
ASTM D 3370 : 2025
Current
The latest, up-to-date edition.

Standard Practices for Sampling Water from Flowing Process Streams
Hardcopy , PDF
English
01-01-2025
Committee |
D 19
|
DocumentType |
Standard Practice
|
Pages |
13
|
PublisherName |
American Society for Testing and Materials
|
Status |
Current
|
Supersedes |
1.1These practices cover the equipment and methods for sampling water from flowing process streams such as process streams at power stations for chemical, physical, microbiological, and radiological analyses. It does not cover specialized equipment required for and unique to a specific test or method of analysis. The following are included:
Sections | |
Practice A—Grab Samples | 9 – 17 |
Practice B—Composite Samples | 18 – 23 |
Practice C—On-Line Sampling | 24 – 29 |
1.2For information on specialized sampling equipment, tests or methods of analysis, reference should be made to Volumes 11.01 and 11.02 of the Annual Book of ASTM Standards, relating to water.
1.3The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.
1.4This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazards statements, see 8.3 and 13.4.
1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM D 1971 : 2016 : R2021 : EDT 1 | Standard Practices for Digestion of Water Samples for Determination of Metals by Flame Atomic Absorption, Graphite Furnace Atomic Absorption, Plasma Emission Spectroscopy, or Plasma Mass Spectrometry |
ASTM D 7725 : 2017 : R2023 | Standard Test Method for the Continuous Measurement of Turbidity Above 1 Turbidity Unit (TU) |
ASTM D 5284 : 2009 : R2023 | Standard Test Method for Sequential Batch Extraction of Waste with Acidic Extraction Fluid |
ASTM D 3558 : 2015 : R2023 | Standard Test Methods for Cobalt in Water |
ASTM D 3651 : 2016 : R2021 : EDT 1 | Standard Test Method for Barium in Brackish Water, Seawater, and Brines |
ASTM D 5744 : 2018 : R2024 | Standard Test Method for Laboratory Weathering of Solid Materials Using a Humidity Cell |
ASTM D 1179 : 2016 : R2021 : EDT 1 | Standard Test Methods for Fluoride Ion in Water |
ASTM D 8429 : 2021 | Standard Test Method for <emph type="bdit">Legionella pneumophila</emph> in Water Samples Using Legiolert |
ASTM D 6044 : 2021 | Standard Guide for Representative Sampling for Management of Waste and Contaminated Media |
ASTM D 4309 : 2018 | Standard Practice for Sample Digestion Using Closed Vessel Microwave Heating Technique for the Determination of Total Metals in Water |
ASTM D 6569 : 2023 | Standard Test Method for On-Line Measurement of pH |
ASTM D 1976 : 2020 | Standard Test Method for Elements in Water by Inductively-Coupled Plasma Atomic Emission Spectroscopy |
ASTM D 5241 : 1992 : R2024 | Standard Practice for Micro-Extraction of Water for Analysis of Volatile and Semi-Volatile Organic Compounds in Water |
ASTM D 4785 : 2020 | Standard Test Method for Low-Level Analysis of Iodine Radioisotopes in Water |
ASTM D 4793 : 2009 : R2023 | Standard Test Method for Sequential Batch Extraction of Waste with Water |
ASTM D 932 : 2020 : R2024 | Standard Practice for Filamentous Iron Bacteria in Water and Water-Formed Deposits |
ASTM D 3648 : 2023 | Standard Practices for the Measurement of Radioactivity |
ASTM D 2330 : 2020 | Standard Test Method for Methylene Blue Active Substances |
ASTM D 5464 : 2016 | Standard Test Method for pH Measurement of Water of Low Conductivity |
ASTM D 859 : 2016 : R2021 : EDT 1 | Standard Test Method for Silica in Water |
ASTM D 4691 : 2017 | Standard Practice for Measuring Elements in Water by Flame Atomic Absorption Spectrophotometry |
ASTM D 1126 : 2017 | Standard Test Method for Hardness in Water |
ASTM D 5233 : 1992 : R2023 | Standard Test Method for Single Batch Extraction Method for Wastes |
ASTM D 4193 : 2008 : R2020 : EDT 1 | Standard Test Method for Thiocyanate in Water |
ASTM D 3867 : 2016 : R2021 : EDT 1 | Standard Test Methods for Nitrite-Nitrate in Water |
