Download or read book Chemical Reference Materials written by National Research Council and published by National Academies Press. This book was released on 2002-10-02 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accuracy of chemical oceanographic measurements depends on calibration against reference materials to ensure comparability over time and among laboratories. Several key parameters lack reference materials for measurements in seawater, particles in the water column, and sediments. Without reference materials it is difficult to produce the reliable data sets or long-term baseline studies that are essential to verify global change and oceanic stability. Chemical Reference Materials : Setting the Standards for Ocean Science identifies the most urgently required chemical reference materials based on key themes for oceanographic research and provides suggestions as to how they can be developed within realistic cost constraints. Chemical analyses of seawater are uniquely difficult given the poorly known speciation and the low concentration of many of the analytes of interest. Analyses of suspended and sedimentary marine particulate materials present their own distinct challenges, primarily due to potential interference by predominant mineral phases of different types. Of all the analytical methods applied to marine waters and particles, at present only a small fraction can be systematically evaluated via comparison to reference materials that represent the appropriate natural concentrations and matrices. Specifically, the committee was charged with the following tasks: - compile from available sources a list of important oceanographic research questions that may benefit from chemical reference standards; - create a comprehensive list of reference materials currently available for oceanographic studies; - identify and prioritize the reference materials needed to study the identified research questions; - determine for each priority analyte whether reference materials and/or analytic methods should be standardized; and - identify the most appropriate approaches for the development and future production of reference materials for ocean sciences.
Download or read book Reference Materials in Analytical Chemistry written by A. Zschunke and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Under the guidance of the German Federal Institute for Materials Research (BAM), the standards for fabrication and application of reference materials are presented here in comprehensive form. The areas covered are analytical chemistry, materials science, environmental analysis, clinical and forensic toxicological analysis, and gas and food analysis. A standard reference for every analytical laboratory.
Download or read book Standard Reference Materials written by John K. Taylor and published by DIANE Publishing. This book was released on 1997-07 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook was prepared with the objective of improving the understanding of the basis for the use of Standard Reference Materials (SRMs). While written from the viewpoint of a chemist, the basic concepts described are believed to be applicable to most areas of metrology. The handbook is arranged by section in a logical progression, starting with the basic concepts of precision & accuracy, followed by discussions of the calibration & quality assurance of the measurement process, the use of SRMs to evaluate various kinds of measurements, & the reporting of data with evaluated limits of uncertainty. Charts & tables.
Download or read book Standard Reference Materials and Meaningful Measurements written by Richard W. Seward and published by . This book was released on 1975 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standards Reference Materials and Methods written by and published by College of Amer Pathologists. This book was released on 1983 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Reference Materials written by and published by . This book was released on 1979 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Reference Materials written by Tetse Chang and published by . This book was released on 1978 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book STANDARD REFERENCE MATERIALS METHODS FOR THE CHEMICAL ANALYSIS OF WHITE CAST IRON STANDARDS written by United States. National Bureau of Standards and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Standard Reference Materials Catalog written by National Measurement Laboratory (U.S.). Office of Standard Reference Materials and published by . This book was released on 1979 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalog of NBS Standard Reference Materials written by and published by . This book was released on 1979 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Standard Reference Materials in Measurement Systems written by J. Paul Cali and published by . This book was released on 1975 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of NIST Standard Reference Materials for Decisions on Performance of Analytical Chemical Methods and Laboratories written by and published by . This book was released on 1992 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Reference Materials SRMs for the Calibration and Validation of Analytical Methods for PCBs as Aroclor Mixtures written by and published by DIANE Publishing. This book was released on with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Reference Materials written by William F. Koch and published by Forgotten Books. This book was released on 2016-06-24 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Standard Reference Materials: Methods and Procedures Used at the National Bureau of Standards to Prepare, Analyze and Certify Srm 2694, Simulated Rainwater, and Recommendations for Use The pressing need of the scientific community for a common reference material for rainwater and the desire by us to field test such a material led to the production and distribution of a Research Material, RM 8409, Simulated Rainwater. Rms are distinguished from srms according to the definitions of the Office of Standard Reference Materials, National Bureau of Standards, In brief, rms are high quality materials whose composition have been established by a single technique for each component. The composition of srms is certified after much more extensive testing involving at least two independent techniques for each component, or analysis by a definitive met hod. Often an RM uncovers unforeseen problems, as was the situation in this case. This problem involved the long-term stability of the ammonium ion. The extent of the instability and its ramifications will be addressed below. 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.
Download or read book NBS Standard Reference Materials written by United States. National Bureau of Standards and published by . This book was released on 1967 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Accreditation and Quality Assurance in Analytical Chemistry written by Helmut Günzler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quality assurance and accreditation in analytical chemistry laboratories is an important issue on the national and international scale. The book presents currently used methods to assure the quality of analytical results and it describes accreditation procedures for the mutual recognition of these results. The book describes in detail the accreditation systems in 13 European countries and the present situation in the United States of America. The editor also places high value on accreditation and certification practice and on the relevant legislation in Europe. The appendix lists invaluable information on important European accreditation organizations.
Download or read book Standard Reference Materials written by Robert C. Paule and published by . This book was released on 1970 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
