管材纵向回缩率不确定度分析及在比对试验中的应用

The uncertainty analysis in the ratio of pipe vertical retraction, and it′s application in the comparison test

本文结合实际检测工作,对管材纵向回缩率的测量结果进行了测量不确定度分析、计算,并利用测量不确定度计算结果对实验室间比对试验结果进行判定。

The article analyses the uncertainty of the measurement result in pipe vertical retraction,and determine the result of comparison test in different laboratories integrating the uncertainty analysis with the practical test.