This document specifies three methods for the determination of the density of non-cellular plastics in the form of void-free moulded or extruded objects, as well as powders, flakes and granules. — Method A: Immersion method, for solid plastics (except for powders) in void-free form. — Method B: Liquid pycnometer method, for particles, powders, flakes, granules or small pieces of finished parts. — Method C: Titration method, for plastics in any void-free form. 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. Often, the density of plastic materials 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. This note is applicable to all three methods.

本文件规定了测定无空隙模制或挤出物体以及粉末、薄片和颗粒形式的非泡沫塑料密度的三种方法。 – 方法 A：浸泡法，适用于无空隙的固体塑料（粉末除外）。 – 方法 B：液体比重瓶法，适用于颗粒、粉末、薄片、颗粒或小块成品零件。 – 方法 C：滴定法，适用于任何无空隙形式的塑料。 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。 通常，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，样本制备方法的精确细节应包含在适当的材料规范中。 本注释适用于所有三种方法。

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: