标准摘要
[中文适用范围]: 本文件规定了一种定量方法,使用质子(1H)核磁共振(NMR)光谱法,测定原料环氧化天然橡胶(ENR)的环氧化和开环水平。本方法适用于市售所有等级的 ENR。 [外文原描述]: This document specifies a quantitative method, using proton ( 1 H) nuclear magnetic resonance (NMR) spectrometry, for the determination of epoxidation and ring opening level of raw epoxidized natural rubber (ENR). This method applies to ENR of all grades available commercially.
英文名称Epoxidized natural rubber — Determination of epoxidation and ring opening level by NMR spectrometry