标准摘要
[中文适用范围]： 本文件规定了不透明密封胶在使用人工光源进行实验室加速老化试验后颜色变化的测定方法。本文件不适用于金属色、珍珠色、半透明或透明密封胶。 [外文原描述]： This document specifies a method for the determination of the changes in colour of opaque sealants after laboratory accelerated weathering procedures using artificial light sources. This document is not applicable to metallic, pearlescent, translucent or transparent sealants.
英文名称Building and civil engineering sealants — Determination of changes in colour after laboratory accelerated weathering procedures