EN 16522:2014

• Abstract:

  This European Standard defines the minimum requirements for flame arresters fitted to tanks for the transport of dangerous goods.; This European Standard specifies the type of flame arrestor to be used for breather devices as part of the service equipment of fixed tanks and demountable tanks for the transport of liquid petroleum products. The equipment specified by this European Standard is suitable for use with liquid petroleum products and other dangerous substances of Class 3 of ADR which have a vapour pressure not exceeding 110 kPa at 50 °C and petrol, and which have no subclassification as toxic or corrosive. It also specifies the tests necessary to verify the compliance of the equipment with this European Standard.; Emergency pressure relief valves in accordance with EN 14596 are excluded from the requirements of this European Standard.

• Status: Published
• Publication Date: 29-Apr-2014
• Withdrawal Date: 30-Oct-2014
• ICS: 13.300 - Protection against dangerous goods
• ICS: 23.020.20 - Vessels and containers mounted on vehicles
• ICS: 23.060.40 - Pressure regulators
• Technical Committee: CEN/TC 296 - Tanks for transport of dangerous goods
• Drafting Committee: CEN/TC 296/WG 7 - Service equipment (including equipment for vapour recovery, bottom loading, the confinement and handling of petroleum products)
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 04-Jun-2024
• Completion Date: 17-Sep-2026
• Directive: Not Harmonized2008/68/EC - Directive 2008/68/EC of the European Parliament and of the council of 24 September 2008 on the inland transport of the dangerous goods
• Mandate: M/086 - Mandate to CEN for standardization in the field of transport of dangerous goods
• Ref Project: SIST EN 16522:2014 - Tanks for transport of dangerous goods - Service equipment for tanks - Flame arresters for venting systems

• Refers: EN ISO 16852:2010 - Flame arresters - Performance requirements, test methods and limits for use (ISO 16852:2008, including Cor 1:2008 and Cor 2:2009)
• Effective Date: 28-Jan-2026
• Referred By: EN 12312-5:2021+A1:2025 - Aircraft ground support equipment - Specific requirements - Part 5: Aircraft fuelling equipment
• Effective Date: 28-Jan-2026
• Referred By: EN ISO 2615:2024 - Analysis of natural gas - Biomethane - Determination of the content of compressor oil (ISO 2615:2024)
• Effective Date: 28-Jan-2026
• Referred By: EN ISO 23306:2020 - Specification of liquefied natural gas as a fuel for marine applications (ISO 23306:2020)
• Effective Date: 28-Jan-2026
• Referred By: EN 12312-5:2021 - Aircraft ground support equipment - Specific requirements - Part 5: Aircraft fuelling equipment
• Effective Date: 28-Jan-2026

Overview

EN 16522:2014 - "Tanks for transport of dangerous goods - Service equipment for tanks - Flame arresters for breather devices" is a CEN European Standard that defines the minimum requirements and test criteria for flame arresters fitted to tanks used in the transport of liquid petroleum products and other ADR Class 3 substances. It applies where vapour pressure does not exceed 110 kPa at 50 °C and to petrol, provided the substance has no toxic or corrosive subclassification. Emergency pressure relief valves covered by EN 14596 are explicitly excluded.

Key topics and requirements

• Function: The flame arrester must prevent immediate passage of flame into the tank shell, meeting ADR safety intent.
• Types and testing: Specifies flame arrester types for different installations:
  • End-of-line deflagration (direct communication with atmosphere) - testing per EN ISO 16852 clause for deflagration.
  • Detonation (DET3) for connection to pipework - testing per EN ISO 16852 clauses for stable detonation and restricted systems.
• Standards referenced: Core test methods and performance limits align with EN ISO 16852:2010. Materials of construction are required to comply with the referenced material specification provisions (manufacturer must provide full material details).
• Marking and documentation: Mandatory markings (or accompanying certificate when size prohibits marking) include reference to EN 16522, manufacturer name/type, serial/date, protected side (if directional), type identifier (“DEF” or “DET3”), burn rating (“BCc”), operational temperature T0, and maximum operational pressure p0, plus warnings about application limits.
• Materials and sustainability: Materials must be suitable for the substances in scope; manufacturers are encouraged to use recyclable and sustainable materials where possible.

Practical applications and users

EN 16522 is intended for:

• Tank manufacturers and component suppliers designing breather devices and flame arresters for fixed and demountable road tanks
• Transport operators and fleet managers ensuring service equipment complies with ADR and European requirements
• Certification bodies and notified bodies conducting conformity testing and type approval
• Inspectors and maintenance personnel verifying correct installation, marking, and operational limits Use cases include venting and breather systems on fuel tankers, storage tanks mounted on vehicles, and pipeline interfaces where flame propagation risk exists.

Related standards

• EN ISO 16852:2010 - flame arrester performance and test methods (normative reference)
• EN 14595 - Pressure and Vacuum Breather Vent
• EN 14596 - Emergency pressure relief valve (excluded from EN 16522 requirements)
• Other tank service equipment standards in the EN 13xxx and EN 14xxx series for integrated compliance with ADR

Keywords: EN 16522, flame arresters, breather devices, tanks for transport of dangerous goods, Class 3, petrol, EN ISO 16852, ADR compliance, marking, burn rating.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Tanks für die Beförderung gefährlicher Güter - Bedienungsausrüstung von Tanks - Flammensperren für BelüftungssystemeCiternes de transport de matières dangereuses - Équipement de service pour citernes - Arrête-flammes pour systèmes de ventilationTanks for transport of dangerous goods - Service equipment for tanks - Flame arresters for venting systems23.020.20Posode in vsebniki, montirani na vozilaVessels and containers mounted on vehicles13.300Varstvo pred nevarnimi izdelkiProtection against dangerous goodsICS:Ta slovenski standard je istoveten z:EN 16522:2014SIST EN 16522:2014en,fr,de01-julij-2014SIST EN 16522:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16522
April 2014 ICS 13.300; 23.020.20; 23.060.40 English Version
Tanks for transport of dangerous goods - Service equipment for tanks - Flame arresters for breather devices
Citernes de transport de matières dangereuses - Équipement de service pour citernes - Arrête-flammes pour dispositifs d'aération
Tanks für die Beförderung gefährlicher Güter - Bedienungsausrüstung von Tanks - Flammensperren für Belüftungssysteme This European Standard was approved by CEN on 20 March 2014.
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
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16522:2014 ESIST EN 16522:2014
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