.S. Environmental Protection Agency Office of Water. 600/R-93-100
|
N
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA351.4
|
Total Kjeldahl Nitrogen Potentiometric, Ion Selective Electrode
|
USEPA
|
U.S. Environmental Protection Agency Office of Water. 600/4-79-020
|
N
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA353.2
|
Nitrogen, Nitrate-Nitrite (Colorimetric, Automated Cadmium Reduction), Revision 2
|
USEPA
|
US EPA, 1993. Methods for the Determination of Inorganic Substances in Environmental Samples (EPA/600/R-93/100), Revision 2, August 1993, National Exposure Research Laboratory (NERL), Cincinnati, OH.
|
N
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA353.2M
|
Nitrogen, Nitrate-Nitrite (Colorimetric, Automated Cadmium Reduction), Revision 2, Modified for Soils.
|
USEPA
|
US EPA, 1993. Methods for the Determination of Inorganic Substances in Environmental Samples (EPA/600/R-93/100), Revision 2, August 1993, National Exposure Research Laboratory (NERL), Cincinnati, OH.
|
N
|
Y
|
|
10/04/2023
|
|
Analysis or Measurement
|
EPA360.1
|
Dissolved Oxygen (DO) by Membrane Electrode.
|
USEPA
|
US EPA National Exposure Research Laboratory (NERL), Methods for the Chemical Analysis of Water and Wastes (MCAWW), EPA/600/4-79/020, 1971.
|
N
|
Y
|
|
07/25/2025
|
|
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
|
|
10/05/2023
|
|
Analysis
|
EPA365.1
|
Phosphorus, All Forms (Colorimetric, Automated, Ascorbic Acid)
|
USEPA
|
U.S.EPA National Exposure Research Laboratory (NERL) 600/R-93-100
|
N
|
Y
|
|
10/05/2023
|
|
Analysis
|
EPA365.2
|
Phosphorus, (All Forms), Colorimetric, Ascorbic Acid, Single Reagent
|
USEPA
|
U.S. Environmental Protection Agency Office of Water 600/4-79-020.
|
N
|
Y
|
|
01/13/2026
|
|
Analysis
|
EPA365.3
|
Phosphorus, (All Forms), Colorimetric, Ascorbic Acid, Two Reagent
|
USEPA
|
U.S. Environmental Protection Agency Office of Water 600/4-79-020
|
N
|
Y
|
|
10/09/2023
|
|
Analysis
|
EPA365.3M
|
Phosphorus, Orthophosphate; Colorimetric, Ascorbic Acid, Two Reagent low level cal. Modified.
|
USEPA
|
U.S. Environmental Protection Agency Office of Water. 600/4-79-020
|
N
|
Y
|
|
10/09/2023
|
|
Analysis
|
EPA365.3OP
|
Phosphorus, Ortho-phos; Colorimetric, Ascorbic Acid, Two Reagent
|
USEPA
|
|
N
|
Y
|
|
10/09/2023
|
|
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
|
|
10/09/2023
|
|
Analysis
|
EPA1668A
|
Chlorinated Biphenyls in Water, Soil, Sediment, Biosolids and Tissue by HRGC/HRMS, Revision A
|
USEPA
|
US EPA Office of Water, Engineering and Analysis Division, Revision A, EPA 821-R-00-002, December 1999.
|
Y
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA1668B
|
Chlorinated Biphenyls in Water, Soil, Sediment, Biosolids and Tissue by HRGC/HRMS, Revision B
|
USEPA
|
US EPA Office of Water, Office of Science and Technology, Engineering and Analysis Division, EPA-821-R-08-020, November 2008
|
Y
|
Y
|
|
10/04/2023
|
|
Preparation
|
EPA1668C-PREP
|
Chlorinated Biphenyls in Water, Soil, Sediment, Biosolids and Tissue by HRGC/HRMS, Revision C, Preparation.
|
USEPA
|
US EPA Office of Water, Office of Science and Technology, Engineering and Analysis Division, EPA-820-R-10-005, April 2010.
|
Y
|
Y
|
|
10/04/2023
|
|
Analysis
|
EPA1668C
|
Chlorinated Biphenyls in Water, Soil, Sediment, Biosolids and Tissue by HRGC/HRMS, Revision C
|
USEPA
|
US EPA Office of Water, Office of Science and Technology, Engineering and Analysis Division, EPA-820-R-10-005, April 2010
|
Y
|
Y
|
|
10/04/2023
|
|
1538 records
|