The principle of the method is preparing a cyclohexane solution of the sample to be analyzed, measuring the absorbance for the 810 cm and 782 cm bands which are characteristic of the 1,2,4- and 1,2,6-positions on the aromatic ring, and calculating the absorbance ratio. Applies to mixtures containing 5 % to 95 % of the 2,4-isomer.
ISO/TR 9372-1993由国际标准化组织 IX-ISO 发布于 1993-04。
ISO/TR 9372-1993 在中国标准分类中归属于: G31 合成树脂、塑料基础标准与通用方法。
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