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Traffic monitoring is a means of counting and classifying vehicles and measuring vehicle flow characteristics, such as vehicle speed, lane occupancy, turning movements and other items typically used to portray traffic movement. In order for traffic monitoring data to be assessed properly, information on how the data were collected, edited, summarized and reported must be provided. This obligation…
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The ongoing focus on sustainability in construction has contributed to greater interest in vegetative, or green, roof systems, in which traditional roofing material is replaced or supplemented with vegetation. A proposed new ASTM International standard will address an important aspect of designing this kind of roofing: determining the proper roofing and waterproofing membrane for a particular…
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Trona, or sodium sesquicarbonate, is a fine mineral powder that has proven to be effective at removing acid gases from air emissions. While trona can be a useful component of air pollution control systems, it can be difficult to handle, particularly when moisture is present. A proposed new ASTM standard will present a repeatable, precise and accurate test method for analyzing moisture levels in…, ASTM Committee E01 Next Meeting:, Nov. 14-17, November Committee Week, San Antonio, Texas, Technical Contact: J, ames D. Phillip, Solvay Chemicals Inc, Green River, Wyo., Phone: 307-872-6519; jim.phillip@solvay.com, ASTM Staff Contact:, Thomas O'Toole, Phone: 610-832-9739; totoole@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8608
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Since the appearance of the first California-type models around 1940, the profilograph has been a popular device used for quality control in the construction of pavements. Both roadway and airfield landing agencies have adopted roughness indexes computed from profilograph-derived measurements as a level of construction quality. Emerging high-speed inertial profilers can now quickly collect…
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A proposed new standard being developed by ASTM International Committee E17 on Vehicle-Pavement Systems will be the first to describe how truth-in-data should be applied to traffic monitoring data collection, summarization and reporting. WK25280 , Practice for Highway Traffic Monitoring Truth-in-Data, is under the jurisdiction of Subcommittee E17.52 on Traffic Monitoring. Current traffic…
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Test Method Covers Inductively Coupled Plasma Atomic Emission Spectrometry, A new ASTM International standard will help users properly prepare and analyze various nickel-based alloy samples by inductively coupled plasma emission spectrometry. The standard, ASTM E2594 , Test Method for Analysis of Nickel Alloys by Inductively Coupled Plasma Atomic Emission Spectrometry (Performance-Based Method), will assist users in preparing sample and calibration solutions and with…
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Being able to compile and interpret data on how traffic turns through an intersection could have an impact on future environmental and safety decisions regarding intersection geometry and traffic control. However, until recently no standard has existed to properly obtain and use this data. Now, ASTM International Committee E17 on Vehicle-Pavement Systems has approved E2667 , Practice for…
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Advancing gas analysis technology is leading to the development of a proposed new ASTM International standard, WK22331 , Test Method for Simultaneous Determination of Oxygen, Nitrogen and Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique. Analyzers are now available that can simultaneously test titanium and titanium alloys for oxygen, nitrogen and hydrogen. This…
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When fasteners penetrate roofing or waterproofing products as a planned part of installation, it is expected in some cases that the product will resist water migration at the point of penetration. A new ASTM International standard, D7349 , Test Method for Determining the Capability of Roofing and Waterproofing Materials to Seal Around Fasteners, addresses this situation. ASTM D7349 was developed…
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Modified bitumen products have been in use since the mid-1970s, and represent a substantial percentage of the commercial asphalt roofs installed throughout North America. A new ASTM International standard addresses the use of cold process adhesives in modified bitumen roofing systems. ASTM D7379 , Test Methods for Strength of Modified Bitumen Sheet Material Laps Using Cold Process Adhesive, was…