ASTM D2972-08
(Test Method)Standard Test Methods for Arsenic in Water
Standard Test Methods for Arsenic in Water
SIGNIFICANCE AND USE
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 methods cover the photometric and atomic absorption determination of arsenic in most waters and wastewaters. Three test methods are given as follows:
Concentration
RangeSections Test Method A—Silver Diethyldithio-
carbamate Colorimetric5 to 250 μg/L 7 to 15 Test Method B—Atomic Absorption,
Hydride Generation1 to 20 μg/L16 to 24 Test Method C—Atomic Absorption, Graphite Furnace5 to 100 μg/L25 to 33
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. No other units of measurement are included in this 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Note 1 and Note 6.
7.1 This test method covers the determination of dissolved and total recoverable arsenic in most waters and waste waters in the range from 5 to 250 μg/L of arsenic.
7.2 The precision and bias data were obtained on reagent water, river water, and process water. The information on precision and bias may not apply to other waters. It is the user's responsibility to ensure the validity of this test method for waters of untested matrices.
17.1 This test method covers the determination of dissolved and total recoverable arsenic in most waters and wastewaters in the range from 1 to 20 μg/L of arsenic. The range may be extended by dilution of the sample.
17.2 The precision and bias data were obtained on reagent water, tap water, salt water, river water, and untreated wastewater. The information on precision and bias may not apply to other waters. It is the user's responsibility to ensure the validity of this test method for waters of untested matrices.
27.1 This test method covers the determination of dissolved and total recoverable arsenic in most waters and wastewaters.
27.2 This test method is applicable in the range from 5 to 100 μg/L of arsenic using a 20-μL injection. The range can be increased or decreased by varying the volume of sample injected or the instrumental settings. High concentrations may be diluted but preferably should be analyzed by the atomic absorption-hydride method.
27.3 This test method has been used successfully with reagent water, lake water, river water, well water, filtered well water, and condensate from a medium Btu coal gasification process. It is the user's responsibility to ensure the validity of the test method to other matrices.
27.4 The analyst is encouraged to consult Practice D 3919 for a general discussion of interferences and sample analysis procedures for graphite furnace atomic absorption spectrophotometry. ^REFERENCE:
ASTM Standards:
D 1129 Terminology Relating to Water
D 1193 Specification for Reagent Water
D 2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
D 3370 Practices for Sampling Water from Closed Conduits
D 3919 Practice for Measuring Trace Elements in Water by Graphite Furnace Atomic Absorption Spectrophotometry
D 4841 Practice for Estimation of Holding Time for Water Samples Containing Organic and Inorganic Constituents
D 5810 Guide for Spiking into Aqueous Samples
D 5847 Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
E 60 Practice for Analysis of Metals, Ores, and Related Materials by Molecular Absorption Sp...
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Designation: D2972 − 08
StandardTest 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.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D1193Specification for Reagent Water
2
D2777Practice for Determination of Precision and Bias of
1.1 These test methods cover the photometric and atomic
Applicable Test Methods of Committee D19 on Water
absorption determination of arsenic in most waters and waste-
D3370Practices for Sampling Water from Closed Conduits
waters. Three test methods are given as follows:
D3919Practice for Measuring Trace Elements in Water by
Concentration Sections
Graphite Furnace Atomic Absorption Spectrophotometry
Range
Test Method A—Silver Diethyldithio- 5 to 250 µg/L 7 to 15
D4841Practice for Estimation of Holding Time for Water
carbamate Colorimetric
Samples Containing Organic and Inorganic Constituents
Test Method B—Atomic Absorption, 1to20µg/L 16to24
Hydride Generation
D5810Guide for Spiking into Aqueous Samples
Test Method C—Atomic Absorption, 5to100 µg/L 25to33
D5847Practice for Writing Quality Control Specifications
Graphite Furnace
for Standard Test Methods for Water Analysis
1.2 The analyst should direct attention to the precision and
E60Practice for Analysis of Metals, Ores, and Related
bias statements for each test method. It is the user’s responsi-
Materials by Spectrophotometry
bility to ensure the validity of these test methods for waters of
E275PracticeforDescribingandMeasuringPerformanceof
untested matrices.
Ultraviolet and Visible Spectrophotometers
1.3 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
3. Terminology
standard.
