1.1本实施规程描述了根据回收塑料的颜色（例如绿色与无色）分离回收塑料的程序，以及清洗脏的研磨塑料的程序，该程序会导致轻材料（密度）的分离 < 1.00克/厘米 3. ). 本规程不代表塑料回收行业中使用的通用清洗程序。所述程序仅用于制备用于其他分析测试的塑料样品。该程序包括室温清洗步骤，以便于分离纸张（例如标签），然后在高温下清洗。 笔记 1-虽然没有作为定量方法提出，但本实践中提出的程序可用于提供定量结果。用户负责验证定量结果的再现性。 1.2以国际单位制表示的数值应视为标准。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 笔记 2-没有已知的ISO等效于本规程。 ====意义和用途====== 污垢、纸张和聚合物材料的混合物使用于识别和量化回收塑料中污染物（如果需要）的程序数据的解释变得复杂。

1.1 The practice describes a procedure for separating recycled plastics based on their color (for example, green versus colorless) and a procedure for washing dirty, ground plastic which results in separation of light materials (density < 1.00 g/cm 3 ). This practice is not intended to represent generic washing procedures used in the plastics recycling industry. The described procedures are solely for preparation of plastic samples for use in other analytical tests. The procedure includes a room temperature wash step to facilitate separation of paper (for example, labels) followed by washing at an elevated temperature. Note 1—Although not presented as a quantitative method, the procedure presented in this practice may be used to provide quantitative results. The user assumes the responsibility to verify the reproducibility of quantitative results. 1.2 The values stated in SI units are to be regarded as the standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Note 2—There is no known ISO equivalent to this practice. ====== Significance And Use ====== Dirt, paper and mixtures of polymeric materials complicate the interpretation of data from procedures used to identify and, if desired, quantify the contaminants in recycled plastics.