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Manufacturers of toluene, mixed xylenes and p-xylene are often required to determine the type and amount of impurities that remain from manufacture. A new ASTM International standard, D7504 , Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective Carbon Number, can now be used as an internal quality control tool where these products are produced…
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Analysts in laboratories that use regression-based methods to determine uncertainty in data and customers that request such measurements will be the primary users of a new standard recently approved by ASTM International Committee D19 on Water. ASTM D7366 , Practice for Estimation of Measurement Uncertainty for Data from Regression-Based Methods was developed by Subcommittee D19.02 on Quality…
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Chemical plants and contract and research laboratories will all be likely users of a new ASTM International standard, D 7183 , Test Method for Determination of Total Sulfur in Aromatic Hydrocarbons and Related Chemicals by Ultraviolet Fluorescence. D 7183 was developed by Subcommittee D16.04 on Instrumental Analysis, part of ASTM International Committee D16 on Aromatic Hydrocarbons and Related…
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Cyanide is routinely analyzed in water samples, often to demonstrate regulatory compliance; however, improper sample collection or pretreatment can result in significant positive or negative bias potentially resulting in unnecessary permit violations or undetected cyanide releases into the environment. Because of the importance and timeliness of these issues, ASTM Subcommittee D19.06 on Methods…
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A new ASTM International standard, F 2621 , Practice for Determining Response Characteristics and Design Integrity of Arc Related Finished Products in an Electric Arc Exposure, is the latest in a series of standards developed by Subcommittee F18.65 on Wearing Apparel to reduce the number of fatalities and injuries caused by electric arcs. ASTM Practice F 2621 provides procedural guidelines for…
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While nearly all of the instrumentation employed in the field to measure radioactive materials or radiation exposure rates used to be in the hands of state radiological control agencies or federal government national response organizations, this is no longer the case. Now, law enforcement personnel, first responders and other professionals have radiation detection instruments, though they may not…
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ASTM International Committee D19 on Water will host a workshop on turbidity during the June Committee Week in Norfolk, Va. Subcommittee D19.07 on Sediment, Geomorphology and Open Channel Flow will present the workshop from 1:00 to 5:00 p.m. on June 26, 2007. According to Mike Sadar, D19 member and principal application scientist, Hach Company, Committee D19 has invested several years in the…
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Dried blood represents the greatest challenge to cleaning surgical instruments. To meet this challenge, ASTM International Committee D12 on Soaps and Other Detergents has developed a new standard, D 7225 , Guide for Blood Cleaning Efficiency of Detergents and Washer-Disinfectors. The new guide is under the jurisdiction of Subcommittee D12.16 on Hard Surface Cleaning. Water-soluble components of…
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ASTM International standard D 1555, Test Method for Calculation of Volume and Weight of Industrial Aromatic Hydrocarbons and Cyclohexane, and its metric equivalent, D 1555M, have been revised by Committee D16 on Aromatic Hydrocarbons and Related Chemicals. The revision affects the basis for correcting volume from any temperature to 60 F (or 15 C using D 1555M), as well as calculating the weight…