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Comparison Of Quantitative Techniques For Analysis Of Bulk Asbestos Proficiency Testing Materials
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Book Synopsis Comparison of Quantitative Techniques for Analysis of Bulk Asbestos Proficiency Testing Materials by : Robert L. Perkins
Download or read book Comparison of Quantitative Techniques for Analysis of Bulk Asbestos Proficiency Testing Materials written by Robert L. Perkins and published by . This book was released on 1999 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The methods used by NIST for quantitative analysis of NVLAP bulk asbestos PTMs are described. Quantitative XRD using the method of standard additions is the most generally applicable tool used. PTMs are also analyzed gravimetrically using acid dissolution and ashing to remove the matrix quantitatively. Gravimetry is used for many samples, even when the matrix cannot be completely removed. Point counting is performed on all the PTMs, but the results are used primarily to adjust acceptance ranges and not to provide reference values. The general application of these analytical methods to the analysis of the PTMs is described, and the results from multiple techniques are compared for selected samples. The reliability of each method is described, along with precautions that must be exercised to obtain accurate results. Results from Research Triangle Institute using the same general methods on the same PTMs are compared with results from NIST.
Book Synopsis Advances in Environmental Measurement Methods for Asbestos by : Michael E. Beard
Download or read book Advances in Environmental Measurement Methods for Asbestos written by Michael E. Beard and published by ASTM International. This book was released on 1999 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive new volume focuses on the latest research advances in measurement methods, monitoring strategies, data interpretation, and quality assurance for asbestos in bulk building materials, as well as ambient, indoor and workplace air, water, and settled dust. [Ed]
Book Synopsis Bulk Asbestos Laboratory Programs in the United States--Seventeen Years in Retrospect by : J. Todd Ennis
Download or read book Bulk Asbestos Laboratory Programs in the United States--Seventeen Years in Retrospect written by J. Todd Ennis and published by . This book was released on 1999 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quality assurance and proficiency testing programs have been available for 17 years in the United States for laboratories analyzing for asbestos in bulk building materials by polarized light microscopy. After peaking in the late 1980's, total enrollment has dropped but stabilized in the last four years to 700-750 laboratories, and participation rates currently exceed 95%. Almost 122 000 test samples have been sent worldwide by Research Triangle Institute to laboratories in four major programs. A review of nearly 113 000 analysis results reveal that a small number of bulk building materials cause the majority of difficulties in each of the programs, although error frequencies vary from program to program. Improvement has occurred in overall laboratory performance since the first programs began in the early 1980's, with a significant decline in qualitative errors and a much less dramatic decrease in errors associated with semiquantitative estimation of the amount of asbestos present.
Book Synopsis Analysis of Asbestos in Bulk Materials--1980 to 1997 by : Robert L. Perkins
Download or read book Analysis of Asbestos in Bulk Materials--1980 to 1997 written by Robert L. Perkins and published by . This book was released on 1999 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Federally sponsored asbestos proficiency testing programs have operated continuously in the United States since 1980. The U. S. Environmental Protection Agency published a test method for the analysis of asbestos in bulk materials in 1982, commonly referred to as the "Interim Method." Major revisions were made to the method and the revised version was published in 1993. Polarized light microscopy, supplemented by x-ray diffraction, is the primary analytical technique presented in the 1982 and 1993 test methods. The 1993 version of the test method also recommends additional analytical techniques such as gravimetric sample reduction, transmission electron microscopy, and the use of bulk calibration standards. Research Triangle Institute's more than 17 years' experience evaluating the test methods and characterizing thousands of proficiency testing samples for testing programs indicates that the available analytical techniques can provide very accurate results for qualitative analysis of asbestos-containing materials and reasonably accurate results for quantitation of asbestos concentrations. The quality of the results being produced by the asbestos laboratory community appears to be most influenced by the skill level of the analysts and the degree of employment of the available analytical techniques.
Author :University of California, Berkeley. Office of Environmental Health and Safety Publisher : ISBN 13 : Total Pages :606 pages Book Rating :4.:/5 (2 download)
Book Synopsis Bulk material sample analysis report by : University of California, Berkeley. Office of Environmental Health and Safety
Download or read book Bulk material sample analysis report written by University of California, Berkeley. Office of Environmental Health and Safety and published by . This book was released on 1990 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Voluntary Laboratory Accreditation Program by : Eric Steel
Download or read book National Voluntary Laboratory Accreditation Program written by Eric Steel and published by . This book was released on 1994 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guide for Quality Control on the Qualitative and Quantitative Analysis of Bulk Asbestos Samples by : Jennifer R. Verkouteren
Download or read book Guide for Quality Control on the Qualitative and Quantitative Analysis of Bulk Asbestos Samples written by Jennifer R. Verkouteren and published by Forgotten Books. This book was released on 2018-08-06 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Guide for Quality Control on the Qualitative and Quantitative Analysis of Bulk Asbestos Samples: Version 1 This guide provides a set of approaches for dealing with quality control (qc) data in the bulk asbestos analysis laboratory. This guide was developed in response to numerous requests for detailed information on quality control from the laboratories involved in the National Voluntary Laboratory Accreditation Program (nvlap) for bulk asbestos. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis Publications of the National Institute of Standards and Technology ... Catalog by : National Institute of Standards and Technology (U.S.)
