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ISO 16938-1:2019

Buildings and civil engineering works — Determination of the staining of porous substrates by sealants used in joints — Part 1: Test with compression

Sep 19, 2019

General information

90.93     May 26, 2025

ISO

ISO/TC 59/SC 8

International Standard

91.100.50  

English   French  

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Published

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 16938-1:2008

NOW

PUBLISHED
ISO 16938-1:2019
90.93 Standard confirmed
May 26, 2025