SIST EN 4708-107:2019
(Main)Aerospace series - Sleeving, heat-shrinkable, for binding, insulation and identification - Part 107: Polytetrafluoroethylene (PTFE) - Operating temperatures - 65 °C to 260 °C - Product standard
Aerospace series - Sleeving, heat-shrinkable, for binding, insulation and identification - Part 107: Polytetrafluoroethylene (PTFE) - Operating temperatures - 65 °C to 260 °C - Product standard
This document specifies the required characteristics for a heat-shrinkable, polytetrafluoroethylene sleeving for use in aircraft electrical systems at operating temperatures between 65 °C and 260 °C. This sleeving is basically translucent. It is semi-rigid, and suitable for use where resistance to chemicals and high temperature performance are required. It is flame resistant and available in low and high shrink ratios.
Luft- und Raumfahrt - Wärmeschrumpfender Schlauch zur Befestigung, Isolierung und Identifizierung - Teil 107: Polytetrafluorethylen (PTFE) - Temperaturbereich - 65 °C und 260 °C - Produktnorm
Dieses Dokument legt die Eigenschaften für einen wärmeschrumpfenden Schlauch aus Polytetrafluorethylen zur Verwendung in elektrischen Systemen von Luftfahrzeugen bei Betriebstemperaturen zwischen −65 °C und 260 °C fest. Diese Schläuche sind grundsätzlich durchscheinend. Sie sind halbsteif und zur Verwendung an Stellen geeignet, an denen eine Beständigkeit gegen Chemikalien und eine hohe Temperaturleistung erforderlich sind. Sie sind flammbeständig und in niedrigen und hohen Schrumpfverhältnissen erhältlich.
Typ A Niedriges Schrumpfverhältnis
Typ B Hohes Schrumpfverhältnis
Série aérospatiale - Manchons thermorétractables, de jonction, isolement et identification - Partie 107 : Polytétrafluoroéthylène (PTFE) - Températures d'utilisation - 65 °C à 260 °C - Norme de produit
Le présent document spécifie les caractéristiques requises pour un manchon thermorétractable, en polytétrafluoroéthylène, destiné à être utilisé dans les systèmes électriques des aéronefs à des températures comprises entre 65 °C et 260 °C. Ce manchon est essentiellement translucide. Il est semi-rigide et est approprié à un usage nécessitant une résistance aux produits chimiques et aux températures élevées. Il est ininflammable et est disponible avec des coefficients de rétreint faible et élevé.
Type A Faible coefficient de rétreint
Type B Coefficient de rétreint élevé
Aeronavtika - Toplotno skrčljiva cev za utrjevanje, izolacijo in identifikacijo - 107. del: Politetrafluoretilen (PTFE) - Delovna temperatura od –65 °C do 260 °C - Standard za proizvod
Ta standard določa zahtevane lastnosti toplotno skrčljivih politetrafluoretilenskih cevi za uporabo v električnih sistemih letal pri delovni temperaturi od –65 °C do 260 °C. Ta cev je v osnovi prosojna. Je poltoga in primerna za uporabo, pri kateri sta potrebni odpornost proti kemikalijam in visoka temperaturna zmogljivost. Je odporna proti plamenom ter na voljo z nizkimi in visokimi razmerji krčenja. Tip A – nizko razmerje krčenja; tip B – visoko razmerje krčenja.
General Information
Overview
SIST EN 4708-107:2019 is a European aerospace standard developed by CEN, specifying the requirements for heat-shrinkable sleeving made from polytetrafluoroethylene (PTFE). Designed specifically for aircraft electrical systems, this sleeving operates effectively in extreme temperatures ranging from -65 °C to 260 °C. The standard defines two types of sleeving based on shrink ratios: Type A (Low Shrink Ratio) and Type B (High Shrink Ratio).
