二级标准黏度液的密度测定

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二级标准黏度液是测量旋转黏度计的标准物质,动力黏度的量值直接与液体的运动黏度和密度相关联.运动黏度的测量按照JJG155-1991进行检定,但是密度的测量方法没有明确的规定.本文在比较了各种密度测量方法的利弊后,提出了用比重瓶测量二级标准黏度液密度的测量方法.该方法测量准确度高、设备简单,避免了二级标准黏度液的挥发性、黏性对密度测量所带来的不利影响.实验表明该方法是一种准确可靠的测量方法.
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