標準號：ISO 16938-1-2008
中文標準名稱：建筑構件.接合處多孔基底用密封劑的著色測定.第1部分:壓縮試驗
英文標準名稱：Building construction - Determination of the staining of porous substrates by sealants used in joints - Part 1: Test with compression
標準類型：Q24
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Q24
國際標準分類號：91.100.50
引用標準：ISO 4892-1;ISO 4892-2-2006;ISO 4892-3;ISO 6927;ISO 11431-2002
適用范圍：This part of ISO 16938 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 likelihoodof a sealant causing an early stain on a porous substrate due to exudation of materials from the sealant. Theoutcome of the test is specific to the tested sealant and tested substrate and cannot be extrapolated to othersealant formulations or other porous substrates. During this accelerated test, if the sealant does not stain ordiscolour the substrates, it does not mean that the tested sealant will not stain or discolour the tested poroussubstrate over a longer time period. Experience in various countries with similar test methods has shown thatthe compression of test specimens further accelerates the occurrence of staining.