90.20 Standard under periodical review Jul 15, 2024
ISO
ISO/TC 59/SC 8 Sealants
International Standard
91.100.50 Binders. Sealing materials
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.
WITHDRAWN
ISO 16938-2:2008
PUBLISHED
ISO 16938-2:2019
90.20
Standard under periodical review
Jul 15, 2024