SIST EN 4505:2014

Aerospace series - Non-metallic materials - Textiles - Test method - Determination of dimensional stability

This standard specifies the procedure for the determination of dimensional stability of narrow fabrics.

Luft- und Raumfahrt - Nichtmetallische Werkstoffe - Textilien - Prüfverfahren - Bestimmung der Maßänderung

Série aérospatiale - Matériaux non-métalliques - Textiles - Méthode d'essai - Détermination de la stabilité

Aeronavtika - Nekovinski materiali - Tekstilije - Preskusne metode - Določanje dimenzijske stabilnosti

General Information

• Status: Published
• Publication Date: 02-Jan-2014
• ICS: 49.025.60 - Textiles
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 23-Dec-2013
• Due Date: 27-Feb-2014
• Completion Date: 03-Jan-2014
• Ref Project: EN 4505:2013 - Aerospace series - Non-metallic materials - Textiles - Test method - Determination of dimensional stability

Overview

SIST EN 4505:2014 is a European standard developed by CEN that specifies the test method for determining the dimensional stability of narrow fabrics used in aerospace applications. This standard is part of the aerospace series concerning non-metallic materials, particularly textiles, and outlines a reliable procedure to measure how narrow fabrics retain their dimensions after exposure to boiling water. Dimensional stability is critical in aerospace textile materials to ensure performance, durability, and safety under varying environmental conditions.

Key Topics

• Scope: Specifies procedures to assess dimensional changes (shrinkage or extension) of narrow fabrics after immersion in boiling water.
• Dimensional Stability Definition: The ability of a fabric to maintain its dimensions under thermal and wet conditions, particularly after boiling.
• Testing Principle: Measurement of fabric length changes before and after 15 minutes of immersion in boiling water.
• Specimen Preparation: Cutting samples no less than 450 mm in length and marking measurement points.
• Test Procedure:
  • Measuring initial length under a plate glass sheet
  • Boiling the specimens immersed 25 mm below the water surface
  • Drying and conditioning the fabric according to ISO 139 standards after removal
  • Re-measuring length to evaluate dimensional change
• Calculation Method:
  • Percentage dimensional change (shrinkage or extension) calculated by the formula:
    Cl (%) = [(d1 - d2) / d2] × 100
    where d1 = final length, d2 = original length
• Reporting Requirements:
  • Reference to EN 4505 standard
  • Sample identification (lot/batch number)
  • Percentage change with sign indication (+ for extension, - for shrinkage)
  • Any deviations from test method to ensure transparency and repeatability

Applications

SIST EN 4505:2014 plays an essential role in quality assurance and material testing within the aerospace industry. The standard ensures that narrow fabrics used in aircraft interiors, safety equipment, insulation, and other aerospace textile components meet stringent dimensional stability requirements. This prevents issues such as distortion, fitting problems, or reduced material performance under high-temperature conditions.

By following this standard, manufacturers and engineers can:

• Validate material properties to comply with aerospace specifications
• Ensure long-term dimensional reliability of textile components
• Prevent premature fabric deformation that could affect safety or functionality
• Facilitate supplier quality control and certification of non-metallic aerospace materials

Related Standards

• ISO 139: Standard atmospheres for conditioning and testing textiles, referenced by EN 4505 for specimen conditioning requirements.
• Other aerospace textile standards published by ASD-STAN that address related material properties such as strength, abrasion resistance, and flammability.

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Keywords: EN 4505, dimensional stability, aerospace textiles, narrow fabrics, non-metallic materials, test method, fabric shrinkage, fabric extension, boiling water test, aerospace standards, CEN, ISO 139 conditioning, textile testing, aerospace quality assurance.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Nichtmetallische Werkstoffe - Textilien - Prüfverfahren - Bestimmung der MaßänderungSérie aérospatiale - Matériaux non-métalliques - Textiles - Méthode d'essai - Détermination de la stabilitéAerospace series - Non-metallic materials - Textiles - Test method - Determination of dimensional stability49.025.60TekstilijeTextilesICS:Ta slovenski standard je istoveten z:EN 4505:2013SIST EN 4505:2014en01-februar-2014SIST EN 4505:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4505
July 2013 ICS 49.025.60 English Version
Aerospace series - Non-metallic materials - Textiles - Test method - Determination of dimensional stability
Série aérospatiale - Matériaux non-métalliques - Textiles - Méthode d'essai - Détermination de la stabilité
Luft- und Raumfahrt - Nichtmetallische Werkstoffe - Textilien - Prüfverfahren - Bestimmung der Maßänderung This European Standard was approved by CEN on 8 May 2013.
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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
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B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4505:2013: ESIST EN 4505:2014
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