ASTM D 7283 : 2017 | Standard Test Method for Alpha and Beta Activity in Water By Liquid Scintillation Counting |
ASTM D 3859 : 2015 : R2023 | Standard Test Methods for Selenium in Water |
ASTM D 2791 : 2019 | Standard Test Method for On-Line Determination of Sodium in Water |
ASTM D 4128 : 2018 | Standard Guide for Identification and Quantitation of Organic Compounds in Water by Combined Gas Chromatography and Electron Impact Mass Spectrometry |
ASTM D 4328 : 2018 | Standard Practice for Calculation of Supersaturation of Barium Sulfate, Strontium Sulfate, and Calcium Sulfate Dihydrate (Gypsum) in Brackish Water, Seawater, and Brines |
ASTM D 7784 : 2020 | Standard Practice for the Rapid Assessment of Gamma-ray Emitting Radionuclides in Environmental Media by Gamma Spectrometry |
ASTM D 857 : 2017 | Standard Test Method for Aluminum in Water |
ASTM D 4517 : 2015 : R2023 | Standard Test Method for Low-Level Total Silica in High-Purity Water by Flameless Atomic Absorption Spectroscopy |
ASTM D 8596 : 2024 | Standard Test Method for Bioavailable Aluminum in Water with Suspended Solids |
ASTM D 3373 : 2017 | Standard Test Method for Vanadium in Water |
ASTM D 4107 : 2020 | Standard Test Method for Tritium in Drinking Water |
ASTM D 7168 : 2021 | Standard Test Method for <sup>99</sup>Tc in Water by Solid Phase Extraction Disk |
ASTM D 8155 : 2017 : R2023 | Standard Practice for Shake Extraction of Solid Mining and Metallurgical Processing Waste with Water |
ASTM D 6301 : 2021 | Standard Practice for Collection of On-Line Composite Samples of Suspended Solids and Ionic Solids in Process Water |
ASTM D 513 : 2016 : R2024 | Standard Test Methods for Total and Dissolved Carbon Dioxide in Water |
ASTM D 3987 : 2012 : R2020 | Standard Practice for Shake Extraction of Solid Waste with Water |
ASTM D 5462 : 2021 | Standard Test Method for On-Line Measurement of Low-Level Dissolved Oxygen in Water |
ASTM D 3869 : 2015 : R2023 | Standard Test Methods for Iodide and Bromide Ions in Brackish Water, Seawater, and Brines |
ASTM D 5316 : 1998 : R2024 | Standard Test Method for 1,2-Dibromoethane and 1,2-Dibromo-3-Chloropropane in Water by Microextraction and Gas Chromatography |
ASTM D 5540 : 2013 : R2021 | Standard Practice for Flow Control and Temperature Control for On-Line Water Sampling and Analysis |
ASTM D 3875 : 2015 : R2023 | Standard Test Method for Alkalinity in Brackish Water, Seawater, and Brines |
ASTM D 6698 : 2024 | Standard Test Method for On-Line Measurement of Turbidity Below 5 NTU in Water |
ASTM D 5392 : 2024 | Standard Test Method for Isolation and Enumeration of <emph type="bdit">Escherichia coli</emph> in Water by the Two-Step Membrane Filter Procedure |
ASTM D 7511 : 2012 : R2024 | Standard Test Method for Total Cyanide by Segmented Flow Injection Analysis, In-Line Ultraviolet Digestion and Amperometric Detection |
ASTM D 1688 : 2017 | Standard Test Methods for Copper in Water |
ASTM D 6234 : 2013 : R2020 | Standard Test Method for Shake Extraction of Mining Waste by the Synthetic Precipitation Leaching Procedure |
ASTM D 1943 : 2020 | Standard Test Method for Alpha Particle Radioactivity of Water |
ASTM D 6520 : 2018 | Standard Practice for the Solid Phase Micro Extraction (SPME) of Water and its Headspace for the Analysis of Volatile and Semi-Volatile Organic Compounds |
ASTM D 5997 : 2015 : R2024 | Standard Test Method for On-Line Monitoring of Total Carbon, Inorganic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection |
ASTM D 8478 : 2023 | Standard Test Method for N-Hexane Recoverable Total Oil and Grease and Total Petroleum Hydrocarbons in Water by ATR-Infrared Determination |
ASTM D 3864 : 2012 : R2021 | Standard Guide for On-Line Monitoring Systems for Water Analysis |
ASTM D 8083 : 2024 | Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection |
