显微投影法测定棉/苎麻混纺比的不确定度评定

doi:10.13475/j.fzxb.20171008705

摘要/Abstract

摘要：

为评定依据 FZ/T 30003—2009《麻棉混纺产品定量分析方法显微投影法》测定棉/苎麻混纺比的准确性，分析了测试中不确定度的来源，分别对棉/ 苎麻纤维平均直径、根数、切取长度、密度４个主要不确定度分量进行计算。同时，探讨了标准中约除的棉、麻纤维切取长度对混合纤维含量测试精度的影响，发现忽略长度差异会造成0.8%的检测误差。结果表明：参照 FZ/T 30003—2009 测定棉/ 苎麻混纺比时，由平均直径引入的不确定度最大，密度引入的最小；为提高检测效率，在标准允许的误差范围内，可忽略棉、麻纤维切取长度的差异。

关键词: 棉, 苎麻, 混纺比, 显微投影法, 测量不确定度

Abstract:

In order to evaluate accuracy in measuring the blending ratio of cotton/ramie according to FZ/T 30003--2009 《QuantativeAnalysis on Cotton/Ramie Blended Textiles by Micro--profection Method》, the source of the uncertainty was discussed. Four main uncertainties including fiber length, diameter, fiber number and densities were calculated. Meanwhile, the influence of cutting length of cotton and ramie fibers on measurement accuracy of fibers content was discussed. It is found that the neglecting on difference of fibers length results in 0.8% detection error. The results show that the uncrtainty introduced by equivalent diameter is the largest while by equivalent diameter is the largest while by density is the smallest when measuring the blending ratio of cotton and ramie by FZ/T 30003--2009. In order to improve measurement efficiency, the difference in fibers cutting length could be neglected within the allowed error range.

Key words: cotton, ramie, blended ratio, micro-profection, measurement of uncertainty

巫莹柱梁家豪范菲李孔兰杜婷单颖法. 显微投影法测定棉/苎麻混纺比的不确定度评定[J]. 纺织学报, 2018, 39(11): 33-37.

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