本文件规定了乙烯/醋酸乙烯酯（EVAC）共聚物中醋酸乙烯酯（VAC）含量的两类测定方法，用于根据ISO 21301-1指定此类共聚物。一类称为“参考方法”，另一类称为“试验方法”。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies two categories of method for the determination of the vinyl acetate (VAC) content of ethylene/vinyl acetate (EVAC) copolymer, for use in the designation of such copolymers according to ISO 21301-1. One category is referred to as "reference methods", the other as "test methods".All current amendments available at time of purchase are included with the purchase of this document.