ASTM D 4458 : 2015 : R2023 | Standard Test Method for Chloride Ions in Brackish Water, Seawater, and Brines |
ASTM D 6502 : 2010 : R2022 | Standard Test Method for Measurement of On-line Integrated Samples of Low Level Suspended Solids and Ionic Solids in Process Water by X-Ray Fluorescence (XRF) |
ASTM D 5544 : 2016 : R2023 | Standard Test Method for On-Line Measurement of Residue After Evaporation of High-Purity Water |
ASTM D 8234 : 2019 | Standard Test Method for Anions in High Ionic Water by Ion Chromatography using Tandem Suppressed Conductivity and UV Detection |
ASTM D 1125 : 2023 | Standard Test Methods for Electrical Conductivity and Resistivity of Water |
ASTM D 8456 : 2022 | Standard Test Method for Determination of Nitrosamines in Water by Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS) |
ASTM D 7126 : 2015 : R2023 | Standard Test Method for On-Line Colorimetric Measurement of Silica |
ASTM D 4188 : 2017 | Standard Practice for Performing Pressure In-Line Coagulation-Flocculation-Filtration Test in Water |
ASTM D 1886 : 2014 : R2021 : EDT 1 | Standard Test Methods for Nickel in Water |
ASTM D 4922 : 2021 | Standard Test Method for Determination of Radioactive Iron in Water |
ASTM D 1292 : 2015 : R2021 : EDT 1 | Standard Test Method for Odor in Water |
ASTM D 4165 : 2006 : R2020 : EDT 1 | Standard Test Method for Cyanogen Chloride in Water |
ASTM D 4282 : 2015 : R2022 | Standard Test Method for Determination of Free Cyanide in Water and Wastewater by Microdiffusion |
ASTM D 7363 : 2013 : REV A : R2021 : EDT 1 | Standard Test Method for Determination of Parent and Alkyl Polycyclic Aromatics in Sediment Pore Water Using Solid-Phase Microextraction and Gas Chromatography/Mass Spectrometry in Selected Ion Monitoring Mode |
ASTM D 5411 : 2021 | Standard Practice for Calculation of Average Energy Per Disintegration (<acb><base vertadj="0">E</base><ac>–</ac></acb>) for a Mixture of Radionuclides in Reactor Coolant |
ASTM D 7066 : 2004 : R2024 | Standard Test Method for dimer/trimer of chlorotrifluoroethylene (S-316) Recoverable Oil and Grease and Nonpolar Material by Infrared Determination |
ASTM D 3697 : 2017 | Standard Test Method for Antimony in Water |
ASTM D 6908 : 2006 : R2017 | Standard Practice for Integrity Testing of Water Filtration Membrane Systems |
ASTM D 3860 : 1998 : R2020 | Standard Practice for Determination of Adsorptive Capacity of Activated Carbon by Aqueous Phase Isotherm Technique |
ASTM D 4195 : 2023 | Standard Guide for Water Analysis for Reverse Osmosis and Nanofiltration Application |
ASTM D 8192 : 2023 | Standard Test Method for Hardness in Colored and Colorless Water |
ASTM D 7365 : 2009 : REV A : R2022 | Standard Practice for Sampling, Preservation and Mitigating Interferences in Water Samples for Analysis of Cyanide |
ASTM D 5257 : 2017 | Standard Test Method for Dissolved Hexavalent Chromium in Water by Ion Chromatography |
ASTM D 5907 : 2018 | Standard Test Methods for Filterable Matter (Total Dissolved Solids) and Nonfilterable Matter (Total Suspended Solids) in Water |
ASTM D 5811 : 2020 | Standard Test Method for Strontium-90 in Water |
ASTM D 888 : 2018 | Standard Test Methods for Dissolved Oxygen in Water |
ASTM D 5174 : 2023 | Standard Test Method for Trace Uranium in Water by Pulsed-Laser Phosphorimetry |
ASTM D 5463 : 2018 | Standard Guide for Use of Test Kits to Measure Inorganic Constituents in Water |
ASTM D 5919 : 1996 : R2022 | Standard Practice for Determination of Adsorptive Capacity of Activated Carbon by a Micro-Isotherm Technique for Adsorbates at ppb Concentrations |
ASTM D 5543 : 2021 | Standard Test Method for Low-Level Dissolved Oxygen in Water |
ASTM D 1067 : 2016 : R2024 | Standard Test Methods for Acidity or Alkalinity of Water |
ASTM D 3454 : 2021 | Standard Test Method for Radium-226 in Water |
ASTM D 8002 : 2024 | Standard Test Method for Modified Fouling Index (MFI-0.45) of Water |
