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ASTM International’s water committee ( D19 ) has approved a new standard that will help water producers and users identify and quantify bacteria in potable (drinking, dental, and bottled water) as well as nonpotable water (cooling towers). Heterotrophic bacteria count (HPC) determines the overall number of bacteria in a water sample, allowing water system managers and water treatment…, Media Inquiries:, Gavin O’Reilly, tel +1.610.832.9618; goreilly@astm.org, Committee Contact:, Brian Milewski, tel +1.610.832.9619; bmilewski@astm.org Release #11735 ###
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ASTM International’s concrete and concrete aggregates committee ( C09 ) is developing a proposed standard ( WK73384 ) that will evaluate the tensile performance of fiber-reinforced concrete using cylindrical specimens with double-punch loading. The proposed standard contains “pre- and post-peak tensile properties (that) hold great significance in fiber-reinforced concrete (FRC) and ultra-high-…, Media Inquiries:, Gavin O’Reilly, tel +1.610.832.9618; goreilly@astm.org, Committee Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #11676 ###
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ASTM International’s concrete and concrete aggregates committee ( C09 ) is developing a proposed standard specification for a broad range of supplementary cementitious materials (SCMs). According to ASTM International member Larry Sutter, this performance specification ( WK70466 ) will ease the adoption of new materials used for SCMs as established sources become less available. “For a variety of…, Media Inquiries:, Gavin O’Reilly, tel +1.610.832.9618; goreilly@astm.org, Committee Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #11659 ###
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Two proposed standards from ASTM International’s water committee ( D19 ) are devoted to different aspects of water quality. The first proposed standard ( WK68866 ) will provide a screening method to assess contaminants in water samples prior to a more detailed analysis. If approved, this standard will cover the determination of adsorbable organic fluorine (AOF) in waters and waste waters that can…, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Committee Contact:, Brian Milewski, tel +1.610.832.9619; bmilewski@astm.org Release #11643 ###
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ASTM International’s concrete and concrete aggregates committee ( C09 ) is developing a proposed standard that will be used to help measure the tensile strength of fiber reinforced concrete. According to ASTM International member Luke Pinkerton, the use of fiber reinforcement as an alternative to conventional reinforcement of various concrete structures has been limited in the construction…, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Committee Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #11599 ###
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ASTM’s water committee ( D19 ) has approved a new standard that will help ensure compliance with drinking water quality requirements, minimize environmental impact, and protect public health. The new standard, published as D8431 , is based on the HORIBA A-TEEM spectroscopy technique. It will be used at treatment plants for drinking water as a first line of defense for detecting petroleum product…, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Committee Contact:, Brian Milewski, tel +1.610.832.9619; bmilewski@astm.org Release #11506 ###,
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ASTM International’s concrete and concrete aggregates committee ( C09 ) is developing a new standard for economical testing of concrete strength. The proposed standard, WK82351 , will provide a fast, simple, non-destructive method for testing concrete strength that can be performed almost anywhere. According to ASTM International member Neil Cox this method, which measures the dominant resonant…, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Committee Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #11488 ###
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A new ASTM International standard provides a test method for finding low concentrations of nitrosamines, a suspected type of carcinogen, in water. The standard ( D8456 ) was developed by ASTM’s water committee ( D19 ). Nitrosamines exist in low concentrations in water, foods, vegetables, and dairy products. According to ASTM International member William Lipps, this standard presents a relatively…, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Committee Contact:, Brian Milewski, tel +1.610.832.9619; bmilewski@astm.org Release #11486 ###
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ASTM International’s water committee ( D19 ) is working to reinstate a standard used in the desalination (the removal of salts and other materials) of seawater. The proposed standard ( WK80178 ) will replace a discontinued standard using the Stiff and Davis stability index for reverse osmosis. The Stiff and Davis index is an easy way to calculate calcium carbonate scaling tendencies in brines.…
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ASTM International’s water committee ( D19 ) is developing a proposed standard that water quality laboratories will use to help ensure that environmental regulations for water are met. According to ASTM International member Linxi Chen, the proposed standard will provide an early warning prediction from raw source water of disinfection byproducts (DBPs). DBPs are cancer-causing contaminants in…