The sleeving is semi-rigid and translucent, offering excellent resistance to chemicals, high temperatures, and flame. Its properties make it ideal for insulation, binding, and identification purposes within aerospace electrical wiring systems.
Key Topics
Material and Characteristics
EN 4708-107 requires heat-shrinkable sleeving composed of PTFE, valued for its outstanding chemical resistance and thermal stability. The sleeving is semi-rigid and translucent to provide visible identification while maintaining structural integrity.Performance Requirements
The sleeving must resist operating temperatures between -65 °C and 260 °C without degradation. It is flame resistant and comes in sizes accommodating different wire diameters with precise dimensional tolerances for both expanded and recovered states.Shrink Ratios
Two shrink ratio types are defined:- Type A – Low Shrink Ratio
- Type B – High Shrink Ratio
This flexibility enables fitting over various cable diameters.
Testing Methods
The standard specifies comprehensive testing to ensure quality, including:- Dimensional accuracy and wall thickness
- Heat shock resistance (up to 400 °C)
- Tensile strength (minimum 17 MPa) and elongation at break (minimum 200%)
- Breakdown voltage testing according to IEC 60684-2
- Resistance to selected aerospace fluids such as fuels, hydraulic fluids, cleaning agents, and de-icers
- Flame propagation tests limiting burn time to 15 seconds, among others
Quality Assurance
Conformance to quality assurance protocols as detailed in EN 4708-001 ensures consistent production and performance standards.
Applications
SIST EN 4708-107:2019 PTFE heat-shrink sleeving is essential for aerospace electrical systems, especially where:
- Insulation protection is required at extreme temperature conditions.
- Resistance to chemicals and aviation fluids is critical to maintain system integrity.
- Flame retardancy is necessary to meet rigorous aviation safety standards.
- Binding and identification of cables and wire harnesses need a durable, heat-resistant solution.
- Maintenance and installation require sleeving materials that accommodate varying cable diameters via low and high shrink ratios.
This standard's compliance helps manufacturers and suppliers produce materials that meet aerospace industry's strict demands for safety, reliability, and longevity under demanding operational environments.
Related Standards
- EN 4708-001: Aerospace series - Heat-shrinkable sleeving technical specifications. This document covers the general technical specification and quality assurance for heat-shrinkable sleeving applied to aerospace.
- EN 3909: Test fluids and methods for electrical components used in aerospace applications, ensuring chemical compatibility.
- IEC 60684-1 & IEC 60684-2: International standards for flexible insulating sleeving, defining terms and test methods referenced by EN 4708-107.
- IEC 60757: Standardized code for colour designation used for identification of sleeving.
- MIL-PRF-87937 & AMS 1476: Specifications covering related aerospace materials and cleaning compounds.
By adhering to SIST EN 4708-107:2019, aerospace manufacturers ensure that PTFE heat-shrinkable sleeving is fit for service in harsh conditions, providing reliable insulation, chemical resistance, and identification for aircraft wiring systems. This supports safety, performance, and regulatory compliance in the aerospace sector.
Frequently Asked Questions
SIST EN 4708-107:2019 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Sleeving, heat-shrinkable, for binding, insulation and identification - Part 107: Polytetrafluoroethylene (PTFE) - Operating temperatures - 65 °C to 260 °C - Product standard". This standard covers: This document specifies the required characteristics for a heat-shrinkable, polytetrafluoroethylene sleeving for use in aircraft electrical systems at operating temperatures between 65 °C and 260 °C. This sleeving is basically translucent. It is semi-rigid, and suitable for use where resistance to chemicals and high temperature performance are required. It is flame resistant and available in low and high shrink ratios.
This document specifies the required characteristics for a heat-shrinkable, polytetrafluoroethylene sleeving for use in aircraft electrical systems at operating temperatures between 65 °C and 260 °C. This sleeving is basically translucent. It is semi-rigid, and suitable for use where resistance to chemicals and high temperature performance are required. It is flame resistant and available in low and high shrink ratios.
