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ASTM International Committee D35 on Geosynthetics is currently developing a proposed new standard that covers the test procedure for evaluating the effectiveness of prefabricated vertical drains to enhance the consolidation of soils under specified conditions. The proposed standard, WK13402 , Test Method for Large Scale Consolidation Test for Prefabricated Vertical Drains, is under the…
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ASTM International Committee F40 on Declarable Substances in Materials has recently approved its second standard, F 2577 , Guide for Assessment of Materials and Products for Declarable Substances. The guide, which is under the jurisdiction of Subcommittee F40.02 on Management Practices and Guides, follows F 2576 , Terminology Relating to Declarable Substance in Materials, which was approved in…
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ASTM International Committee E18 on Sensory Evaluation has been working on developing a series of widely used, fundamental discrimination tests into ASTM International standards. Some of these tests that are now approved standards include E2263 , Standard Test Method for Paired Preference Test, E 2139, Test Method for Same-Different Test, and E 1885 , Test Method for Sensory Analysis-Triangle…
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The increased use of geomembranes as barrier materials to restrict liquid migration from one location to another created a need for a test method to evaluate the quality of geomembrane seams produced by tape methods. ASTM International Committee D35 on Geosynthetics has met this need with the approval of the new standard D 7272 , Test Method for Determining the Integrity of Seams Used in Joining…
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ASTM International Committee D35 on Geosynthetics has developed a new standard that is an important step toward the improvement of filtration design for non-woven geotextiles. The standard, D 7178 , Practice for Determining the Number of Constrictions “, m, ” of Non-Woven Geotextiles as a Complementary Filtration Property, will provide engineers and researchers a common basis for accurate determination of an important products property. Practice D 7178 is under the jurisdiction of Subcommittee D35.03 on Permeability and Filtration. Practice D 7178 describes the procedure used along with existing test methods to determine the number of…
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ASTM International Committee F40 on Declarable Substances in Materials has recently approved their first standard, F 2576 , Terminology Relating to Declarable Substances in Materials. The standard, which will serve as the committee’s lexicon of terms, abbreviations and units, is under the jurisdiction of Subcommittee F40.91 on Terminology. Nine terms are listed in the standard, which will be…
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Technical issues with test methods and reference materials identified by ASTM Committee F40 on Declarable Substances in Materials will be among the topics discussed at a workshop hosted by the National Institute of Standards and Technology (NIST) in October. The goal of the workshop is to assist U.S. manufacturers and their supply chains in meeting new environmental regulations that restrict the…
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ASTM International Committee E18 on Sensory Evaluation of Materials and Products is currently working on a proposed new standard, WK8435, Practice/Guide for Measuring and Tracking Sensory Descriptive Panel and Panelist Performance. WK8435 will be used to assist sensory professionals in selecting, screening, and identifying training needs for new and existing panels and assessors. In addition,…
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ASTM Committee D35 on Geosynthetics will present a workshop on the possibility of creating a Geogrid Aperture Stability standard during the June Committee Week in Reno, Nev. The workshop will take place June 15 from 6:00 p.m. to 7:30 p.m. Steve Valero, Vice President - Technology, Tensar, will chair the workshop. Valero promises a productive and lively workshop that will be focused on educating…
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ASTM Committee E18 on Sensory Evaluation of Materials and Products is currently working on a proposed new standard that outlines the experience and education necessary to become a sensory professional. The proposed standard, WK7661, is tentatively titled Guide for Sensory Proficiency, and is under the jurisdiction of Subcommittee E18.05 on Sensory Applications General -- General . According to…