本文件规定了从相同条件下获得的热解图（热解气相色谱图）中识别原橡胶和硫化或未硫化化合物中的聚合物或聚合物混合物的方法。这允许对单一橡胶或混合橡胶进行定性识别，以下讨论的例外情况除外。本文件不用于定量分析。 该方法首先适用于单一聚合物。当热解图显示特征碳氢化合物时，该方法也适用于混合物。详情见第5条。当分析员在每个特定情况下进行验证时，该方法也适用于其他类型的聚合物。 注:本文件的使用前提是对气相色谱原理和技术有足够的工作知识，以使分析员能够执行所述操作并正确解释结果。

This document specifies a method for the identification of polymers, or blends of polymers, in raw rubbers and in vulcanized or unvulcanized compounds from pyrograms (pyrolysis-gas chromatographic patterns) obtained under the same conditions. This allows qualitative identification of single rubbers or blends, with exceptions discussed below. This document is not intended for quantitative analysis. The method applies first and foremost to single polymers. When the pyrogram indicates a characteristic hydrocarbon, the method is also applicable to blends. For details, see Clause 5. The method can be also applicable to other types of polymer when verified by the analyst in each particular case. NOTE The use of this document pre-supposes sufficient working knowledge of the principles and techniques of gas chromatography to enable the analyst to carry out the operations described and to interpret the results correctly.