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In many testing laboratories, it can be necessary to qualify a new test method, instrument or lab itself with respect to one or more performance characteristics. One such key characteristic is bias, or mutual agreement of average test results run on the same material. A proposed ASTM standard will aid in the determination of bias equivalency. ASTM WK37659 , Guide for Testing for Bias Equivalency…
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For several years, ASTM International Committee E11 on Quality and Statistics has been preserving military sampling standards no longer supported by the U.S. Department of Defense. The latest ASTM standard to emerge from this program is ASTM E2819 , Practice for Single- and Multi-Level Continuous Sampling of a Stream of Product by Attributes Indexed by AQL. “The reason for preserving military…
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Interested parties are invited to join in the development of a new proposed standard being developed by ASTM International Committee E11 on Quality and Statistics . ASTM WK32565 , Guide for the Use of Non-Parametric Statistical Methods, is under the jurisdiction of Subcommittee E11.10 on Sampling/Statistics . According to Stephen Luko, statistician, Hamilton Sundstrand, Shared Engineering…, ASTM Committee E11 Next Meeting:, Oct. 26-28, 2011, ASTM International Headquarters, West Conshohocken, Pa., Technical Contact:, Stephen N. Luko, Hamilton Sunstrand, Shared Engineering Services, Windsor Locks, Conn., Phone: 860-654-3447; stephen.luko@hs.utc.com, ASTM Staff Contact:, Christine Sierk, Phone: 610-832-9728; csierk@astm.org Release #8978
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Measurement systems analysis is an important topic in statistics and quality for engineering, manufacturing, laboratory practice and business process applications. A new ASTM International standard, ASTM E2782 , Guide for Measurement Systems Analysis (MSA), covers many core issues of MSA. ASTM E2782 was developed by Subcommittee E11.20 on Test Method Evaluation and Quality Control, under the…
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ASTM grain size is a property written into many specifications for metals, with finer grain sizes generally indicating better mechanical properties, such as formability. While measuring certain materials for such properties can be difficult, electron backscatter diffraction can provide precise determinations as well as give information on grain size distribution and statistics. A new ASTM…
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A recent revision to ASTM International standard E384 , Test Method for Knoop and Vickers Hardness of Materials, expands the range of its coverage. The standard is under the jurisdiction of Subcommittee E04.05 on Microindentation Hardness Testing, part of ASTM International Committee E04 on Metallography. The revision incorporates ASTM E92 , Test Method for Vickers Hardness of Metallic Materials…
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With the proposed new standard, WK11023 , Practice for Life and Reliability Testing Based on the Exponential Distribution, ASTM International Committee E11 on Quality and Statistics is continuing its program of preserving U.S. government military standards on acceptance sampling. WK11023 is an adaptation of the DoD quality control and reliability handbook document H-108, Sampling Procedures and…
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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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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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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…