Download or read book Publications of the National Institute of Standards and Technology ... Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1994 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guide for Quality Control on the Qualitative and Quantitative Analysis of Bulk Asbestos Samples by : Jennifer R. Verkouteren
Download or read book Guide for Quality Control on the Qualitative and Quantitative Analysis of Bulk Asbestos Samples written by Jennifer R. Verkouteren and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This guide provides a set of approaches for dealing with quality control (QC) data in the bulk asbestos analysis industry ... The guide outlines procedures for characterizing within analyst and within laboratory accuracy for the analysis of bulk asbestos samples. Methods are gvien for generating control charts using statistics calculated from control data. Real laboratory QC data provided by an anonymous NVLAP [National Voluntary Laboratory Accreditation Program] laboratory is presented and analyzed."--Page 1
Download or read book The Microscope written by and published by . This book was released on 1995 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 3 adds section "The Entomological monthly."
Book Synopsis Shortcomings in Airborne Asbestos Analysis Filtered from New York State's Proficiency-Testing Data by : Laurie J. Carhart
Download or read book Shortcomings in Airborne Asbestos Analysis Filtered from New York State's Proficiency-Testing Data written by Laurie J. Carhart and published by . This book was released on 1999 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1992, the Environmental Laboratory Approval Program of the New York State Department of Health has conducted semi-annual proficiency testing (PT) of laboratories analyzing airborne asbestos by transmission electron microscopy. While these PT rounds have included magnification measurements, diffraction measurements, zone-axis calculations, and identification of unknown mineral fibers, most samples have been dispersions of asbestos and other mineral fibers on MCE filters. Participating laboratories in each PT round were required to fill out a questionnaire detailing preparation and analytical methods. When performance of laboratories was correlated with their reported preparation and analytical methods, some significant trends were uncovered. Quality of grids was best for laboratories that 1) collapsed filters using a DMF solution, 2) used gravimetric reduction of collapsed filters to calibrate etching time, 3) etched filters for three to six minutes, and 4) used a combination of Jaffe-wick and condensation washer to dissolve filters. Reported structure concentrations were highest for laboratories that 1) etched filters for longer than six minutes, 2) evaporated carbon in a tilt/rotation geometry, and 3) performed analysis at magnifications between 15,000 and 20,000.
Book Synopsis NIOSH, Manual of Analytical Methods by :
Download or read book NIOSH, Manual of Analytical Methods written by and published by . This book was released on 1994 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lead in Paint, Soil, and Dust by : Michael E. Beard
Download or read book Lead in Paint, Soil, and Dust written by Michael E. Beard and published by ASTM International. This book was released on 1995 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: From a July 1993 conference in Boulder, Colorado, 28 papers review the latest results in research on monitoring and controlling environmental exposures to lead in paint, soil, and dust. They provide a multidisciplinary overview of research programs, the status of analytical methods, and certificatio
Book Synopsis Standard Methods for the Examination of Water and Wastewater by : American Public Health Association
Download or read book Standard Methods for the Examination of Water and Wastewater written by American Public Health Association and published by . This book was released on 1981 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Asbestos by : Great Britain. Health and Safety Executive
Download or read book Asbestos written by Great Britain. Health and Safety Executive and published by . This book was released on 2005 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides advice and guidance for analysts involved licensed abestos removal and the sampling of asbestos - containing materials. This publication consolidates and updates technical guidance from a number of HSE sources, including previously published guidance notes (EH10, MDHS39, MDHS77).
Author :National Institute for Occupational Safety and Health. Division of Physical Sciences and Engineering Publisher : ISBN 13 : Total Pages :688 pages Book Rating :4.:/5 (319 download)
Book Synopsis NIOSH, Manual of Analytical Methods by : National Institute for Occupational Safety and Health. Division of Physical Sciences and Engineering
Download or read book NIOSH, Manual of Analytical Methods written by National Institute for Occupational Safety and Health. Division of Physical Sciences and Engineering and published by . This book was released on 1994 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Third Supplement to NIOSH Manual of Analytical Methods (NMAM), Fourth Edition by :
Download or read book Third Supplement to NIOSH Manual of Analytical Methods (NMAM), Fourth Edition written by and published by . This book was released on 2003 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
