ASTM Standard will test coatings for sewer environments.
Press Release Summary:
ASTM WK33537, Practice for Operating the Severe Wastewater Analysis Testing Apparatus, covers apparatus and set of procedures that are used to create and maintain simulated sewer headspace environment to be used to test potential coatings. Testing is done with liquid phase containing prescribed acid and saline solution, and vapor phase consisting of air, humidity, and concentrated sewer gas. Temperature of test chamber is elevated to create accelerated conditions and reaction rates.
Original Press Release:
Proposed ASTM Metal Corrosion Standard Will Test Potential Coatings for Sewer Environments
W. CONSHOHOCKEN, Pa., —The headspace in domestic wastewater collection and treatment systems is a severe environment that can impact even high performance protective coatings. A proposed new ASTM International standard covers an apparatus and set of procedures that are used to create and maintain a simulated sewer headspace environment to be used to test potential coatings.
ASTM WK33537, Practice for Operating the Severe Wastewater Analysis Testing Apparatus, is being developed by Subcommittee G01.05 on Laboratory Corrosion Tests, part of ASTM International Committee G01 on Corrosion of Metals.
The apparatus described in ASTM WK33537 is designed to simulate the pertinent attributes of a typical domestic sewer wastewater headspace found in a sewer. Testing is done within two phases in the chamber: a liquid phase containing a prescribed acid and saline solution; and a vapor phase consisting of air, humidity and concentrated sewer gas, which is composed of hydrogen sulfide, carbon dioxide and methane gases.
The temperature of the test chamber is elevated to create accelerated conditions and reaction rates.
While certain chemical and physical properties of coating systems can be determined in laboratories, testing with the apparatus and procedures described in ASTM WK33537 will provide a more accurate simulation of the environment of an actual sewer system.
All interested parties are invited to participate in the standards developing activities of G01.05.
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 largest international standards development and delivery systems in the world. 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.
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ASTM Committee G01 Next Meeting: Nov. 12-14, 2013, November Committee Week, Jacksonville, Fla.
Technical Contact: Vaughn O’Dea, Tnemec Co. Inc., Kansas City, Mo., Phone: 816-519-2267; odea@tnemec.comÂ
ASTM Staff Contact: Jennifer Rodgers, Phone: 610-832-9694; jrodgers@astm.orgÂ
ASTM PR Contact: Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org
