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WesTgard® Quality Corporation, 7614 Gray Fox Trail, Madison, WI 53717
Call 608-833-4718 or e-mail westgard@westgard.com
Specifications for imprecision and inaccuracy can be established by defining the quality required for your test and establishing the QC rules and number of control measurements that you want to use in your laboratory. Enter the information on the quality required and the number of control materials to me analyzed to prepare an OPSpecs that shows the imprecision and inaccuracy that are allowable for different QC procedures.