3.1 Definitions of Terms Specific to This Standard:
1.4 This standard does not purport to address all of the
3.1.1 For definitions of terms used in these test methods
safety concerns, if any, associated with its use. It is the
refer to Terminology D1129.
responsibility of the user of this standard to establish appro-
3.2 Definitions of Terms Specific to This Standard:
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For specific hazard
3.2.1 total recoverable arsenic—anarbitraryanalyticalterm
statements, see Note 1 and Note 6.
relating to the forms of arsenic that are determinable by the
digestion method which is included in the procedure. Some
2. Referenced Documents
organic-arsenic compounds, such as phenylarsonic acid, diso-
3
2.1 ASTM Standards:
dium methane arsonate, and dimethylarsonic acid, are not
D1129Terminology Relating to Water
recovered completely during the digestion step.
1
These test methods are under the jurisdiction of ASTM Committee D19 on
4. Significance and Use
Water and are the direct responsibility of Subcommittee D19.05 on Inorganic
Constituents in Water.
4.1 Herbicides, insecticides, and many industrial effluents
Current edition approved Oct. 1, 2008. Published October 2008. Originally
contain arsenic and are potential sources of water pollution.
approved in 1993. Last previous edition approved in 2003 as D2972–03. DOI:
10.1520/D2972-08.
Arsenic is significant because of its adverse physiological
2
Similar to that appearing in Standard Methods for the Examination of Water
effects on humans.
and Wastewater, 12th edition,APHA, Inc., NewYork, NY, 1965, and identical with
that in Brown, Eugene, Skougstad, M. W., and Fishman, M. J., “Methods for
Collection and Analysis of Water Samples for Dissolved Minerals and Gases,”
5. Purity of Reagents
Techniques of Water-Resources Investigations of the U.S. Geological Survey, Book
5, 1970 p. 46.
5.1 Reagent grade chemicals shall be used in all tests.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Unlessotherwiseindicated,itisintendedthatallreagentsshall
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
conform to the specifications of the Committee on Analytical
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Reagents of the American Chemical Society, where such
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D2972 − 08
4
specifications are available. Other grades may be used, pro- 9. Interferences
vided it is first ascertained that the reagent is of sufficiently
9.1 Although many samples are relatively free of
high purity to permit its use wit
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D2972–03 Designation:D2972–08
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.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope *
2
1.1 These test methods cover the photometric and atomic absorption determination of arsenic in most waters and wastewaters.
Three test methods are given as follows:
Concentration Sections
Range
Test Method A—Silver Diethyldithio- 5 to 250 µg/L 7 to 15
carbamate Colorimetric
Test Method B—Atomic Absorption, 1to20µg/L 16to24
Hydride Generation
Test Method C—Atomic Absorption, 5to100 µg/L 25to33
Graphite Furnace
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
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 and health practices and determine the applicability of regulatory
limitations prior to use. For specific hazard statements, see Note 1 and Note 6.
2. Referenced Documents
3
2.1 ASTM Standards:
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
D3370 Practices for Sampling Water from Closed Conduits
D3919 Practice for Measuring Trace Elements in Water by Graphite Furnace Atomic Absorption Spectrophotometry
D4841 Practice for Estimation of Holding Time for Water Samples Containing Organic and Inorganic Constituents
D5810 Guide for Spiking into Aqueous Samples
D5847 Practice for the Writing Quality Control Specifications for Standard Test Methods for Water Analysis
E60Practice for Photometric and Spectrophotometric Methods for Chemical Analysis of Metals Practice for Analysis of
Metals, Ores, and Related Materials by Molecular Absorption Spectrometry
E275 Practice for Describing and Measuring Performance of Ultraviolet, Visible, and Near-Infrared Spectrophotometers
3. Terminology
3.1 Definitions of Term Specific to This Standard:
3.1.1 For definitions of terms used in these test methods refer to Terminology D1129.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 total recoverable arsenic—an arbitrary analytical term relating to the forms of arsenic that are determinable by the
digestion method which is included in the procedure. Some organic-arsenic compounds, such as phenylarsonic acid, disodium
1
These test methods are under the jurisdiction ofASTM Committee D19 on Water and are the direct responsibility of Subcommittee D19.05 on Inorganic Constituents
in Water.
Current edition approved Jan. 10, 2003.Oct. 1, 2008. Published January 2003.October 2008. Originally approved in 1993. Last previous edition approved in 19972003
as D2972–97.D2972–03.
2
Similar to that appearing in Standard Methods for the Examination of Water and Wastewater, 12th edition, APHA, Inc., New York, NY, 1965, and identical with that
in Brown, Eugene, Skougstad, M. W., and Fishman, M. J., “Methods for Collection and Analysis of Water Samples for Dissolved Minerals and Gases,” Techniques of
Water-Resources Investigations of the U.S. Geological Survey, Book 5, Chapter , 1970 p. 46.
3
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
, Vol 11.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D2972–08
methane arsonate, and dimethylarsonic acid, are not recovered completely during the digestion step.
4. 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.
5. Purity of Reagent
...
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