by Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory, Monitoring Systems Research and Development Division, for sale by the National Technical Information Service in Las Vegas, Nev, Springfield, Va .
Written in English
|Statement||by L. H. Ziegler.|
|Series||Environmental monitoring series ; EPA-600/4-76-054|
|Contributions||United States. Environmental Protection Agency. Office of Research and Development.|
|The Physical Object|
|Pagination||ii, 9 p. :|
Interlaboratory intercomparison of polonium measurements / By L. H. Ziegler and United States. Environmental Protection Agency. Office of Research and Development. Abstract. Includes graphy: p. of access: Internet. Purchase Interlaboratory Studies and Certified Reference Materials for Environmental Analysis, Volume 22 - 1st Edition. Print Book & E-Book. ISBN , Interlaboratory comparisons are typically used for one of three main purposes, to assess the random variation in measurement results across a population of laboratories, to determine the systematic differences in results among a fixed set of laboratories, or to determine the value of a physical property of an artifact or a population of : William F. Guthrie. Interlaboratory comparisons are a basic part of the regular quality controls of laboratories to warranty the adequate performance of test and measurements. The exercise presented in this article is the comparison of indoor radon gas measurements under field conditions performed with passive detectors and active monitors carried out in the Laboratory of Natural Radiation (LNR).
Proficiency Testing and Interlaboratory Comparisons in Laboratory for Dimensional Measurement Article (PDF Available) November with 6, Reads How we measure 'reads'. Interlaboratory comparison is the organization, performance and evaluation of tests on Intercomparison of measurements results are one of the main ways of proving realistic estimates of measurement uncertainty. The basic principle of the laboratory work must be – Compare our measuring results and find out where we are in the world of. An interlaboratory comparison was organized as a first step to evaluate the measurement of CYN in lyophilized cyanobacterial cells. Six laboratories from Europe, Israel, and Australia participated in the trial. a large intercomparison exercise on the determination of purified microcystin-LR. Description of an interlaboratory comparison. A proficiency test enables to evaluate the reliability of the services of your laboratory. A inter laboratory comparison (or proficiency test or PTP or round robin test) consists in testing the same samples by different laboratories and in comparing the results. Three different objectives can be.
Intercomparison measurements are also a viable means of underpinning measurement quality with this unstable analyte. It is difficult to organize DO intercomparisons involving sending samples to the participating laboratories as is usually done in the case of interlaboratory comparisons in other chemical measurements. Although additional measurements may be needed to ensure the accuracy of the isotopic compositions of S-MIF-1 and S-MIF-2, they can serve as working standards for routine Δ 33 S analysis to improve data consistency, and have the potential to serve as secondary sulfur isotope reference materials to address issues such as scale contraction. Polonium in urine (Bq.L-1) intercomparison programme) under the auspices of Procorad. The interlaboratory comparisons campaign requires a wide variety of skills that Procorad does not possess, requiring it to look outside the organisation. Preparation, inspection (homogeneity and. In the U.S. Environmental Protection Agency distributed calibrated solutions of polonium to laboratories interested in participating in an intercomparison study of polonium analysis.