Determination Rules and Risk Level of Conformity of Sample Test Results

At present, the product standards or relevant specifications only give the upper and/or lower limit values for technical indicators, and do not clearly determine how to determine the test results, especially do not consider the impact of test uncertainty on the determination of test results. The judgment rules of conformity of test results and the corresponding risk level were introduced briefly, the simple acceptance/rejection judgment rules and the judgment rules after considering the uncertainty were discussed, the different rules to evaluate the conformity of test results were taken according to different situations, and the influence of the uncertainty on the conformity evaluation was considered, so that the conformity evaluation results were more scientific and accurate.