The status and quality of radiation measurements for air, Volume 1

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Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory, 1977 - Business & Economics - 32 pages
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Page ii - US Environmental Protection Agency, and approved for publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for use.
Page 1 - ... the cross-check samples and return their data to the Quality Assurance Branch for statistical evaluation. Comparisons are made between laboratories and within an individual laboratory for accuracy and precision. A computer report and an updated performance chart are returned to each participant. This enables each laboratory to document the precision and accuracy of its radiation data, to identify instrumental and procedural problems, and to compare performance with other laboratories.
Page 1 - ... guides, and for enforcement activities. It is therefore imperative that the precision and accuracy of the data be assured in order that policy decisions concerning environmental quality be based on valid and comparable data. The quality assurance program of the US Environmental Protection Agency (EPA) is designed to encourage the development and implementation of quality control procedures at all levels of sample collection, analysis, data handling, and reporting. Quality control responsibilities,...
Page 5 - The control charts are updated each time a laboratory participates in a crosscheck study, thus giving each laboratory a continuous record of its performance. A...

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