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Details
1.1 ,These test methods cover the determination of zinc in water. Section 26 on Quality Control pertains to these test methods. Two test methods are given as follows:
| Test Method | Concentration Range | Sections |
| A—,Atomic Absorption, Direct | 0.05 to 2 mg/L | ,8 –, 16 |
| B—,Atomic Absorption, | 20 to 200 μ,g/L | 17 –, 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 ,The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversion 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 6 and 12.7.1, 21.7, 23.10.
1.6 ,Two former colorimetric test methods were discontinued. Refer to Appendix X1 for historical information.
1.7 ,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.
Significance and Use:
4.1 ,Zinc is an essential and beneficial element in body growth. Concentrations above 5 mg/L can cause a bitter astringent taste and opalescence in alkaline waters. The zinc concentration of U.S. drinking waters varies between 0.06 and 7.0 mg/L with a mean of 1.33 mg/L. Zinc most commonly enters the domestic water supply from deterioration of galvanized iron and dezincification of brass. Zinc in water also may result from industrial water pollution.3
4.2 ,ICP-MS or ICP-AES may also be appropriate but at a higher instrument cost. See Test Methods D5673 and D1976.
Additional Info
| Author | American Society for Testing and Materials (ASTM International) |
|---|---|
| Committee | D19.05 - Committee D19 on Water |
| Published by | ASTM |
| Document type | Standard |
| Theme | ,Examination of water for chemical substances |
| ICS | 13.060.50 : Examination of water for chemical substances
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| Number of pages | 8 |
| Replace | ASTM D1691-12 + Redline |
| Set | ASTM Volume 11.01 - Multi-User - Single-Site Online |
| Document history | ,,,, |
| Keyword | D1691 |
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