ASTM D1691-02

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Designation:D 1691–02
Standard Test Methods for
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Zinc in Water
This standard is issued under the fixed designation D 1691; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
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1. Scope D 1886 Test Methods for Nickel in Water
D 2777 Practice for Determination of Precision and Bias of
1.1 These test methods cover the determination of zinc in
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Applicable Methods of Committee D19 on Water
water. Two test methods are given as follows:
D 3370 Practices for Sampling Water from Closed Con-
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duits
Sections
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D 3557 Test Methods for Cadmium in Water
Test Method A—Atomic Absorption, Direct 0.05 to 2 mg/L 8-16
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Test Method B—Atomic Absorption, 20 to 200 µg/L 17-25
D 3558 Test Methods for Cobalt in Water
Chelation-Extraction
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D 3559 Test Methods for Lead in Water
1.2 Either dissolved or total recoverable zinc may be deter-
D 4841 Practice for Estimation of Holding Time for Water
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mined. Samples Containing Organic and Inorganic Constituents
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1.3 These test methods have been used successfully with
D 5810 Guide for Spiking into Aqueous Samples
reagent grade water. See the specific test method for applica- D 5847 Practice for Writing Quality Control Specifications
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bility to other matrices. It is the user’s responsibility to assure
for Standard Test Methods for Water Analysis
the validity of these test methods in other matrices.
3. Terminology
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 3.1 Definitions: —For definitions of terms used in these test
responsibility of the user of this standard to establish appro- methods, refer to Terminology D 1129.
priate safety and health practices and determine the applica- 3.2 Definitions of Terms Specific to This Standard:
bility of regulatory limitations prior to use. For specific hazard 3.2.1 total recoverable zinc—an arbitrary analytical term
statements, see Section 6 and Note 5, Note 8, and Note 13.
relating to the recoverable form of zinc that is determinable by
1.5 Two former colorimetric test methods were discontin- the digestion method which is included in the Procedure.
ued. Refer to Appendix X1 for historical information.
4. Significance and Use
2. Referenced Documents
4.1 Zinc is an essential and beneficial element in body
2.1 ASTM Standards: growth. Concentrations above 5 mg/L can cause a bitter
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D 858 Test Methods for Manganese in Water astringent taste and opalescence in alkaline waters. The zinc
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D 1066 Practice for Sampling Steam concentration of U.S. drinking waters varies between 0.06 and
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D 1068 Test Methods for Iron in Water 7.0 mg/L with a mean of 1.33 mg/L. Zinc most commonly
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D 1129 Terminology Relating to Water enters the domestic water supply from deterioration of galva-
D 1192 Specification for Equipment for Sampling Water nized iron and dezincification of brass. Zinc in water also may
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and Steam in Closed Conduits result from industrial water pollution.
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D 1193 Specification for Reagent Water
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5. Purity of Reagents
D 1687 Test Methods for Chromium in Water
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5.1 Reagent grade chemicals shall be used in all tests.
D 1688 Test Methods for Copper in Water
Unless otherwise indicated, it is intended that all reagents shall
conform to the specifications of the Committee on Analytical
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These test methods are under the jurisdiction of ASTM Committee D19 on Reagents of the American Chemical Society, where such
Water and are the direct responsibility of Subcommittee D19.05 on Inorganic
Constituents in Water.
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Current edition approved March 10, 2002. Published May 2002. Originally Annual Book of ASTM Standards, Vol 11.02.
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published as D 1691 – 59 T. Last previous edition D 1691 – 95. “Standard Methods for the Examination of Water and Wastewater,” 16th
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Annual Book of ASTM Standards, Vol 11.01. edition, 1985, APHA, AWWA-WPCF.
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D 1691–02
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specifications are available. Other grades may be used, pro- Methods D 1688), iron (Test Methods D 1068), lead (Test
vided it is first ascertained that the reagent is of sufficiently Methods D 3559), manganese (Test Methods D 858), and
high purity to permit its use without lessening the accuracy of nickel (Test Methods D 1886).
the determination.
5.2 Purity of Water—Unless otherwise indicated, references 10. Interferences
towatershallbeunderstoodtomeanreagentwaterconforming
10.1 Sodium, potassium, sul
...