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A proposed new ASTM International standard will help consumer goods developers and manufacturers in the evaluation of their products to ensure product quality, consumer satisfaction and marketing success. The proposed standard, ASTM WK29225 , Guide for Design and Execution of Sensory-Instrumental Correlation Studies, is being developed by a task group of Subcommittee E18.03 on Sensory Theory and…
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Rapid hardening hydraulic cements are used in a variety of applications in which reduced cementitious contents are desired or early service is needed. Included among these applications are paving, construction, stucco, mortar and block. A newly approved ASTM International standard covering these cements, ASTM C1600/C1600M , Specification for Rapid Hardening Hydraulic Cement, has been developed by…, Type URH, —ultra rapid hardening, for use where ultra high early strength is desired;, Type VRH, —very rapid hardening, for use where very high early strength is desired;, Type MRH, —medium rapid hardening, for use where mid-range rapid hardening, high early strength is desired; and, Type GRH, —general rapid hardening, for use when the higher strength properties of Type VRH or a Type MRH cement is not required. “ASTM C1600 lists minimum requirements for compressive strength, setting time, shrinkage and soundness (autoclave expansion),” says Hicks. “Optional specifications for sulfate expansion, alkali silicate reactions with aggregates, heat of hydration and expansion in water are also…
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ASTM International Committee E29 on Particle and Spray Characterization has recently approved an extensive revision of ASTM standard E11 , Specification for Wire Cloth and Sieves for Testing Purposes. The revision will lead to better control of the quality of sieve cloths and test sieves. ASTM E11 is under the jurisdiction of Subcommittee E29.01 on Sieves, Sieving Methods and Screening Media.…
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Many products can come in contact with drinking water during various stages of its treatment and delivery. This contact can have taste and odor implications that will be addressed in a proposed new ASTM International standard, WK21784 , Practice for Assessing Flavor of Drinking Water. Subcommittee E18.06 on Food and Beverage Evaluation, a part of ASTM International Committee E18 on Sensory…
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ASTM International Committee E18 on Sensory Evaluation of Materials and Products is working on a proposed new standard that will provide sensory professionals with guidelines for developing, selecting and using scales in the context of sensory experiments and consumer research. WK19660 , Guide for Developing and Using Appropriate Scales, is being developed by Subcommittee E18.04 on Fundamentals…
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All interested parties are invited to participate in a new task group on instrument test results for sensory evaluation of consumer products, including food and cosmetics. The new task group will be part of ASTM International Committee E18 on Sensory Evaluation and will meet during the E18 meetings at April committee week in Anaheim, Calif. “Our goal at this meeting will be to recruit members,…
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A recently approved revision to ASTM International standard C 150 , Specification for Portland Cement, includes three significant technical changes to the document. The changes are part of a joint effort between ASTM and the American Association of State and Highway and Transportation Officials to harmonize C 150 with AASHTO’s standard, M 85, Specification for Portland Cement. C 150 is under the…
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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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Sieve manufacturers produce testing sieves using various sizes of wire cloth, per ASTM International standard E 11, Specification for Wire Cloth and Sieves for Testing Purposes. They also use ASTM standards E 161, Specification for Precision Electroformed Sieves, and E 323, Specification for Perforated-Plate Sieves for Testing Purposes when producing sieves from perforated plate. These…
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After a 35-year-absence, the natural cement industry is being revived and, along with it, a long-withdrawn ASTM International standard. Until it closed in 1970, the Century Cement Company in Rosendale, N.Y. was the last company to manufacture natural cement. Up to that point, Rosendale had been the center of the industry, the source of more than half of all natural cement produced in the U.S.…