ASTM D5072-09e1
(Test Method)Standard Test Method for Radon in Drinking Water
Standard Test Method for Radon in Drinking Water
SIGNIFICANCE AND USE
5.1 The most prevalent of the radon isotopes in ground water is 222Rn. This isotope presents the greatest health risk compared to the other naturally occurring radon isotopes if ingested via the water pathway.
SCOPE
1.1 This test method covers the measurement of radon in drinking water in concentrations above 2 Bq/L.
1.2 This test method may be used for absolute measurements by calibrating with a 226Ra standard or for relative measurements by comparing the measurements made with each other.
1.3 This test method is used successfully with drinking water samples and Type III reagent water conforming to Specification D1193. It is the user’s responsibility to ensure the validity of this test method for waters of untested matrices.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 This standard does not purport to address 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.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
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Designation: D5072 − 09
StandardTest Method for
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Radon in Drinking Water
This standard is issued under the fixed designation D5072; 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.
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ε NOTE—Editorial corrections were made throughout in May 2014.
1. Scope D4448GuideforSamplingGround-WaterMonitoringWells
D5847Practice for Writing Quality Control Specifications
1.1 This test method covers the measurement of radon in
for Standard Test Methods for Water Analysis
drinking water in concentrations above 2 Bq/L.
D6001Guide for Direct-Push Groundwater Sampling for
1.2 This test method may be used for absolute measure-
Environmental Site Characterization
226
ments by calibrating with a Ra standard or for relative
D7282Practice for Set-up, Calibration, and Quality Control
measurements by comparing the measurements made with
of Instruments Used for Radioactivity Measurements
each other.
2.2 Other Documents:
1.3 This test method is used successfully with drinking Multi-Agency Radiological LaboratoryAnalytical Protocols
Manual EPA402-B-04-001A, NUREG1576, NTIS
water samples and Type III reagent water conforming to
SpecificationD1193.Itistheuser’sresponsibilitytoensurethe PB2004-105421, July 2004.
validity of this test method for waters of untested matrices.
3. Terminology
1.4 The values stated in SI units are to be regarded as
3.1 Definitions—For definitions of terms used in this test
standard. No other units of measurement are included in this
method, refer to Terminology D1129. For terms not defined in
standard.
this test method or in Terminology D1129, reference may be
1.5 This standard does not purport to address the safety
made to other published glossaries.
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and
4. Summary of Test Method
health practices and determine the applicability of regulatory
4.1 This test method is based on the scintillation counting
limitations prior to use.
222
of Rn and its progeny.
4.2 Inaglassliquidscintillationvial,analiquotofunaerated
2. Referenced Documents
2 water is drawn into a syringe then gently injected beneath 10
2.1 ASTM Standards:
mL of a suitable liquid scintillation cocktail that does not
D1129Terminology Relating to Water
contain an emulsifier. The vials are capped, shaken, and
D1193Specification for Reagent Water
allowed to stand 3 hours prior to counting to permit dark
D2777Practice for Determination of Precision and Bias of
adaptation and buildup of short-lived radon progeny. Radon-
Applicable Test Methods of Committee D19 on Water
222 contained in the sample is selectively partitioned into the
D3370Practices for Sampling Water from Closed Conduits
scintillation cocktail. The sample is counted using a liquid
D3648Practices for the Measurement of Radioactivity
222
scintillation counting system optimized for detection of Rn
D3856Guide for Management Systems in Laboratories
activity.
Engaged in Analysis of Water
5. Significance and Use
1 5.1 The most prevalent of the radon isotopes in ground
This test method is under the jurisdiction ofASTM Committee D19 on Water
222
andisthedirectresponsibilityofSubcommitteeD19.04onMethodsofRadiochemi- water is Rn. This isotope presents the greatest health risk
cal Analysis.
compared to the other naturally occurring radon isotopes if
Current edition approved Feb. 1, 2009. Published March 2009. Originally
ingested via the water pathway.
approved in 1992. Last previous edition approved in 1998 a D5072–98 which was
withdrawn November 2008 and reinstated in March 2009. DOI: 10.1520/D5072-
6. Interferences
09E01.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.1 Other radionuclides soluble in the scintillation cocktail
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
may interfere. High energy beta/gamma emitters, even though
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. theyarenotsolubleinthescintillationmix,mayalsointerfere.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D5072 − 09
These interferences will cause a high bias if present in a 10. Sampling
NOTE1—RefertoPracticesD3370forapplicablesamplinginstructions.
significant quantity. These interferences would be rare in
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Also see U.S. Environmental Protection Agency reports EPA 520 and
drinking water samples but may be observed in some cases.
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EPA 600 .
6.2 Areduced or increased
...
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