oSIST prEN 1621-4:2025
(Main)Motorcyclists' protective clothing against mechanical impact - Part 4: Motorcyclists' inflatable protectors - Requirements and test methods
Motorcyclists' protective clothing against mechanical impact - Part 4: Motorcyclists' inflatable protectors - Requirements and test methods
This document covers requirements and test methods for mechanically activated inflatable protectors for motorcycle riders (in the following text called inflatable protector). It specifies the minimum level of protection, the minimum intervention time for the airbag system and the minimum coverage body zone to be protected by motorcyclists' inflatable protector worn by riders. The requirements of this document are applicable to various design of inflatable protectors and refer to all body areas and their combinations, which are claimed to be protected. Requirement of this document are applicable to airbag system, to the specific hosting garment (or textile restrain system) and to the mechanical triggering system.
This document contains the requirements for assessing the performance of airbag system, specific hosting garment (or textile restraint system), and mechanical triggering system during an accident and details of the test methods, requirements sizing, ergonomics, innocuousness, labelling and the provision of information.
This document is not applicable to pre inflated protector. Inflatable protectors other than mechanically activated are not covered by this document.
Motorradfahrer-Schutzkleidung gegen mechanische Belastung - Teil 4: Aufblasbare Protektoren für Motorradfahrer - Anforderungen und Prüfverfahren
Dieses Dokument legt Anforderungen und Prüfverfahren für mechanisch aktivierte aufblasbare Protektoren (im folgenden Text aufblasbare Protektoren genannt) für Motorradfahrer fest. Es legt den Mindestschutzgrad, die Mindestinterventionszeit des Airbagsystems und den mindestens zu schützenden Körperbereich von den von Motorradfahrern getragenen aufblasbaren Protektoren für Motorradfahrer fest. Die Anforderungen dieses Dokumentes sind auf verschiedenartige Ausführungen aufblasbarer Protektoren anwendbar und beziehen sich auf sämtliche Körperbereiche und deren Kombination, die sie schützen sollen. Die Anforderungen dieses Dokuments sind auf ein Airbagsystem, das spezielle Aufnahmekleidungsstück (oder textile Rückhaltesystem) und die mechanische Auslöseeinheit anwendbar.
Dieses Dokument enthält die Anforderungen an die Beurteilung der Leistungsfähigkeit des Airbagsystems, des speziellen Aufnahmekleidungsstücks (oder textilen Rückhaltesystems) und der mechanischen Auslöseeinheit bei einem Unfall sowie Einzelheiten zu den Prüfverfahren, Anforderungen an die Größenbestimmung, Ergonomie, Unschädlichkeit, Etikettierung und Bereitstellung von Informationen.
Dieses Dokument ist nicht anwendbar auf voraufgeblasene Protektoren. Aufblasbare Protektoren, die nicht mechanisch aktiviert werden, werden in diesem Dokument nicht behandelt.
Vêtements de protection contre les chocs mécaniques pour motocyclistes - Partie 4 : Protecteurs gonflables pour motocyclistes - Exigences et méthodes d'essai
Le présent document concerne les exigences et les méthodes d'essai relatives aux protecteurs gonflables à déclenchement mécanique (appelés « protecteurs gonflables » dans le texte qui suit) pour conducteurs de motocycles. Il spécifie le niveau minimal de protection, le temps de déploiement minimal du système de coussin gonflable et l'étendue minimale de la zone du corps devant être protégée par le protecteur gonflable pour motocyclistes porté par les conducteurs. Les exigences du présent document sont applicables à différentes conceptions de protecteurs gonflables, et concernent toutes les zones du corps et leurs combinaisons censées être protégées. Les exigences du présent document sont applicables au système de coussin gonflable, au vêtement hôte spécifique (ou dispositif de retenue textile) et au système de déclenchement mécanique.
Le présent document contient les exigences relatives à l'évaluation de la performance du système de coussin gonflable, du vêtement hôte spécifique (ou dispositif de retenue textile) et du système de déclenchement mécanique pendant un accident, ainsi que les détails des méthodes d'essai, des exigences relatives au dimensionnement, à l'ergonomie, à l'innocuité, à l'étiquetage et à la fourniture d'informations.
Le présent document ne s'applique pas aux protecteurs pré-gonflés. Les protecteurs gonflables sans déclenchement mécanique ne sont pas traités dans le présent document.
