GB/T 13477.20-2002 in English

《GB/T 13477.20-2002建筑密封材料试验方法 第20部分:污染性的测定》由TC195（全国轻质与装饰装修建筑材料标准化技术委员会）归口，TC195SC3（全国轻质与装饰装修建筑材料标准化技术委员会建筑密封材料分会）执行，主管部门为中国建筑材料联合会。
GB/T 13477的本部分规定了建筑密封材料污染性的测定方法。本部分的试验方法A适用于单组分溶剂型密封材料组分渗出、扩散程度的测定。其他类型的密封材料也可参照采用。本部分的试验方法B适用于在加速试验条件下弹性密封材料对多孔基材（如大理石、石灰石、砂石、花岗石等）污染性的测定。

Scope

This part of GB/T 13477 specifies the method for the determination of the pollution of building sealing materials. The test method A in this part is applicable to the determination of the exudation and diffusion degree of components of single-component solvent-based sealing materials. Other types of sealing materials can also be adopted by reference. The test method B in this part is applicable to the determination of the pollution of elastic sealing materials to porous substrates (such as marble, limestone, sandstone, granite, etc.) under accelerated test conditions.