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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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Measuring the reflectance of vitrinite dispersed in sedimentary rocks is one of the most commonly used tools for determining thermal maturity in hydrocarbon exploration, basin modeling and other geological applications. Despite this, there currently is not a consensus standard for making these measurements. ASTM International Committee D05 on Coal and Coke is developing a proposed standard to…
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Subcommittee D05.21 on Methods of Analysis invites all interested parties to participate in the development of a proposed new standard, WK22936 , Test Method for Determination of Sulfur Forms in Coal by ICP-AES. The subcommittee is part of ASTM International Committee D05 on Coal and Coke. According to Colin Campbell, SaskPower, and D05 member, WK22936 is to be based on D2492 , Test Method for…
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While drug products must be tested for chemical and physical stability in their market packages, the testing process can be long and expensive. A proposed new ASTM International standard under the jurisdiction of Committee D10 on Packaging will provide a quick and accurate method to minimize the necessary package testing. The proposed standard, WK21601 , Test Method for Measuring Water Vapor…
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A new mechanical sampling standard recently approved by ASTM International Committee D05 on Coal and Coke incorporates into one document four other ASTM standards dealing with mechanical samples. The new standard, D7430 , Practice for Mechanical Sampling of Coal, is under the jurisdiction of Subcommittee D05.23 on Sampling. Paul Reagan, president, Sampling Associates International, and a D05…
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While the use of radio frequency identification transponders has become common for inventory tracking purposes, RFID system performance can be affected by product and packaging materials. A new ASTM standard can be used to provide a framework for testing RFID system performance that can be applied to, and compared across, all RFID manufacturer systems in any industrial application that involves a…
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Laboratories that test coal and coke for moisture, volatile matter and ash will benefit from a proposed new standard being developed by ASTM International Committee D05 on Coal and Coke. The new standard, WK19081 , Test Method for Proximate Analysis of Coal and Coke by Macro Thermogravimetric Analysis, is being developed by a task group under the jurisdiction of Subcommittee D05.21 on Methods of…
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The need to create a more realistic simulation for the small parcel shipping and handling environment was the impetus for the development of a new ASTM standard, D7386 , Practice for Performance Testing of Packages for Single Parcel Delivery Systems. Subcommittee D10.21 on Shipping Containers and Systems—Application of Performance Test Methods, under the jurisdiction of ASTM International…
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ASTM International Committee D10 on Packaging will present a Distribution Packaging Workshop on April 7, 2008, from 10 a.m. to noon. The workshop, which is being organized by the committee’s university liaison subcommittee, will occur during the Committee D10 meeting at the ASTM committee week in Anaheim, Calif. Workshop topics will include the following: • Single-Parcel Shipping Environment—…
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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…