SIST EN 3844-3:2019

Aerospace series - Flammability of non metallic materials - Part 3: Small burner test, 45° - Determination of the resistance of material to flame and glow propagation and to flame penetration

This document specifies the test for the determination of the resistance of non-metallic materials in part or in whole to flame and glow propagation and to flame penetration.
This test method is also used for testing non-metallic materials which have to meet the test criteria for the 45° Bunsen burner test.
It is used for evaluation of non-metallic materials or constructions used in the interiors of aerospace vehicles but also may be used in other applications as specified in applicable procurement and regulatory documents.
This standard should be used to measure and describe the properties of non-metallic materials, products or assemblies in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use.

Luft- und Raumfahrt - Entflammbarkeit nichtmetallischer Werkstoffe - Teil 3: Kleinbrenner-Prüfung, 45° - Bestimmung der Beständigkeit eines Materials gegen die Ausbreitung von Flammen und Glimmen und gegen Durchbrennen

Dieses Dokument legt das Prüfverfahren zur Bestimmung der Beständigkeit nichtmetallischer Werkstoffe, im Ganzen oder teilweise, gegen die Ausbreitung von Flammen und Glimmen sowie gegen Durchbrennen fest.
Dieses Prüfverfahren wird ebenfalls zur Prüfung nichtmetallischer Werkstoffe verwendet, die die Prüfkrit-erien für die Bunsenbrennerprüfung (45°) erfüllen müssen.
Es wird zur Bewertung nichtmetallischer Werkstoffe oder Konstruktionen verwendet, die im Inneren von Luft- und Raumfahrzeugen verwendet werden, aber auch in anderen Anwendungen verwendet werden können, wie in geltenden Dokumenten zu Auftragsvergabe und Rechtsvorschriften festgelegt.
Diese Norm sollte zur Messung und Beschreibung der Eigenschaften nichtmetallischer Werkstoffe, Erzeugnisse oder Baugruppen angewendet werden, die unter kontrollierten Laborbedingungen Wärme und Beflammung ausgesetzt sind; sie sollte nicht für die Beschreibung oder Bewertung der Brandgefahr oder des Brandrisikos von Werkstoffen, Erzeugnissen oder Baugruppen bei realen Brandsituationen angewendet werden. Die Prüfergebnisse dürfen jedoch als Elemente einer Bewertung des Brandrisikos verwendet werden, die alle Faktoren berücksichtigt, die eine Bewertung der Brandgefahr einer bestimmten Endanwendung nachhaltig beeinflussen.

Série aérospatiale - Inflammabilité des matériaux non métalliques - Partie 3 : Essai au brûleur, 45° - Détermination de la résistance du matériau à la propagation de la flamme et de l'incandescence, et à la pénétration de la flamme

Le présent document spécifie les essais pour la détermination de la résistance de tout ou partie des matériaux non métalliques à la propagation de la flamme et de l’incandescence, et à la pénétration de la flamme.
Cette méthode d’essai est aussi utilisée pour tester les matériaux non métalliques qui doivent satisfaire aux critères d’essai relatifs à l’essai au brûleur de Bunsen, à 45°.
Elle est utilisée pour évaluer les matériaux et les constructions non métalliques utilisés à l’intérieur des véhicules aérospatiaux mais elle peut aussi être utilisée dans d’autres applications comme spécifié dans les documents d’approvisionnement et réglementaires applicables.
Il convient d’utiliser la présente norme pour mesurer et décrire les propriétés des matériaux, produits ou ensembles non métalliques en réponse à la chaleur et à la flamme dans des conditions contrôlées de laboratoire et non pas pour décrire ou évaluer les dangers ou les risques d’incendie des matériaux, produits ou ensembles dans des conditions réelles d'incendie. Toutefois, les résultats de cet essai peuvent être utilisés en tant qu’éléments d’évaluation des risques d’incendie qui tiennent compte de tous les facteurs pertinents pour faire une évaluation des dangers d’incendie liés à une utilisation finale particulière.

