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Air permits from regulatory agencies, such as the U.S. Environmental Protection Agency (USEPA), often require the measurement of a plume's opacity as the plume is emitted from a stationary point source (for example, smokestacks) in the outdoor ambient environment. While such opacity is often visually measured by human observers as “certified smoke readers,” an opacity measurement method using…
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The measurement of acid mist is becoming increasingly important due to recent actions taken by the U.S. Environmental Protection Agency on fine particles (2.5 micrometers in diameter and smaller) that are unhealthy to breathe. ASTM International Committee D22 on Air Quality is currently working on a proposed standard for measuring acid mists that come from combustion sources, WK22846 , Test…
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The use of rolling devices can provide a means to evaluate the adhesion of weather seals, for quality control in new installations, general evaluation of existing installations, and the investigation of water and air leakage through building enclosures. In order to better facilitate the use of rolling devices, ASTM International Committee C24 on Building Seals and Sealants is developing a…
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A new ASTM International standard provides guidance for using data generated by ASTM standards in testing for asbestos in surface dust. ASTM D 7390 , Guide for Evaluating Asbestos in Dust on Surfaces by Comparison Between Two Environments, was approved by ASTM International Committee D22 on Air Quality, part of Subcommittee D22.07 on Sampling and Analysis of Asbestos. According to James Millette…
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A new ASTM International standard will provide a method to consistently address indoor air quality complaints in residential buildings and to guide IAQ investigations in an efficient manner. The standard, D 7297 , Practice for Evaluating Residential Indoor Air Quality Concerns, is under the jurisdiction of Subcommittee D22.05 on Indoor Air, part of ASTM International Committee D22 on Air Quality…
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ASTM International Committee C24 on Building Seals and Sealants invites interested parties to participate in the development of a proposed new standard that will use photographs to illustrate various types of sealant failures. WK11731 , Guide for Diagnosing Sealant Failure by Comparison to Reference Photographs, is under the jurisdiction of Subcommittee C24.10 on Specifications, Guides and…
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Laboratories that measure fibers in workplace samples will be the most likely users of two new ASTM International standards: D 7200 , Practice for Sampling and Counting Airborne Fibers, Including Asbestos Fibers, in Mines and Quarries, by Phase Contrast Microscopy and Transmission Electron Microscope; and D 7201 , Practice for Sampling and Counting Airborne Fibers, Including Asbestos Fibers, in…
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A process hazard analysis prior to the startup of a chemical processing facility is essential to prevent catastrophic incidents due to thermal runaway reactions. A proposed new ASTM standard, WK9584, Guide for Assessing Potential Hazards of Synthesis Reactions Using Reaction Calorimetry, will help to standardize how the results from reaction calorimetry experiments are used in a process hazard…
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ASTM International Committee C24 on Building Seals and Sealants is currently working to fill a need for a weatherproofing sealant field test standard. The result, proposed standard WK7800, Guide for a Non-Destructive, Continuous, Field Test of Installed Weatherproofing Sealant, features a field test that has been used by sealant professionals for years, but has not, up to this point, been…
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ASTM International Committee D22 on Air Quality formed Subcommittee D22.08 on Sampling and Analysis of Mold at its fall meeting in Washington, D.C., Oct. 4, 2004. The subcommittee was formed to meet the interest of attendees of the ASTM Boulder Conference on "Mold in the Indoor Environment: Assessment, Health and Physical Effects, and Remediation," held at the University of Colorado in Boulder,…