Standard Test Methods for Arsenic in Water

SIGNIFICANCE AND USE
4.1 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.
SCOPE
1.1 These test methods2 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 μg/L to 250 μg/L  
7 to 16  
Test Method B—Atomic Absorption,
Hydride Generation  
1 μg/L to 20 μg/L  
17 to 26  
Test Method C—Atomic Absorption,
Graphite Furnace  
5 μg/L to 100 μg/L  
27 to 36  
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 The 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.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see 11.1 and 20.2.  
1.5 This 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.

General Information

Status
Published
Publication Date
30-Nov-2023
Technical Committee
Current Stage
Ref Project

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ASTM D2972-15(2023) - Standard Test Methods for Arsenic in Water
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This 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.
Designation: D2972 − 15 (Reapproved 2023)
Standard Test Methods for
1
Arsenic in Water
This standard is issued under the fixed designation D2972; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
3
2
2.1 ASTM Standards:
1.1 These test methods cover the photometric and atomic
D1129 Terminology Relating to Water
absorption determination of arsenic in most waters and waste-
D1193 Specification for Reagent Water
waters. Three test methods are given as follows:
D2777 Practice for Determination of Precision and Bias of
Concentration Sections
Applicable Test Methods of Committee D19 on Water
Range
Test Method A—Silver Diethyldithio- 5 μg ⁄L to 250 μg ⁄L 7 to 16 D3370 Practices for Sampling Water from Flowing Process
carbamate Colorimetric
Streams
Test Method B—Atomic Absorption, 1 μg ⁄L to 20 μg/L 17 to 26
D3919 Practice for Measuring Trace Elements in Water by
Hydride Generation
Test Method C—Atomic Absorption, 5 μg ⁄L to 100 μg/L 27 to 36
Graphite Furnace Atomic Absorption Spectrophotometry
Graphite Furnace
D4841 Practice for Estimation of Holding Time for Water
Samples Containing Organic and Inorganic Constituents
1.2 The analyst should direct attention to the precision and
D5810 Guide for Spiking into Aqueous Samples
bias statements for each test method. It is the user’s responsi-
D5673 Test Method for Elements in Water by Inductively
bility to ensure the validity of these test methods for waters of
Coupled Plasma—Mass Spectrometry
untested matrices.
D5847 Practice for Writing Quality Control Specifications
1.3 The values stated in SI units are to be regarded as
for Standard Test Methods for Water Analysis
standard. The values given in parentheses are mathematical
E60 Practice for Analysis of Metals, Ores, and Related
conversions to inch-pound units that are provided for informa-
Materials by Spectrophotometry
tion only and are not considered standard.
E275 Practice for Describing and Measuring Performance of
Ultraviolet and Visible Spectrophotometers
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
3.1 Definitions:
priate safety, health, and environmental practices and deter-
3.1.1 For definitions of terms used in these test methods,
mine the applicability of regulatory limitations prior to use.
refer to Terminology D1129.
For specific hazard statements, see 11.1 and 20.2.
3.2 Definitions of Terms Specific to This Standard:
1.5 This international standard was developed in accor-
3.2.1 total recoverable arsenic, n—a descriptive term relat-
dance with internationally recognized principles on standard-
ing to the arsenic forms recovered in the acid-digestion
ization established in the Decision on Principles for the
procedure specified in these test methods.
Development of International Standards, Guides and Recom-
3.2.1.1 Discussion—Some organic-arsenic compounds,
mendations issued by the World Trade Organization Technical
such as phenylarsonic acid, disodium methane arsonate, and
Barriers to Trade (TBT) Committee. dimethylarsonic acid, are not recovered completely during the
digestion step.
4. Significance and Use
1
These test methods are under the jurisdiction of ASTM Committee D19 on
4.1 Herbicides, insecticides, and many industrial effluents
Water and are the direct responsibility of Subcommittee D19.05 on Inorganic
contain arsenic and are potential sources of water pollution.
Constituents in Water.
Current edition approved Dec. 1, 2023. Published December 2023. Originally
Arsenic is significant because of its adverse physiological
approved in 1993. Last previous edition approved in 2015 as D2972 – 15. DOI:
effects on humans.
10.1520/D2972-15R23.
2
Similar to that appearing in Standard Methods for the Examination of Water
3
and Wastewater, 12th edition, APHA, Inc., New York, NY, 1965; and identical with For referenced ASTM standards, visit the ASTM website, www.astm.org, or
that in Brown, E., Skougstad, M. W., and Fishman, M. J., “Methods for Collection contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and Analysis of Water Samples for Dissolved Minerals and Gases,” Techniques of Standards volume information, refer to the standard’s Document Summary page on
Water-Resources Investigations of the U.S. Geological Survey, Book 5, 1970, p. 46. the ASTM website.
...

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