标准编号：ISO 1183-2:2019
中文名称：塑料 非多孔塑料密度的测定方法 第2 部分： 密度倾斜度圆柱法
英文名称：Plastics — Methods for determining the density of non-cellular plastics — Part 2: Density gradient column method
发布日期：2019-03
标准范围
This document specifies a gradient column method for the determination of the density of non-cellular moulded or extruded plastics or pellets in void-free form. Density gradient columns are columns containing a mixture of two liquids, the density in the column increasing uniformly from top to bottom.
NOTE Density is frequently used to follow variations in physical structure or composition of plastic materials. Density can also be useful in assessing the uniformity of samples or specimens. The density of plastic materials can depend upon the choice of specimen preparation method. When this is the case, precise details of the specimen preparation method are intended to be included in the appropriate material specification.
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