卫生纸抗张强度测量不确定度的评定

Measuring Uncertainty Evaluation of Bathroom Tissue Tensile Strength

按照测量不确定度评定的基本方法和程序对卫生纸抗张强度测量结果的不确定度进行了评定,不确定度来源主要是抗张力F-的重复性测量,其次为电子万能试验机校准和试样宽度;卫生纸抗张强度测量结果的扩展不确定度是1.6N/m,包含因子为2;在卫生纸抗张强度测量过程中,应均匀取样,并提高操作者的熟练程度。

The measuring uncertainty of bathroom tissue tensile strength was evaluated according to the basis method and procedure of measuring uncertainty evaluation. Source of uncertainty mainly came from repeated test of tensile strength , then acuracy of electronic universal machine and width of test piece. Expanded uncertainty of bathroom tissue tensile strength was 1.6N/m when the coverage factor was 2. The test piece of tensile strength should be sampled evenly in the process of bathroom tissue ten- sile strength testing, and the operator should improve his skill.