SIST EN 4708-107:2019 is classified under the following ICS (International Classification for Standards) categories: 49.025.40 - Rubber and plastics; 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase SIST EN 4708-107:2019 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2019
Aeronavtika - Toplotno skrčljiva cev za utrjevanje, izolacijo in identifikacijo - 107.
del: Politetrafluoretilen (PTFE) - Delovna temperatura od –65 °C do 260 °C -
Standard za proizvod
Aerospace series - Sleeving, heat-shrinkable, for binding, insulation and identification -
Part 107: Polytetrafluoroethylene (PTFE) - Operating temperatures - 65 °C to 260 °C -
Product standard
Luft- und Raumfahrt - Wärmeschrumpfender Schlauch zur Befestigung, Isolierung und
Identifizierung - Teil 107: Polytetrafluorethylen (PTFE) - Temperaturbereich - 65 °C und
260 °C - Produktnorm
Série aérospatiale - Manchons thermorétractables, de jonction, isolement et identification
- Partie 107 : Polytétrafluoroéthylène (PTFE) - Températures d'utilisation - 65 °C à 260
°C - Norme de produit
Ta slovenski standard je istoveten z: EN 4708-107:2019
ICS:
49.025.40 Guma in polimerni materiali Rubber and plastics
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 4708-107
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2019
EUROPÄISCHE NORM
ICS 49.060
English Version
Aerospace series - Sleeving, heat-shrinkable, for binding,
insulation and identification - Part 107:
Polytetrafluoroethylene (PTFE) - Operating temperatures -
65 °C to 260 °C - Product standard
Série aérospatiale - Manchons thermorétractables, de Luft- und Raumfahrt - Wärmeschrumpfender Schlauch
jonction, isolement et identification - Partie 107 : zur Befestigung, Isolierung und Identifizierung - Teil
Polytétrafluoroéthylène (PTFE) - Températures 107: Polytetrafluorethylen (PTFE) -
d'utilisation - 65 °C à 260 °C - Norme de produit Temperaturbereich -65 °C bis 260 °C - Produktnorm
This European Standard was approved by CEN on 14 July 2019.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4708-107:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Required characteristics . 5
5 Quality assurance . 12
6 Designation . 12
7 Labelling and packaging . 12
8 Technical specification . 12
European foreword
This document (EN 4708-107:2019) has been prepared by the Aerospace and Defence Industries
Association of Europe — Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
ASD, prior to its presentation to CEN.
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 March 2020, and conflicting national standards shall be
withdrawn at the latest by March 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
1 Scope
This document specifies the required characteristics for a heat-shrinkable, polytetrafluoroethylene
sleeving for use in aircraft electrical systems at operating temperatures between 65 °C and 260 °C.
This sleeving is basically translucent. It is semi-rigid, and suitable for use where resistance to chemicals
and high temperature performance are required. It is flame resistant and available in low and high
shrink ratios.
Type A Low Shrink Ratio
Type B High Shrink Ratio
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 3909, Aerospace series — Test fluids and test methods for electrical and optical components and
sub-assemblies
EN 4708-001, Aerospace series — Sleeving, heat-shrinkable, for binding, insulation and identification —
1)
Part 001: Technical specification
EN 60684-1, Flexible insulating sleeving — Part 1: Definitions and general requirements (IEC 60684-1)
EN 60684-2, Flexible insulating sleeving — Part 2: Methods of test (IEC 60684-2)
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
2)
IEC 60757, Code for designation of colours
3)
MIL-PRF-87937, Performance specification: Cleaning compound, aerospace equipment
4)
AMS 1476, Deodorant, aircraft toilet
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60684-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
ISO Online browsing platform: available at http://www.iso.org/obp
IEC Electropedia: available at http://www.electropedia.org/
1) Published as ASD-STAN Prestandard at the date of publication of this standard by AeroSpace and Defence industries
Association of E
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