Download or read book Interlaboratory Study of the Reproducibility of the Single pass Flow through Test Method written by W. L. Ebert and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An international interlaboratory study (ILS) was conducted to evaluate the precision with which single-pass flow-through (SPFT) tests can be conducted by following a method to be standardized by the American Society for Testing and Materials - International. Tests for the ILS were conducted with the low-activity reference material (LRM) glass developed previously for use as a glass test standard. Tests were conducted at 70 {+-} 2 C using a LiCl/LiOH solution as the leachant to impose an initial pH of about 10 (at 70 C). Participants were provided with LRM glass that had been crushed and sieved to isolate the -100 +200 mesh size fraction, and then washed to remove fines. Participants were asked to conduct a series of tests using different solution flow rate-to-sample mass ratios to generate a range of steady-state Si concentrations. The glass dissolution rate under each test condition was calculated using the steady-state Si concentration and solution flow rate that were measured in the test. The glass surface area was estimated from the mass of glass used in the test and the Si content of LRM glass was known. A linear relationship between the rate and the steady-state Si concentration (at Si concentrations less than 10 mg/L) was used to estimate the forward dissolution rate, which is the rate in the absence of dissolved Si. Participants were asked to sample the effluent solution at least five times after reaction times of between 3 and 14 days to measure the Si concentration and flow rate, and to verify that steady-state was achieved. Results were provided by seven participants and the data sets provided by five participants were sufficient to determine the forward rates independently.
Download or read book Journal of Research of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1979 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precision of Test Methods written by International Organization for Standardization and published by . This book was released on 1986 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Repeatability and Reproducibility for Pass Fail Data written by J. Mandel and published by . This book was released on 1997 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: A distribution-free method is presented for the evaluation of the reproducibility standard deviation in interlaboratory studies. The method is especially useful in the analysis of pass/fail interlaboratory data.
Download or read book Manual on hydrocarbon analysis written by and published by ASTM International. This book was released on 1963 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to ASTM Test Methods for the Analysis of Petroleum Products and Lubricants written by R. A. Nadkarni and published by Astm International. This book was released on 2000 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes the essential elements of all analytical tests used to characterize petroleum products. The 350 plus entries are alphabetically arranged by chemical and physical properties, such as apparent viscosity, density, metal analysis, sulfur determination, vapor pressure, and water. Each entry co
Download or read book Annual Book of ASTM Standards written by American Society for Testing and Materials and published by . This book was released on 2003 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: A compilation of all ASTM standards issued each year.
Download or read book Annual Book of ASTM Standards written by ASTM International and published by . This book was released on 2003 with total page 1484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Publications Newsletter written by and published by . This book was released on 1979 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A newsletter for librarians, documentalists, and science information specialists.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975-12 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms written by and published by DIANE Publishing. This book was released on 2002 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ASTM Standards in Building Codes written by American Society for Testing and Materials and published by . This book was released on 1986 with total page 2008 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Short term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms written by and published by . This book was released on 1994 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Strengthening Forensic Science in the United States written by National Research Council and published by National Academies Press. This book was released on 2009-07-29 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.
Download or read book Reagent Chemicals written by American Chemical Society. Committee on Analytical Reagents and published by . This book was released on 1968 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Building Industry Technology written by and published by . This book was released on 1979 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
