arsenic test method Applications

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Saran Bag application

by Analytical Specialties, Inc.     based in Elburn, ILLINOIS (USA)

Title : Preliminary Sampling Methodology and Analytical Procedures for Ambient Sulfur Hexafluoride, Corporate Author : ARMY MEDICAL ENVIRONMENTAL ENGINEERING RESEARCH UNIT EDGEWOOD ARSENAL MD Personal Author(s) : Luckan,Susan K. ; Cooper,William J. Report Date : JAN 1973 Pagination or Media Count : 23 Abstract : A preliminary evaluation of techniques of sampling and gas chromatographic analysis for low levels of sulfur hexafluoride was conducted to determine the most feasible method for available equipment. Using a Tracor MT-150 gas chromatograph equipped with Nickel 63 electron capture detector and polarized dc voltable, it was possible to detect sulfur hexafluoride at a concentration of 0.06 ppb with a 5A molecular sieve column and nitrogen carrier gas, without preconcentration of the sample. Also, a comparison of glass and Saran sampling materials proved that no detectable loss of the tracer gas resulted with the Saran bags (between 6 ppm and 0.06 ppb SF6

Analysing preservatives in recycled and treated wood for wood industry

by Oxford Instruments plc     based in Abingdon, UNITED KINGDOM

Treated wood for disposal or recycling is tested for hazardous components to establish the relevant methods of wood disposal that can be applied. There is a range of preservative solutions used for pressure treated wood including Copper Azole, Pentachlorphenol (Penta) and Chromated Copper Arsenate (CCA), all of which can be identified by analysis. While untreated wood degrades within three to five years, the wood that is pressure treated with these kind of preservatives can last up to sixty years!

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