Aeronavtika - Vnetljivost nekovinskih materialov - 3. del: Preskus majhnih gorilnikov, 45° - Ugotavljanje odpornosti materiala proti širjenju ognja in tlenju ter pregorevanju

Ta dokument določa preskusno metodo za ugotavljanje odpornosti nekovinskih materialov deloma ali v celoti proti širjenju ognja in tlenju ter pregorevanju. Ta preskusna metoda se uporablja tudi za preskušanje nekovinskih materialov, ki morajo ustrezati preskusnim merilom za preskus Bunsenovih gorilnikov pod kotom 45°. Uporablja se za vrednotenje nekovinskih materialov ali konstrukcij, ki se uporabljajo v notranjosti aeronavtičnih plovil, uporaba pa je mogoča tudi na drugih področjih uporabe, kot je določeno v veljavnih dokumentih za dobavo in v zakonskih dokumentih. Ta standard se predvidoma uporablja za merjenje in opis lastnosti nekovinskih materialov, proizvodov ali sklopov v odzivu na toploto in ogenj v nadzorovanih laboratorijskih pogojih in se ne uporablja za opis ali oceno požarne nevarnosti ali požarnega tveganja materialov, proizvodov ali sklopov v dejanskih požarnih razmerah. Kljub temu je mogoče rezultate tega preskusa uporabiti kot elemente ocene požarnega tveganja, ki upošteva vse dejavnike, ki se navezujejo na oceno nevarnosti posamezne končne uporabe.

General Information

• Status: Published
• Publication Date: 11-Sep-2019
• ICS: 13.220.40 - Ignitability and burning behaviour of materials and products
• ICS: 49.025.15 - Non-ferrous alloys in general
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 06-Sep-2019
• Due Date: 11-Nov-2019
• Completion Date: 12-Sep-2019
• Ref Project: EN 3844-3:2019 - Aerospace series - Flammability of non-metallic materials - Part 3: Small burner test, 45° - Determination of the resistance of material to flame and glow propagation and to flame penetration

Relations

• Replaces: SIST EN 3844-3:2012 - Aerospace series - Flammability of non metallic materials - Part 3: Small burner test, 45° - Determination of the resistance of material to flame and glow propagation and to flame penetration
• Effective Date: 04-Sep-2019
• Revised: SIST EN 3844-3:2012 - Aerospace series - Flammability of non metallic materials - Part 3: Small burner test, 45° - Determination of the resistance of material to flame and glow propagation and to flame penetration
• Effective Date: 08-Feb-2017

Overview

EN 3844-3:2019 is a CEN aerospace standard that specifies the 45° small burner test for assessing the flammability behaviour of non‑metallic materials. The method determines resistance to flame propagation, glow (after‑glow) and flame penetration when a defined Bunsen-type burner is applied to a specimen held at 45°. Intended primarily for aircraft interior materials, EN 3844-3:2019 provides reproducible laboratory measurements of material response to a controlled flame source - useful as part of broader fire risk assessments but not a standalone measure of real‑world fire hazard.

Key Topics and technical requirements

• Test angle and specimen: specimens are mounted at 45°; minimum exposed area 200 × 200 mm; specimen square size at least 220 × 220 mm.
• Number and conditioning: at least three specimens; conditioned at (23 ± 2) °C and (50 ± 5) % RH for minimum 24 h.
• Burner and fuel: Bunsen or Tirril type with 9.5 mm internal diameter, no air supply, using methane (or natural gas ≥ 90% methane). Burner adjusted to a 38 mm flame height.
• Flame temperature: measured with a Type K thermocouple; flame temperature shall be at least 843 °C.
• Test procedure: flame applied for 30 s; measure after‑flame time and after‑glow time to nearest 0.2 s; report whether flame penetration occurred.
• Apparatus and environment: draught‑free test cabinet (metal bottom, recommended black matte back wall and mirror for observation), specimen holder of corrosion‑resistant metal, controlled gas plumbing and pressure (≈17 kPa at burner inlet).
• Reporting: include specimen description, manufacturer, after‑flame and after‑glow times (individual and averages), flame penetration status, observations (melting, delamination, sagging), deviations, lab and operator details, and test date.

Applications

• Compliance testing for aerospace interiors (seats, linings, insulation, panels).
• Material screening during development of polymers, composites, foams and laminates where small‑scale flammability data are required.
• Supply chain and procurement verification where contractual or regulatory documents call for the 45° small burner test.
• Input for fire safety engineers performing comprehensive fire risk assessments (used alongside other tests and factors).