Varovalne obleke za zaščito motoristov pred mehanskimi vplivi - 4. del: Napihljive zaščitne blazine za motoriste (airbagi) - Zahteve in preskusne metode
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2025
Varovalne obleke za zaščito motoristov pred mehanskimi vplivi - 4. del: Napihljive
zaščitne blazine za motoriste (airbagi) - Zahteve in preskusne metode
Motorcyclists' protective clothing against mechanical impact - Part 4: Motorcyclists'
inflatable protectors - Requirements and test methods
Motorradfahrer-Schutzkleidung gegen mechanische Belastung - Teil 4: Aufblasbare
Protektoren für Motorradfahrer - Anforderungen und Prüfverfahren
Vêtements de protection contre les chocs mécaniques pour motocyclistes - Partie 4 :
Protecteurs gonflables pour motocyclistes - Exigences et méthodes d'essai
Ta slovenski standard je istoveten z: prEN 1621-4
ICS:
13.340.10 Varovalna obleka Protective clothing
43.140 Motorna kolesa in mopedi Motorcycles and mopeds
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2025
ICS 13.340.10 Will supersede EN 1621-4:2013
English Version
Motorcyclists' protective clothing against mechanical
impact - Part 4: Motorcyclists' inflatable protectors -
Requirements and test methods
Vêtements de protection contre les chocs mécaniques Motorradfahrer-Schutzkleidung gegen mechanische
pour motocyclistes - Partie 4 : Protecteurs gonflables Belastung - Teil 4: Aufblasbare Protektoren für
pour motocyclistes - Exigences et méthodes d'essai Motorradfahrer - Anforderungen und Prüfverfahren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 162.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1621-4:2025 E
worldwide for CEN national Members.
FprEN 1621-4:2012 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Requirements . 8
4.1 General . 8
4.2 Innocuousness . 9
4.2.1 Colour . 9
4.2.2 Hard components . 9
4.2.3 Temperature exposure evaluation . 10
4.3 Zones of protection . 10
4.4 Intervention time . 10
4.5 Duration time . 10
4.6 Retention of the inflatable protector . 10
4.7 Impact attenuation . 11
4.8 Sizing and size marking . 11
4.9 Ergonomic requirements . 11
4.10 Trigger system function . 11
4.10.1 Activation force . 11
4.10.2 Activation energy . 11
4.10.3 Connection of airbag system to motorcycle . 11
5 Sampling . 11
6 Test methods . 12
6.1 Preconditioning and testing atmosphere . 12
6.2 Innocuousness . 12
6.2.1 Colour fastness to water . 12
6.2.2 Protection from hard components . 12
6.2.3 Temperature exposure evaluation (applicable only for pyrotechnic hot gas generators) 12
6.3 Measurement and marking of zones of protection . 12
6.4 Intervention time . 12
6.4.1 General . 12
6.4.2 Determination of the activation time . 12
6.4.3 Determination of the inflation time . 14
6.5 Impact attenuation . 18
6.6 Ergonomic tests . 19
6.6.1 General . 19
6.6.2 Tests . 19
6.7 Evaluation of the function of the mechanism of activation . 20
6.7.1 Evaluation of activation force . 20
6.7.2 Evaluation of the activation energy . 20
6.7.3 Connection to the motorcycle . 20
FprEN 1621-4:2012 (E)
6.8 Uncertainty . 20
7 Test results . 20
8 Test report . 21
9 Marking . 21
10 Information supplied by the manufacturer . 22
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Regulation (EU) 2016/425 aimed to be covered . 24
FprEN 1621-4:2012 (E)
European foreword
This document (prEN 1621-4:2025) has been prepared by Technical Committee CEN/TC 162 “Protective
clothing including hand and arm protection and lifejackets”, the secretariat of which is held by DIN
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1621-4:2013.
The main changes compared with EN 1621-4:2013 are as follows:
— inflation time test of the airbag system changed from visual video inspection method to internal pressure
inspection method;
— clarification that motorcycle airbag protector is an independent garment;
— clarification of the function of the airbag system as pure airbag or in combination with rigid protectors;
— manufacturer's statement to distinguish when the airbag protector can be worn inside or outside another
garment;
— improved descriptions of the test procedure.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its Member
States.
For the relationship with EU Legislation, see informative Annex ZA, which is an integral part of this document.
EN 1621 consists of the following parts, under the general title “Motorcyclists’ protective clothing against
mechanical impact “:
— Part 1: Motorcyclists' limb joint impact protectors — Requirements and test methods
— Part 2: Motorcyclists' back protectors — Requirements and test methods
— Part 3: Motorcyclists' chest protectors — Requirements and test methods
— Part 4: Motorcyclists’ mechanically activated inflatable protectors — Requirements and test methods
FprEN 1621-4:2012 (E)
Introduction
Motorcyclists' inflatable protectors are garments (or pieces of garment with independent textile restraint
system) worn by the Motorcyclist which aim to reduce the severity of injuries in case of motorcycle accidents.
Motorcyclists typically wear additional over-garments (e.g. jackets, raincoat, and leather suit) and they use
inflatable protectors over or under such additional over-garment. Indications on how to wear the inflatable
protector over or under the additional over-garment are provided by the manufacturer.
Motorcyclists' inflatable protectors are garments made by three main components: an “airbag system”, a
“specific hosting garment” which hosts the airbag system (or independent textile restrain system) and a
“mechanical triggering system” which detects accident situations. The “specific hosting garment” could be a
specific textile system or it could include belts, zippers and buckles. In any case, the Motorcyclists' inflatable
protectors have to be intended as a complete garment to be worn.
The inflatable protectors covered by this document give protection only when inflated.
The performance requirements have been selected to provide the best practical compromise between
protection, comfort, and ergonomic requirements. Protectors that are too stiff or heavy are not worn. The test
methods are designed to provide information on protection against mechanical impacts. The force levels in the
tests do not relate directly to the forces riders are exposed to in accidents, but experiences have shown that
products meeting the requirements of this European Standard may reduce the severity o
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