标准摘要
[中文适用范围]： 本文件规定了测定建筑施工中使用的密封剂对多孔基材（例如大理石、石灰石、砂岩或花岗岩）染色的方法。 该方法评估密封剂由于材料从密封剂渗出而在多孔基材上造成早期污染的可能性。 测试结果特定于所测试的密封剂和所测试的基材，不能外推到其他密封剂配方或其他多孔基材。 在该加速测试过程中，如果密封剂没有使基材染色或变色，并不意味着所测试的密封剂在较长时间内不会使所测试的多孔基材染色或变色。 [外文原描述]： This document specifies a method for determining the staining of porous substrates (e.g. marble, limestone, sandstone, or granite) by sealants used in building construction. The method evaluates the likelihood of a sealant causing an early stain on a porous substrate due to exudation of materials from the sealant. The outcome of the test is specific to the tested sealant and tested substrate and cannot be extrapolated to other sealant formulations or other porous substrates. During this accelerated test, if the sealant does not stain or discolour the substrates, it does not mean that the tested sealant will not stain or discolour the tested porous substrate over a longer time period.
英文名称Buildings and civil engineering works — Determination of the staining of porous substrates by sealants used in joints — Part 2: Test without compression