ASTM D1691-95
(Test Method)Standard Test Methods for Zinc in Water
Standard Test Methods for Zinc in Water
SCOPE
1.1 These test methods cover the determination of zinc in water. Two test methods are given as follows:SectionsTest Method A-Atomic Absorption, Direct0.05 to 2 mg/L8-16Test Method B-Atomic Absorption, Chelation-Extraction20 to 200 μg/L17-25
1.2 Either dissolved or total recoverable zinc may be determined.
1.3 These test methods have been used successfully with reagent grade water. See the specific test method for applicability to other matrices. It is the user's responsibility to assure the validity of these test methods in other matrices.
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 Section 6 and Note 5, Note 8, and Note 13.
1.5 Two former colorimetric test methods were discontinued. Refer to Appendix X1 for historical information.
General Information
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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NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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.
Designation: D 1691 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Methods for
1
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. Consult the DoD Index of Specifications and
Standards for the specific year of issue which has been adopted by the Department of Defense.
1. Scope D 3370 Practices for Sampling Water from Closed Con-
2
duits
1.1 These test methods cover the determination of zinc in
2
D 3557 Test Methods for Cadmium in Water
water. Two test methods are given as follows:
2
D 3558 Test Methods for Cobalt in Water
2
D 3559 Test Methods for Lead in Water
Sections
D 4841 Practice for Estimation of Holding Time for Water
Test Method A—Atomic Absorption, Direct 0.05 to 2 mg/L 8-16
2
Test Method B—Atomic Absorption, 20 to 200 μg/L 17-25
Samples Containing Organic and Inorganic Constituents
Chelation-Extraction
3. Terminology
1.2 Either dissolved or total recoverable zinc may be deter-
3.1 Definitions: —For definitions of terms used in these test
mined.
1.3 These test methods have been used successfully with methods, refer to Terminology D 1129.
3.2 Definitions of Terms Specific to This Standard:
reagent grade water. See the specific test method for applica-
3.2.1 total recoverable zinc—an arbitrary analytical term
bility to other matrices. It is the user’s responsibility to assure
relating to the recoverable form of zinc that is determinable by
the validity of these test methods in other matrices.
the digestion method which is included in the Procedure.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 Zinc is an essential and beneficial element in body
priate safety and health practices and determine the applica-
growth. Concentrations above 5 mg/L can cause a bitter
bility of regulatory limitations prior to use. For specific hazard
astringent taste and opalescence in alkaline waters. The zinc
statements, see Section 6 and Note 5, Note 8, and Note 13.
concentration of U.S. drinking waters varies between 0.06 and
1.5 Two former colorimetric test methods were discontin-
7.0 mg/L with a mean of 1.33 mg/L. Zinc most commonly
ued. Refer to Appendix X1 for historical information.
enters the domestic water supply from deterioration of galva-
nized iron and dezincification of brass. Zinc in water also may
2. Referenced Documents
3
result from industrial water pollution.
2.1 ASTM Standards:
2
D 858 Test Methods for Manganese in Water
5. Purity of Reagents
2
D 1066 Practice for Sampling Steam
5.1 Reagent grade chemicals shall be used in all tests.
2
D 1068 Test Methods for Iron in Water
Unless otherwise indicated, it is intended that all reagents shall
2
D 1129 Terminology Relating to Water
conform to the specifications of the Committee on Analytical
D 1192 Specification for Equipment for Sampling Water
Reagents of the American Chemical Society, where such
2
and Steam in Closed Conduits
4
specifications are available. Other grades may be used,
2
D 1193 Specification for Reagent Water
provided it is first ascertained that the reagent is of sufficiently
2
D 1687 Test Methods for Chromium in Water
high purity to permit its use without lessening the accuracy of
2
D 1688 Test Methods for Copper in Water
the determination.
2
D 1886 Test Methods for Nickel in Water
5.2 Purity of Water—Unless otherwise indicated, references
D 2777 Practice for Determination of Precision and Bias of
2
Applicable Methods of Committee D-19 on Water
3
“Standard Methods for the Examination of Water and Wastewater,” 16th
edition, 1985, APHA, AWWA-WPCF.
1
4
These test methods are under the jurisdiction of ASTM Committee D-19 on
Reagent Chemicals, American Chemical Society Specifications, American
Water and are the direct responsibility of Subcommittee D19.05 on Inorganic Chemical Society, Washington, DC. For suggestions on the testing of reagents not
Constituents in Water. listed by the American Chemical Society, see Analar Standards for Laboratory
Current edition approved Sept. 10, 1995. Published November 1995. Originally Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
published as D 1691 – 59 T. Last previous edition D 1691 – 90. and National Formulary, U.S. Pharmaceutical Convention,
...
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