SIST EN ISO 8340:2005

Building construction - Sealants - Determination of tensile properties at maintained extension (ISO 8340:2005)

ISO 8340:2005 specifies a method for the determination of the tensile properties at maintained extension of sealants used in joints in building construction.

Hochbau - Fugendichtstoffe - Bestimmung des Zugverhaltens unter Vorspannung (ISO 8340:2005)

Diese Internationale Norm legt ein Verfahren zur Bestimmung des Zugverhaltens von Dichtstoffen unter Vorspannung fest, die zur Abdichtung von Fugen im Hochbau verwendet werden.
ANMERKUNG   Ein Verfahren zur Bestimmung des Zugverhaltens (Dehnung bis zum Bruch) ist in ISO 8339 festgelegt.

Construction immobiliere - Mastics - Détermination des propriétés de déformation sous traction maintenue (ISO 8340:2005)

L'ISO 8340:2005 spécifie une méthode de détermination des propriétés de déformation sous traction maintenue des mastics utilisés pour les joints dans la construction immobilière.

Gradnja objektov – Lepila - Tesnilne mase - Ugotavljanje nateznih lastnosti pri vzdrževanem raztezku (ISO 8340:2005)

General Information

• Status: Published
• Publication Date: 31-Aug-2005
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: ISS SPL.GPO - Building construction
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Sep-2005
• Due Date: 01-Sep-2005
• Completion Date: 01-Sep-2005
• Ref Project: EN ISO 8340:2005 - Building construction - Sealants - Determination of tensile properties at maintained extension (ISO 8340:2005)

Overview

EN ISO 8340:2005 - adopted by CEN as the European version of ISO 8340:2005 - specifies a laboratory method for determining the tensile properties of building sealants under maintained extension. The standard defines how to prepare, condition and test sealant specimens adhered between substrates and held at a fixed elongation so that loss of adhesion or cohesion can be observed and measured. It is intended for sealants used in joints in building construction.

Key topics and technical requirements

• Scope: Method for determination of tensile properties at maintained extension (not to be confused with extension-to-break tests covered in ISO 8339).
• Specimen preparation: Sealant is cast between two parallel substrates (mortar, anodized aluminium or glass) using 12 mm × 12 mm spacers and an anti-adherent backing film; manufacturer’s instructions (primers, mixing) are followed.
• Apparatus:
  • Tensile test machine with extension rate (5.5 ± 0.7) mm/min.
  • Refrigerated enclosure for −20 ± 2 °C conditioning.
  • Ventilated oven at (70 ± 2) °C and distilled-water immersion containers for conditioning cycles.
  • Separators to hold elongation at 25 %, 60 % or 100 % of original width (examples: to 15 mm, 19.2 mm, 24 mm).
  • Measuring device readable to 0.5 mm for depth of failure.
• Conditioning: Two alternatives -
  • Method A: 28 days at (23 ± 2) °C and (50 ± 5) % RH.
  • Method B: Method A followed by three heat/water cycles (oven 70 °C / water immersion at 23 °C) and a 24 h return to lab conditions.
• Test temperatures: Specimens tested at (23 ± 2) °C and (−20 ± 2) °C; maintained elongation held for 24 h; any loss of adhesion/cohesion measured after testing.
• Reporting: Test laboratory, date, reference to EN ISO 8340, sealant name/type/colour, batch, substrate, primer, conditioning method, elongation %, depth of loss (mm) for each specimen and deviations from the standard.

Applications and users

• Who uses it: Sealant manufacturers (R&D and quality control), independent testing laboratories, product certifiers, specifiers, architects and façade engineers, and building-material procurement teams.
• Practical uses: Demonstrating sealant performance under sustained joint movement, comparing formulations, supporting technical data sheets, compliance testing for product standards and building specifications, and informing installation guidance for jointing products.

Related standards

• ISO 6927 - Sealants vocabulary (definitions referenced).
• ISO 8339 - Tensile properties (extension to break) - complementary method.
• ISO 13640 - Specification for test substrates used in jointing-product tests.

Keywords: EN ISO 8340:2005, sealant testing, tensile properties, maintained extension, building construction sealants, sealant conditioning, tensile test machine, jointing products.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2005
1DGRPHãþD
SIST EN 28340:1996
Gradnja objektov – Lepila - Tesnilne mase - Ugotavljanje nateznih lastnosti pri
vzdrževanem raztezku (ISO 8340:2005)
Building construction - Sealants - Determination of tensile properties at maintained
extension (ISO 8340:2005)
Hochbau - Fugendichtstoffe - Bestimmung des Zugverhaltens unter Vorspannung (ISO
8340:2005)
Construction immobiliere - Mastics - Détermination des propriétés de déformation sous
traction maintenue (ISO 8340:2005)
Ta slovenski standard je istoveten z: EN ISO 8340:2005
ICS:
91.100.50 Veziva. Tesnilni materiali Binders. Sealing materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 8340
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2005
ICS 91.100.50 Supersedes EN 28340:1990
English version
Building construction - Sealants - Determination of tensile
properties at maintained extension (ISO 8340:2005)
Construction immobilière - Mastics - Détermination des Hochbau - Fugendichtstoffe - Bestimmung des
propriétés de déformation sous traction maintenue (ISO Zugverhaltens unter Vorspannung (ISO 8340:2005)
8340:2005)
This European Standard was approved by CEN on 25 May 2005.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8340:2005: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 8340:2005) has been prepared by Technical Committee ISO/TC 59
"Building construction" in collaboration with CMC.

This European Standard shall be given the status of a national standard, either by publication of
an identical text or by endorsement, at the latest by December 2005, and conflicting national
standards shall be withdrawn at the latest by December 2005.

This document supersedes EN 28340:1990.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO 8340:2005 has been approved by CEN as EN ISO 8340:2005 without any
modifications.
INTERNATIONAL ISO
STANDARD 8340
Second edition
2005-06-15
Building construction — Sealants —
Determination of tensile properties at
maintained extension
Construction immobilière — Mastics — Détermination des propriétés de
déformation sous traction maintenue

Reference number
ISO 8340:2005(E)
©
ISO 2005
ISO 8340:2005(E)
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ISO 8340:2005(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Definitions . 1
4 Principle. 1
5 Apparatus . 1
6 Preparation of test specimens . 2
7 Conditioning of test specimens . 2
8 Test procedure . 3
9 Test report . 3

ISO 8340:2005(E)
Foreword
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Attention is drawn to the possibility that some of the elements o
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