Beryllium: Sampling and Analysis (ASTM special technical by Kevin Ashley, editor

By Kevin Ashley, editor

9 peer-reviewed papers give you the most recent examine on beryllium pattern assortment, education, and size. STP 1473 additionally identifies new components of criteria improvement referring to beryllium sampling and analytical techniques. subject matters conceal: Beryllium Disease--Exposure tracking and Standardization matters: an evaluate of beryllium ailment and efforts to lessen employee exposures via enhanced tracking tools and the advance of ordinary methodologies. Papers talk about the commercial makes use of of beryllium, the historical past of beryllium ailment, occupational publicity tracking, and standardization of sampling and analytical equipment. Beryllium publicity size and Reference Materials--National and foreign views: international efforts and development in beryllium occupational tracking, in addition to the advance and characterization of beryllium reference fabrics. functions of sampling and analytical how you can business hygiene chemistry and perform are highlighted, and wishes for reference fabrics containing beryllium oxide are pointed out. On-Site tracking for Beryllium--Sampling and Analytical elements: new transportable analytical equipment for selecting hint beryllium in samples from air and surfaces, time qualitative and semi-quantitative tools, and close to real-time quantitative strategies for ultra-trace Be research.

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29 30 BERYLLIUM: SAMPLING AND ANALYSIS Standard Reference Material® (SRM)—A certified reference material (CRM) issued by the National Institute of Standards and Technology (NIST). An SRM is a well characterized material produced in quantity to improve measurement science. It is certified for specific chemical or physical properties, and is issued by NIST with a certificate that reports the results of the characterization and indicates the intended use of the material. Traceability—The property of the result of a measurement or the value of a standard whereby it can be related to stated references, usually national or international standards, through an unbroken chain of comparisons all having stated uncertainties [2].

In its normal decision making, NIST uses a cost-recovery formula by evenly dividing the costs of production over the number of SRM units that are expected to sell in five years. If the economics are favorable, the decision to proceed would simply require the expertise and input to complete all remaining steps of the reference material lifecycle process. The second analysis disregards simple economics and focuses on what materials are needed to answer critical health and safety questions. Costs of producing and distributing the reference materials would most likely have to be underwritten by sponsoring agencies.

Efforts are presently underway by the National Institute of Standards and Technology (NIST) to develop representative SRMs containing beryllium oxide, including the high-fired variety, which is particularly refractory in nature. Additionally, there remains a need to certify beryllium concentrations in representative environmental matrices. Summary Various standardized sampling, sample preparation, and analytical methods for beryllium in workplace samples have been published by governmental agencies and consensus standards organizations.

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