ASTM D 4327 : 2017 | Standard Test Method for Anions in Water by Suppressed Ion Chromatography |
ASTM C 1733 : 2021 | Standard Test Method for Distribution Coefficients of Inorganic Species by Batch Method |
ASTM D 5091 : 2023 | Standard Guide for Water Analysis for Electrodialysis/Electrodialysis Reversal Applications |
ASTM D 3866 : 2018 | Standard Test Methods for Silver in Water |
ASTM D 4189 : 2023 | Standard Test Method for Silt Density Index (SDI) of Water |
ASTM D 6146 : 1997 : R2018 | Standard Guide for Monitoring Aqueous Nutrients in Watersheds |
ASTM D 8084 : 2017 | Standard Test Method for Photoelectrochemical Oxygen Demand of Freshwater Sources for Drinking Water Treatment Plants and Treated Drinking Water |
ASTM D 2972 : 2015 : R2023 | Standard Test Methods for Arsenic in Water |
ASTM D 1293 : 2018 | Standard Test Methods for pH of Water |
ASTM D 1687 : 2017 | Standard Test Methods for Chromium in Water |
ASTM D 4190 : 2015 : R2023 | Standard Test Method for Elements in Water by Direct-Current Plasma Atomic Emission Spectroscopy |
ASTM D 4839 : 2003 : R2024 | Standard Test Method for Total Carbon and Organic Carbon in Water by Ultraviolet, or Persulfate Oxidation, or Both, and Infrared Detection |
ASTM D 6503 : 2024 | Standard Test Method for Enterococci in Water Using Enterolert |
ASTM D 3223 : 2017 | Standard Test Method for Total Mercury in Water |
ASTM D 5173 : 2015 : R2023 | Standard Guide for On-Line Monitoring of Total Organic Carbon in Water by Oxidation and Detection of Resulting Carbon Dioxide |
ASTM D 6157 : 1997 : R2024 | Standard Practice for Determining the Performance of Oil/Water Separators Subjected to a Sudden Release |
ASTM D 1426 : 2015 : R2021 : EDT 1 | Standard Test Methods for Ammonia Nitrogen In Water |
ASTM C 375 : 2022 | Standard Classification of Water Used in Milling of Porcelain Enamel |
ASTM D 7678 : 2017 : R2022 | Standard Test Method for Total Oil and Grease (TOG) and Total Petroleum Hydrocarbons (TPH) in Water and Wastewater with Solvent Extraction using Mid-IR Laser Spectroscopy |
ASTM D 1252 : 2006 : R2020 | Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water |
ASTM D 1253 : 2014 : R2021 : EDT 1 | Standard Test Method for Residual Chlorine in Water |
ASTM D 8516 : 2023 | Standard Test Method for Quantification of Culturable Waterborne Bacteria Using a Defined Culture Medium Coated Plate |
ASTM D 3557 : 2017 | Standard Test Methods for Cadmium in Water |
ASTM D 2035 : 2019 | Standard Practice for Coagulation-Flocculation Jar Test of Water |
ASTM D 5391 : 2023 | Standard Test Method for Electrical Conductivity and Resistivity of a Flowing High Purity Water Sample |
ASTM D 3561 : 2016 : R2021 : EDT 1 | Standard Test Method for Lithium, Potassium, and Sodium Ions in Brackish Water, Seawater, and Brines by Atomic Absorption Spectrophotometry |
ASTM D 6071 : 2014 : R2022 | Standard Test Method for Low Level Sodium in High Purity Water by Graphite Furnace Atomic Absorption Spectroscopy |
ASTM D 1066 : 2018 : EDT 1 | Standard Practice for Sampling Steam |
ASTM D 6504 : 2011 : R2024 | Standard Practice for On-Line Determination of Cation Conductivity in High Purity Water |
ASTM D 3976 : 2022 | Standard Practice for Preparation of Sediment Samples for Chemical Analysis |
ASTM D 6855 : 2017 : R2023 | Standard Test Method for Determination of Turbidity Below 5 NTU in Static Mode |
ASTM D 6317 : 2015 : R2024 | Standard Test Method for Low Level Determination of Total Carbon, Inorganic Carbon and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection |
ASTM D 6919 : 2017 | Standard Test Method for Determination of Dissolved Alkali and Alkaline Earth Cations and Ammonium in Water and Wastewater by Ion Chromatography |
ASTM D 858 : 2017 | Standard Test Methods for Manganese in Water |
ASTM D 1385 : 2007 : R2018 : EDT 1 | Standard Test Method for Hydrazine in Water |
ASTM D 7573 : 2018 : REV A : EDT 1 | Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection |
