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ISO 16938-2:2019

Buildings and civil engineering works — Determination of the staining of porous substrates by sealants used in joints — Part 2: Test without compression
19 sht 2019

General information

90.93     26 maj 2025

ISO

ISO/TC 59/SC 8

International Standard

91.100.50  

anglisht   frëngjisht  

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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WITHDRAWN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 16938-2:2008

NOW

PUBLISHED
ISO 16938-2:2019
90.93 Standard confirmed
26 maj 2025