用于不同塑料加工技术的机械回收聚丙烯（PP）和聚乙烯（PE）的测试和表征

[中文适用范围]： 本文件规定了评估用于传统塑料加工技术的粒状或颗粒状机械回收聚丙烯 [PP (REC)] 和聚乙烯 [PE (REC)] 重要性能的测试方法。 为确定 PP (REC) 和 PE (REC) 的特性提供了一般指导，它们可以 100% 或与标准（原始）材料等级按比例使用，可用于注塑、吹塑、挤出技术的类型等。 本文件旨在帮助打算使用回收材料的塑料加工商和最终用户就产品规格达成一致（如果适用）。 国家特定的健康和食品安全以及环境相关的塑料回收利用法规不属于本文件的范围。 PP 和 PE 回收物的混合物不属于本文件的范围。 [外文原描述]： This document specifies test methods for assessing important properties of mechanically recycled polypropylene [PP (REC)] and polyethylene [PE (REC)] in granular or pellet form for use in conventional plastics processing techniques. General guidance is provided for determining the characteristics of PP (REC) and PE (REC), which can be used at 100 % or in a proportion with standard (virgin) material grades available for processing on machines such as injection moulding, blow moulding, types of extrusion techniques, etc. This document intends to help plastics processors and end users who intend to use recyclates with agreement on product specifications, as applicable. Country specific health and food-safety and environment related regulations for use of plastics recyclates are not in the scope of this document. Mixture of recyclates of PP and PE is not in the scope of this document.