ASTM D 6104 : 1997 : R2024 | Standard Practice for Determining the Performance of Oil/Water Separators Subjected to Surface Run-Off |
ASTM D 2908 : 1991 : R2024 | Standard Practice for Measuring Volatile Organic Matter in Water by Aqueous-Injection Gas Chromatography |
ASTM D 3920 : 2018 | Standard Test Method for Strontium in Water |
ASTM D 5259 : 2024 | Standard Test Method for Isolation and Enumeration of Enterococci from Water by the Membrane Filter Procedure |
ASTM D 3372 : 2017 | Standard Test Method for Molybdenum in Water |
ASTM D 5072 : 2009 : R2024 | Standard Test Method for Radon in Drinking Water |
ASTM D 6238 : 1998 : R2024 | Standard Test Method for Total Oxygen Demand in Water |
ASTM D 7677 : 2016 : R2023 | Standard Test Method for the Continuous Measurement of Dissolved Ozone in Low Conductivity Water |
ASTM D 8193 : 2018 | Standard Test Method for Total Oil and Grease (TOG) and Total Petroleum Hydrocarbon (TPH) in Water and Wastewater with Solvent Extraction Using Non-Dispersive Mid-IR Transmission Spectroscopy |
ASTM D 511 : 2014 : R2021 : EDT 1 | Standard Test Methods for Calcium and Magnesium In Water |
ASTM D 5904 : 2002 : R2024 | Standard Test Method for Total Carbon, Inorganic Carbon, and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection |
ASTM D 5612 : 1994 : R2018 | Standard Guide for Quality Planning and Field Implementation of a Water Quality Measurement Program |
ASTM D 512 : 2023 | Standard Test Methods for Chloride Ion In Water |
ASTM D 8543 : 2024 | Standard Test Method for Determination of Pesticides and Polychlorinated Biphenyls (PCBs) in Aqueous Solution by a Tandem Gas Chromatography/Mass Spectrometry/Mass Spectrometry (GC/MS/MS) |
ASTM D 1783 : 2001 : R2020 | Standard Test Methods for Phenolic Compounds in Water |
ASTM D 5315 : 2004 : R2024 | Standard Test Method for Determination of N-Methyl-Carbamoyloximes and N-Methylcarbamates in Water by Direct Aqueous Injection HPLC with Post-Column Derivatization |
ASTM D 1890 : 2015 : R2017 | Standard Test Method for Beta Particle Radioactivity of Water |
ASTM D 516 : 2022 | Standard Test Method for Sulfate Ion in Water |
ASTM D 1691 : 2017 | Standard Test Methods for Zinc in Water |
ASTM D 3590 : 2017 | Standard Test Methods for Total Kjeldahl Nitrogen in Water |
ASTM D 3868 : 2015 : R2023 | Standard Test Method for Fluoride Ions in Brackish Water, Seawater, and Brines |
ASTM D 4129 : 2005 : R2020 | Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection |
ASTM D 3986 : 2017 | Standard Test Method for Barium in Brines, Seawater, and Brackish Water by Direct-Current Argon Plasma Atomic Emission Spectroscopy |
ASTM D 5246 : 2024 | Standard Test Method for Isolation and Enumeration of <emph type="ital">Pseudomonas aeruginosa</emph> from Water |
ASTM D 4840 : 1999 : R2018 : EDT 1 | Standard Guide for Sample Chain-of-Custody Procedures |
ASTM D 6530 : 2019 | Standard Test Method for Total Active Biomass in Cooling Tower Waters (Kool Kount Assay; KKA) |
ASTM D 1246 : 2016 : R2021 : EDT 1 | Standard Test Method for Bromide Ion in Water |
ASTM D 1498 : 2014 : R2022 : EDT 1 | Standard Test Method for Oxidation-Reduction Potential of Water |
ASTM D 3645 : 2015 : R2023 | Standard Test Methods for Beryllium in Water |
ASTM D 1291 : 2017 : R2023 | Standard Practice for Estimation of Chlorine Demand of Water |
ASTM D 3649 : 2023 | Standard Practice for High-Resolution Gamma-Ray Spectrometry of Water |
ASTM D 5317 : 2020 | Standard Test Method for Determination of Chlorinated Organic Acid Compounds in Water by Gas Chromatography with an Electron Capture Detector |
ASTM D 6581 : 2018 | Standard Test Methods for Bromate, Bromide, Chlorate, and Chlorite in Drinking Water by Suppressed Ion Chromatography |
ASTM D 1066 : 2018 : R2025 | Standard Practice for Sampling Steam |
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