ISO 13638:2021 PDF

Name: ISO 13638:2021 — Building and civil engineering sealants — Determination of resistance to prolonged exposure to water
SKU: ISO 13638:2021
Price: 25 EUR
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Building and civil engineering sealants — Determination of resistance to prolonged exposure to water

Название (английский):

ISO 13638:2021

Building and civil engineering sealants — Determination of resistance to prolonged exposure to water

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 7
Дата публикации:: 10 марта 2021 г.
Издание:: ISO IS 13638 edition 2 version 1
ICS:: 91.100.50

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Описание (английский):

This document specifies a method for the determination of the ability of sealants to resist differing degrees of exposure to water under conditions of service. The method assesses the effects of water immersion, for specified durations of time, on the ability of the sealant to fulfil its essential functions, principally to withstand joint movement.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 13638:2021 - "Building and civil engineering sealants - Determination of resistance to prolonged exposure to water" - specifies a laboratory method to evaluate how sealants perform after prolonged water exposure. The standard measures the effect of water immersion (at ambient or elevated temperatures) combined with cyclic extension/compression on a sealant’s ability to fulfil its essential function, principally its capacity to withstand joint movement. This test procedure helps assess sealant durability and suitability for water-exposed building and civil engineering applications.

Key Topics

Test principle: prepare bonded sealant specimens between two substrates, immerse in water for specified periods, then subject specimens to repeated cyclic movement to simulate service stress.

Conditioning methods:

Method A - 28 days at (23 ± 2) °C and 50 ± 10 % RH.
Method B - Method A plus repeated heat/water cycles (70 °C oven and distilled water) to accelerate effects.

Water immersion: immersion in distilled water at (23 ± 2) °C, (40 ± 2) °C or (50 ± 2) °C for 3 weeks (typical), with repetition as specified.

Cyclic movement: amplitude set to 50% of the sealant’s movement accommodation (per ISO 11600), using ±6.25 %, ±10 % or ±12.5 % cycles at (5.5 ± 0.5) mm/min; specimens are held in extension/compression for 24 h per stage.

Failure criteria and inspection: visual inspection for adhesion/cohesion loss; failures exceeding 2 mm depth (outside excluded end zones) constitute specimen failure. Tests repeat until specified acceptance or multiple failures occur.

Apparatus & specimen preparation: substrates per ISO 13640 (mortar, anodized aluminium, or glass), spacers, anti-adherent film, temperature-controlled immersion containers, and a cyclic test machine.

Reporting requirements: include sealant type and batch, substrate, primer, mixing ratio, conditioning method, immersion temperature, amplitude, total number of cycles, inspection results, and any deviations.

Applications

Who uses ISO 13638:2021 and why:

Sealant manufacturers - to validate product formulations for wet-service durability and support product data sheets.

Testing laboratories - to perform standardized water-resistance testing for compliance, comparison, or R&D.

Specifiers, architects and engineers - to choose sealants suitable for water-exposed joints in buildings and civil works.

Quality managers and procurement - to require objective evidence of water resistance in supply contracts and performance specifications.

Practical benefits include improved durability assessment, risk reduction for water-exposed joints, and clearer evidence for performance claims.

ISO 13638:2021 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

ISO 11600:2002/Amd 1:2011

Building construction — Jointing products — Classification and requirements for sealants — Amendment 1

BS ISO 13640:2025

Building and civil engineering sealants — Specifications for test substrates.

SIST EN ISO 9046:2021

Building and civil engineering sealants - Determination of adhesion/cohesion properties at constant temperatu…

SIST EN ISO 9047:2008/AC:2010

Building construction - Jointing products - Determination of adhesion/cohesion properties of sealants at vari…

SIST EN ISO 6927:2021

Buildings and civil engineering sealants - Vocabulary (ISO 6927:2021)