标准摘要
[中文适用范围]： 本文件规定了测定橡胶及橡胶制品（包括聚氨酯）中生物基碳含量的测量方法。这些方法针对橡胶或橡胶制品中的碳原子，通过测定14C（放射性碳同位素）的浓度，判断含碳组分是否为生物基来源。本文件适用于橡胶及橡胶制品的原材料、材料及最终产品。 [外文原描述]： This document specifies measuring methods for the determination of biobased carbon contents in rubber and rubber products, including polyurethanes. The methods focus on carbon atoms in rubber or rubber products, and determine whether the carbon-containing component is biobased or not, judging from the concentration of 14 C, radiocarbon isotope. This document applies to rubber and rubber products such as raw materials, materials and final products.
英文名称Rubber and rubber products — Determination of biobased content — Part 2: Biobased carbon content