CE认证标准EN ISO 1183-2《塑料 - 非泡沫塑料密度的测定方法 - 第 2 部分：密度梯度柱法》

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.

本文件规定了测定无孔形式的非多孔模制或挤出塑料或颗粒密度的梯度柱方法。 密度梯度柱是含有两种液体混合物的柱，柱中的密度从上到下均匀增加。 注：密度经常用于跟踪塑料材料的物理结构或成分的变化。 密度还可用于评估样品或样本的均匀性。 塑料材料的密度取决于样品制备方法的选择。 在这种情况下，样本制备方法的细节应包含在适当的材料规范中。

Test Requirement 测试要求：

Density 密度

Sample Size 样品数量 / 送样规格: 100g左右样品, 粒料或成品均可
Lead Time / TAT (Turn Around Time) 测试周期: 常规服务 Regular service 7-9 working days

Report Summary 报告摘要: