ASTM D3920-18
(Test Method)Standard Test Method for Strontium in Water
Standard Test Method for Strontium in Water
SIGNIFICANCE AND USE
5.1 Although most potable supplies contain little strontium, some well waters in the midwestern part of the United States have levels as high as 39 mg/L.3
5.2 This test method affords a reliable means of accurately determining strontium and correcting calcium results obtained by the methods cited in 6.2.
5.3 ICP-MS or ICP-AES may also be appropriate but at a higher instrument cost. See Test Methods D1976 and D5673.
SCOPE
1.1 This test method covers the determination of dissolved and total recoverable strontium in water and wastewater by atomic absorption spectroscopy.
1.2 The test method is applicable in the range from 0.1 to 1 mg/L of strontium. The range may be extended by dilution of the original sample.
1.3 Round-robin data were obtained in natural and reagent water matrices. It is the user's responsibility to ensure the validity of the test method for waters of untested matrices.
1.4 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.
1.5 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. Specific precautionary statements are given in 8.4 and 8.9.
1.6 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.
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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: D3920 − 18
Standard Test Method for
1
Strontium in Water
This standard is issued under the fixed designation D3920; 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* D2777 Practice for Determination of Precision and Bias of
Applicable Test Methods of Committee D19 on Water
1.1 This test method covers the determination of dissolved
D3370 Practices for Sampling Water from Closed Conduits
and total recoverable strontium in water and wastewater by
D4691 Practice for Measuring Elements in Water by Flame
atomic absorption spectroscopy.
Atomic Absorption Spectrophotometry
1.2 The test method is applicable in the range from 0.1 to 1
D4841 Practice for Estimation of Holding Time for Water
mg/L of strontium. The range may be extended by dilution of
Samples Containing Organic and Inorganic Constituents
the original sample.
D5673 Test Method for Elements in Water by Inductively
1.3 Round-robin data were obtained in natural and reagent Coupled Plasma—Mass Spectrometry
D5810 Guide for Spiking into Aqueous Samples
water matrices. It is the user’s responsibility to ensure the
validity of the test method for waters of untested matrices. D5847 Practice for Writing Quality Control Specifications
for Standard Test Methods for Water Analysis
1.4 The values stated in SI units are to be regarded as
standard. The values given in parentheses are mathematical
3. Terminology
conversions to inch-pound units that are provided for informa-
3.1 Definitions:
tion only and are not considered standard.
3.1.1 For definitions of terms used in this standard, refer to
1.5 This standard does not purport to address all of the
Terminology D1129.
safety concerns, if any, associated with its use. It is the
3.2 Definitions of Terms Specific to This Standard:
responsibility of the user of this standard to establish appro-
3.2.1 total recoverable strontium, n—a descriptive term
priate safety, health, and environmental practices and deter-
relating to the forms of strontium that are determinable by the
mine the applicability of regulatory limitations prior to use.
digestion procedure described in this test method.
Specific precautionary statements are given in 8.4 and 8.9.
1.6 This international standard was developed in accor- 3.2.2 laboratory control sample, n—a solution with a certi-
dance with internationally recognized principles on standard- fied concentration of the strontium.
ization established in the Decision on Principles for the
4. Summary of Test Method
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4.1 Strontium is determined by atomic absorption spectro-
Barriers to Trade (TBT) Committee.
photometry.Thesampleisaspiratedintoanair-acetyleneflame
following the addition of lanthanum chloride/potassium chlo-
2. Referenced Documents
ride solution. Samples containing particulate matter that may
2
2.1 ASTM Standards: clogtheaspiratorcapillaryorburner,thusproducinginaccurate
D1129 Terminology Relating to Water results, are filtered through a 0.45-µm membrane filter prior to
D1193 Specification for Reagent Water testing.
D1976 Test Method for Elements in Water by Inductively-
5. Significance and Use
Coupled Argon Plasma Atomic Emission Spectroscopy
5.1 Although most potable supplies contain little strontium,
some well waters in the midwestern part of the United States
1
This test method is under the jurisdiction of ASTM Committee D19 on Water
3
have levels as high as 39 mg/L.
and is the direct responsibility of Subcommittee D19.05 on Inorganic Constituents
in Water.
5.2 This test method affords a reliable means of accurately
Current edition approved Feb. 1, 2018. Published May 2018. Originally
determining strontium and correcting calcium results obtained
approved in 1980. Last previous edition approved in 2012 as D3920 – 12. DOI:
10.1520/D3920-18. by the methods cited in 6.2.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Standard Method for the Examination of Water and Wastewater, 14th Ed.
the ASTM website. American Public Health Assn., Washington, DC 20005.
*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. Uni
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: D3920 − 12 D3920 − 18
Standard Test Method for
1
Strontium in Water
This standard is issued under the fixed designation D3920; 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*
1.1 This test method covers the determination of dissolved and total recoverable strontium in water and wastewater by atomic
absorption spectroscopy.
1.2 The test method is applicable in the range from 0.1 to 1 mg/L of strontium. The range may be extended by dilution of the
original sample.
1.3 Round-robin data were obtained in natural and reagent water matrices. It is the user’s responsibility to ensure the validity
of the test method for waters of untested matrices.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values statedgiven
in each system parentheses are mathematical conversions and may not be exact equivalents; therefore, each system shall be used
independently of the other.to inch-pound units that are provided for information only and are not considered standard.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific precautionary statements are given in 8.4 and 8.9.
1.6 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
D1976 Test Method for Elements in Water by Inductively-Coupled Argon Plasma Atomic Emission Spectroscopy
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
D4691 Practice for Measuring Elements in Water by Flame Atomic Absorption Spectrophotometry
D4841 Practice for Estimation of Holding Time for Water Samples Containing Organic and Inorganic Constituents
D5673 Test Method for Elements in Water by Inductively Coupled Plasma—Mass Spectrometry
D5810 Guide for Spiking into Aqueous Samples
D5847 Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
3. Terminology
3.1 Definitions—Definitions: For definitions of terms used in this test method, refer to Terminology D1129.
3.1.1 For definitions of terms used in this standard, refer to Terminology D1129.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 total recoverable strontium, n—an arbitrary analytical a descriptive term relating to the forms of strontium that are
determinable by the digestion procedure described in this test method.
3.2.2 laboratory control sample, n—a solution with a certified concentration of the strontium.
1
This test method is under the jurisdiction of ASTM Committee D19 on Water and is the direct responsibility of Subcommittee D19.05 on Inorganic Constituents in Water.
Current edition approved Sept. 1, 2012Feb. 1, 2018. Published September 2012 May 2018. Originally approved in 1980. Last previous edition approved in 20072012 as
ɛ1
D3920 – 02 (2007)D3920 – 12. . DOI: 10.1520/D3920-12.10.1520/D3920-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
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
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D3920 − 18
4. Summary of Test Method
4.1 Strontium is determined by atomic absorption spectrophotometry. The sample is aspirated into an air-acetylene flame
following the addition of lanthanum chloride/potassium chloride solution. Samples containing particulate matter that may clog the
aspirator capillary
...
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