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ASTM Committee D18 on Soil and Rock is developing a proposed new standard, WK21484 , Practice for Nuclear Gauge Calibration. The proposed standard is under the jurisdiction of Subcommittee D18.08 on Special and Construction Control Tests. Dan Pratt, senior nuclear project physicist, Troxler Electronic Laboratories Inc., and D18 member, says that two motivating factors are guiding the development…
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A request from the United States Navy was the impetus behind the development of a new ASTM International standard, E2630 , Test Method for Luminance Ratio of a Fluorescent Specimen Using a Narrow Band Source. The new standard was developed by Subcommittee E12.05 on Fluorescence, part of ASTM International Committee E12 on Color and Appearance. Richard Harold, consultant, Color and Appearance…
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A proposed new practice being developed by ASTM Subcommittee D18.21 on Ground Water and Vadose Zone Investigations will cover techniques for actively collecting soil gas samples from the vadose zone beneath buildings. WK18835 , Practice for Active Soil Gas Sampling in the Vadose Zone for Vapor Intrusion Evaluations, is under the jurisdiction of ASTM International Committee D18 on Soil and Rock.…
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First generation gonioapparent colorants are materials pigmented with metal flakes that change lightness as illumination angles change. Used heavily in automotive coatings, the first generation of gonioapparent materials was covered by ASTM International standard E2194 , Practice for Multiangle Color Measurement of Metal Flake Pigmented Materials, first published in 2003. Now, a second generation…
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An innovative system that can be used to test and compare sediment control products has been approved as a new ASTM International standard by Committee D18 on Soil and Rock. The standard, D 7351 , Test Method for Determination of Sediment Retention Device Effectiveness in Sheet Flow Applications, is under the jurisdiction of Subcommittee D18.25 on Erosion and Sediment Control Technology. Even…
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A new ASTM standard, D 7401, Test Methods for Laboratory Determination of Rock Anchor Capacities by Pull and Drop Tests, is the result of requests to standardize a test to determine dynamic rock anchor capacity that is used internationally in the mining industry. The new test method was developed by Subcommittee D18.12 on Rock Mechanics, part of ASTM International Committee D18 on Soil and Rock.…
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A proposed new ASTM International standard will fill a need for a reliable method for measuring beryllium at various levels in soil samples that does not require the use of aggressive digestion methods involving strong acids. The proposed standard, WK17600 , Test Method for Determination of Beryllium in Soil, Rock, Sediment and Fly Ash Using Field-Based Extraction and Fluorescence Detection, is…
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ASTM International Committee E12 on Color and Appearance has approved a new standard that describes techniques for planning and analyzing the results of an interlaboratory study conducted for certain test methods within E12. E 2480 , Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method with Multi-Valued Measurands, is under the jurisdiction of Subcommittee…
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A new standard recently approved by ASTM International Committee D18 on Soil and Rock is the result of requests from the Indiana Department of Transportation and the U.S. Bureau of Reclamation for an effective test method to cover the determination of the maximum dry unit weight and water content range for effective compaction of granular soils. D 7382 , Test Methods for Determination of Maximum…
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A new ASTM International standard, D 7367 , Test Method for Determining Water Holding Capacity of Fiber Mulches for Hydraulic Planting, will provide a means of evaluating water holding capacity in fiber mulches. The standard has been developed by Subcommittee D18.25 on Erosion and Sediment Control Technology, part of ASTM International Committee D18 on Soil and Rock. According to Becky Gauthier…