ASTM D3557-02
(Test Method)Standard Test Methods for Cadmium in Water
Standard Test Methods for Cadmium in Water
SCOPE
1.1 These test methods cover the determination of dissolved and total recoverable cadmium in water and wastewater by atomic-absorption spectrophotometry and differential pulse anodic stripping voltammetry. Four test methods are included as follows: Concentration Range SectionsTest Method A—Atomic Absorption, Direct0.05 to 2.0 mg/L7 to 15Test Method B—Atomic Absorption, Chelation-Extraction5 to 200 μg/L16 to 24Test Method C—Differential PulseAnodic Stripping Voltammetry1 to 100 μg/L25 to 34Test Method D—Atomic Absorption, Graphite Furnace2 to 10 μg/L35 to 43
1.2 Test Method B can be used to determine cadmium in brines. It is the user's responsibility to ensure the validity of these test methods for waters of untested matrices.
1.3 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.
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Designation:D 3557–02
Standard Test Methods for
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Cadmium in Water
This standard is issued under the fixed designation D 3557; 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 (e) indicates an editorial change since the last revision or reapproval.
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1. Scope D 1688 Test Methods for Copper in Water
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D 1691 Test Methods for Zinc in Water
1.1 Thesetestmethodscoverthedeterminationofdissolved
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D 1886 Test Methods for Nickel in Water
and total recoverable cadmium in water and wastewater by
D 2777 Practice for Determination of Precision and Bias of
atomic-absorption spectrophotometry and differential pulse
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Applicable Methods of Committee D19 on Water
anodic stripping voltammetry. Four test methods are included
D 3370 Practices for Sampling Water from Closed Con-
as follows:
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duits
Concentration
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Sections
D 3558 Test Methods for Cobalt in Water
Range
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Test MethodA—AtomicAbsorption, 0.05 to 2.0 7 to 15
D 3559 Test Methods for Lead in Water
Direct mg/L
D 3919 Practice for MeasuringTrace Elements inWater by
Test Method B—AtomicAbsorption, 5 to 200 µg/L 16 to 24
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Graphite Furnace Atomic Absorption Spectrophotometry
Chelation-Extraction
Test Method C—Differential Pulse 1 to 100 µg/L 25 to 34
D 4841 Practice for Estimation of Holding Time for Water
Anodic Stripping Voltammetry
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Samples Containing Organic and Inorganic Constituents
Test Method D—AtomicAbsorption, 2 to 10 µg/L 35 to 43
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Graphite Furnace D 5810 Guide for Spiking into Aqueous Samples
D 5847 Practice for Writing Quality Control Specifications
1.2 Test Method B can be used to determine cadmium in
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for Standard Test Methods for Water Analysis
brines. It is the user’s responsibility to ensure the validity of
these test methods for waters of untested matrices.
3. Terminology
1.3 This standard does not purport to address all of the
3.1 Definitions—For definitions of terms used in these test
safety concerns, if any, associated with its use. It is the
methods, 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-
3.2.1 spiking solution—the standard solution added to the
bility of regulatory limitations prior to use.
polarographic cell that is used to quantitate the sample.
3.2.2 stripping peak potential—the applied potential versus
2. Referenced Documents
SCE at which the stripping peak current is a maximum.
2.1 ASTM Standards:
3.2.3 SCE—saturated calomel electrode.
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D 858 Test Methods for Manganese in Water
3.2.4 stripping peak signal—the current measured at the
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D 1066 Practice for Sampling Steam
stripping peak maximum for a metal.
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D 1068 Test Methods for Iron in Water
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D 1129 Terminology Relating to Water
4. Significance and Use
D 1192 Specification for Equipment for Sampling Water
4.1 The test for cadmium is necessary because it is a
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and Steam in Closed Conduits
toxicant and because there is a limit specified for cadmium in
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D 1193 Specification for Reagent Water
potable water in the National Interim Primary Drinking Water
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D 1687 Test Methods for Chromium in Water
Regulations. This test serves to determine whether the cad-
mium content of potable water is above or below the accept-
able limit.
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These test methods are under the jurisdiction of ASTM Committee D19 on
Water and are the direct responsibility of Subcommittee D19.05 on Inorganic
5. Purity of Reagents
Constituents in Water.
Current edition approved March 10, 2002. Published June 2002. Originally
5.1 Reagent grade chemicals shall be used in all tests.
published as D3557–77. Last previous edition D3557–95.
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Platte,J.A.,andMarcy,V.M.,“ANewToolfortheWaterChemist,”Industrial
Water Engineering, May 1965.
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Annual Book of ASTM Standards, Vol 11.01. Annual Book of ASTM Standards, Vol 11.02.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
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D 3557
Unlessotherwiseindicated,itisintendedthatallreagentsshall 9. Interferences
conform to the specifications of the Committee on Analytical
9.1 Calcium concentrations above 1000 mg/L suppress the
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Reagents of the American Chemical Society. Other grades
cadmiumabsorption.At2000mg/Lofcalciumthesuppression
may be used, provided it is first ascertained that the reagent is
is 19%.
of sufficiently high purity to permit its use without lessening
9.2 Sodium, potassium, sulfate, and chloride (9000 mg/L
the accuracy of the determination.
each),magnesium(4500mg/L),iron(4000mg/L),nitrate(100
5.2 Unless otherwis
...
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