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According to the case of "2016 year highway engineering test of asphalt penetration and softening point test", we use the mathematical statistical analysis of the ability standard variance and sample uniformity; find the correlation effects of test precision. By comparing the similar data released recently by CNAS, we evaluate the general level in the transportation industry. It validates the rationality of the repeatability and reproducibility of penetration and softening point test, provides reliable validation data for the revision of industry standards. Keywords—Ability Standard Variance, Uniformity of the Sample, Precision Degree of the Comparison Test

Analysis of the Influence of the Ability Standard Variance and the Uniformity of the Sample on the Precision of the Comparison Test