Who uses this standard

• Aerospace manufacturers and OEMs
• Test and certification laboratories
• Materials engineers and R&D teams
• Procurement officers and regulatory compliance specialists
• Safety and fire protection engineers

Related standards

• EN 3844 series (aerospace flammability methods)
• ASTM D5025 (laboratory burner specification referenced in EN 3844-3)

Keywords: EN 3844-3:2019, aerospace flammability test, 45° small burner test, Bunsen burner, non‑metallic materials, flame propagation, flame penetration, after‑glow, aircraft interior materials.

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2019
Nadomešča:
SIST EN 3844-3:2012
Aeronavtika - Vnetljivost nekovinskih materialov - 3. del: Preskus majhnih
gorilnikov, 45° - Ugotavljanje odpornosti materiala proti širjenju ognja in tlenju ter
pregorevanju
Aerospace series - Flammability of non metallic materials - Part 3: Small burner test, 45°
- Determination of the resistance of material to flame and glow propagation and to flame
penetration
Luft- und Raumfahrt - Entflammbarkeit nichtmetallischer Werkstoffe - Teil 3:
Kleinbrenner-Prüfung, 45° - Bestimmung der Beständigkeit eines Materials gegen die
Ausbreitung von Flammen und Glimmen und gegen Durchbrennen
Série aérospatiale - Inflammabilité des matériaux non métalliques - Partie 3 : Essai au
brûleur, 45° - Détermination de la résistance du matériau à la propagation de la flamme
et de l'incandescence, et à la pénétration de la flamme
Ta slovenski standard je istoveten z: EN 3844-3:2019
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
49.025.15 Neželezove zlitine na Non-ferrous alloys in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3844-3
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2019
EUROPÄISCHE NORM
ICS 49.025.15 Supersedes EN 3844-3:2011
English Version
Aerospace series - Flammability of non-metallic materials -
Part 3: Small burner test, 45° - Determination of the
resistance of material to flame and glow propagation and
to flame penetration
Série aérospatiale - Inflammabilité des matériaux non Luft- und Raumfahrt - Entflammbarkeit
métalliques - Partie 3 : Essai au brûleur, 45° - nichtmetallischer Werkstoffe - Teil 3: Kleinbrenner-
Détermination de la résistance du matériau à la Prüfung, 45° - Bestimmung der Beständigkeit eines
propagation de la flamme et de l'incandescence, et à la Materials gegen die Ausbreitung von Flammen und
pénétration de la flamme Glimmen und gegen Durchbrennen
This European Standard was approved by CEN on 12 May 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 3844-3:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle of method . 5
5 Designation . 5
6 Test apparatus . 5
6.1 Test cabinet . 5
6.2 Specimen holder . 6
6.3 Burner . 6
6.3.1 Burner type . 6
6.3.2 Burner fuel . 6
6.3.3 Plumbing for gas supply . 6
6.3.4 Flame height indicator . 6
6.3.5 Flame Temperature . 6
6.4 Timer . 6
7 Test specimens . 6
7.1 Number of specimens . 6
7.2 Specimens size . 7
8 Conditioning. 7
9 Burner adjustment . 7
10 Test procedure . 7
11 Test report . 8
Annex A (informative) Standard evolution form . 14
Bibliography . 15

European foreword
This document (EN 3844-3:2019) 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 February 2020, and conflicting national standards shall
be withdrawn at the latest by February 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.
This document supersedes EN 3844-3:2011.
According to the CEN-CENELEC Internal Regulations, the national standards organizations 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 test for the determination of the resistance of non-metallic materials in part
or in whole to flame and glow propagation and to flame penetration.
This test method is also used for testing non-metallic materials which have to meet the test criteria for
the 45° Bunsen burner test.
It is used for evaluation of non-metallic materials or constructions used in the interiors of aerospace
vehicles but also may be used in other applications as specified in applicable procurement and regulatory
documents.
This standard should be used to measure and describe the properties of non-metallic materials, products
or assemblies in response to heat and flame under controlled laboratory conditions and should not be
used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual
fire conditions. However, results of this test may be used as elements of a fire risk assessment which takes
into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end
use.
2 Normative references
The fol
...