透明热封聚丙烯中乙烯含量标准物质定值不确定度的评定

Synthetic Materials Aging and Application(2017)

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Abstract
以乙丙丁三元共聚聚丙烯为乙烯含量标准物质定值样品,对乙烯含量测量不确定度的来源进行了分析和评定.结果表明,影响乙丙丁三元共聚聚丙烯乙烯含量标准物质不确定度的因素主要有样品均匀性、样品稳定性和各实验室定值结果的重复性.经过评定,乙丙丁三元共聚聚丙烯乙烯含量标准物质测定的不确定度为0.06,标称值为2.62±0.06.
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