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ASTM Precast Concrete Committee Developing Proposed Standard for Precast Concrete Retaining ...

2013-08-01 06:00:00| Industrial Newsroom - All News for Today

ASTM WK38192, Specification for Wet-Cast Precast Modular Block Retaining Wall Units, is being developed by Subcommittee C27.20. According to C27 member Clint Hines, "This standard will set requirements for dimensional tolerances of individual block units and lifting device requirements for improved safety in handling and installation." Hines also noted this standard will, among other things, eliminate use of reconstituted ready-mixed concrete in production of block units. This story is related to the following:Trade Associations

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Three Proposed ASTM Standards to Cover Antimicrobial Efficacy of Solid Copper Materials

2013-08-01 06:00:00| Industrial Newsroom - All News for Today

Subcommittee B05.06, part of ASTM Committee B05 on Copper and Copper Alloys, is developing ASTM WK42235, Test Method for Efficacy of Copper Alloy Surfaces as a Sanitizer; ASTM WK42244, Test Method for Residual Self-Sanitizing Activity of Copper Alloy Surfaces; and ASTM WK42247, Test Method for Continuous Reduction of Bacterial Contamination on Copper Alloy Surfaces. Developed in conjunction with EPA, standards will provide base for evaluation of antimicrobial efficacy of solid copper materials. ...This story is related to the following:Green & CleanSearch for suppliers of:

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Proposed Method for Extracting Liquid Gas Would Trap CO2 Deep Underground

2013-07-31 16:32:00| Climate Ark Climate Change & Global Warming Newsfeed

Nature World News: A new technique for trapping the greenhouse gas carbon dioxide deep underground could simultaneously be used to release the last remains of natural gas liquids from dwindling reservoirs, reports a new paper in the journal International Journal of Oil, Gas and Coal Technology. The method, the authors argue, could be used to offset a portion of the environmental impact of burning fossil fuels. While so-called "fracking" has dominated headlines of late, there are alternatives to obtaining the remaining...

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Process Puzzler: Veto the Proposed Vent Scrubber

2013-07-31 06:00:00| Chemical Processing

THIS MONTH'S PUZZLER We're trying to settle a dispute between our on-site contractor and the company designing a vent scrubber for our alkylation spent acid tanks. The design basis is a flow of 3,500 pounds per hour (pph) of a stream containing H2S (about 60 pph), N2, water, O2, 1,3...

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Proposed ASTM Metal Corrosion Standard Will Test Potential Coatings for Sewer Environments

2013-07-31 06:00:00| Industrial Newsroom - All News for Today

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. This story is related to the following:Trade Associations

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