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ASTM developing proposed nitrate reductase standard.

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Press Release Summary:

January 23, 2014 - Proposed ASTM WK27289, Test Methods for Nitrite-Nitrate in Water by Nitrate Reductase, will present a means to perform nitrate analysis of water without the use of hazardous chemicals. According to William Lipps, vice chairman of Subcommittee D19.05 on Inorganic Constituents in Water, part of ASTM International Committee D19 on Water, new standard will enable testing laboratories with discrete analyzers to eliminate cadmium reduction methods with a more reliable means to measure nitrate.

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Original Press Release

ASTM Water Committee Developing Proposed Nitrate Reductase Standard

Press release date: January 17, 2014

W. CONSHOHOCKEN, Pa., —A proposed new ASTM International test method will present a means to perform nitrate analysis of water without the use of hazardous chemicals. ASTM WK27289, Test Methods for Nitrite-Nitrate in Water by Nitrate Reductase, is being developed by Subcommittee D19.05 on Inorganic Constituents in Water, part of ASTM International Committee D19 on Water.

William Lipps, business unit manager (environmental/chemical), Shimadzu, and vice chairman, D19, says that nitrate reductase is used to reduce nitrate to nitrite in ASTM WK27289. In addition, nitrate reductase replaces cadmium, a toxic heavy metal, or hydrazine, which is explosive and a carcinogen, in nitrate analysis.

According to Lipps, the proposed reductase method is well adapted to discrete analyzers, a new type of instrument that can be used for rapid, low cost colorimetric testing of nutrients in water.

“This proposed new standard will enable testing laboratories with discrete analyzers to eliminate cadmium reduction methods with a more reliable means to measure nitrate,” says Lipps.

Lipps notes that the primary users of the proposed standard, once it has been approved, will be testing laboratories. Results obtained from tests using the standard will be used to inform consumers, manufacturers and regulatory agencies whether the water tested meets certain criteria, for example a drinking water limit of 10 mg/L for nitrate nitrogen, which is regulated in drinking water and in wastewater effluents.

All interested parties are invited to join in the standards developing activities of D19.05. The subcommittee is currently seeking participation in the development of standards for total nitrogen, online nutrient analysis and analysis of tracking solutions.

To purchase ASTM standards, visit www.astm.org and search by the standard designation, or contact ASTM Customer Relations (phone: 877-909-ASTM; sales@astm.org). ASTM International welcomes participation in the development of its standards. For more information on becoming an ASTM member, visit www.astm.org/JOIN.

ASTM International is one of the world’s largest development and delivery systems of standards and related products and services. ASTM International meets the World Trade Organization (WTO) principles for the development of international standards: coherence, consensus, development dimension, effectiveness, impartiality, openness, relevance and transparency. ASTM standards are accepted and used in research and development, product testing, quality systems and commercial transactions.

For more news in this sector, visit www.astm.org/sn-environmental or follow us on Twitter @ASTMEnvironment.

ASTM Committee D19 Next Meeting: June 1-5, 2014, Lakewood, Colo.
Technical Contact: William Lipps, Shimadzu, Phone: 410-381-1227; wclipps@shimadzu.com
ASTM Staff Contact: Alyson Fick, Phone: 610-832-9710; afick@astm.org 
ASTM PR Contact: Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org

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