SIST EN 12805:2002

Automotive LPG components - Containers

This standard specifies the requirements for design, manufacturing and testing of welded steel automotive Liquefied Petroleum Gas (LPG) containers, to be permanently attached to a motor vehicle, where the automotive LPG is to used as a fuel in the vehicle.

Bauteile für Autogasanlagen/Treibgasanlagen - Autogastanks

1.1 Diese Norm legt die Anforderungen an geschweißte LPG-Druckgasbehälter aus Stahl mit einem Verhältnis L/D kleiner oder gleich 8 und Spezialbehälter für Fahrzeuge fest. Der maximale Rauminhalt beträgt 200 Liter. 1.2 Behälter für Gasphase-Entnahme: siehe Anhang M. 1.3 Behälter für Gabelstapler: siehe Anhang N.

Composants pour véhicules au GPL - Réservoirs

La présente Norme européenne spécifie les exigences de conception, construction et essais des réservoirs en acier soudés pour véhicules au gaz de pétrole liquéfié (GPL), réservoirs qui doivent être installés de façon permanente sur un véhicule à moteur, lorsque le GPL doit servir de carburant du véhicule.

Naprave in oprema za pogon motornih vozil na utekočinjeni naftni plin (UNP) - Rezervoarji

General Information

• Status: Published
• Publication Date: 31-Oct-2002
• ICS: 23.020.35 - Gas cylinders
• ICS: 43.060.40 - Fuel systems
• Technical Committee: TLP - Pressure vessels
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Nov-2002
• Due Date: 01-Nov-2002
• Completion Date: 01-Nov-2002
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: EN 12805:2002 - Automotive LPG components - Containers

Relations

• Revised: oSIST prEN 12805:2026 - LPG equipment and accessories - Automotive LPG components - Containers
• Effective Date: 01-Feb-2026

Overview

EN 12805:2002 is the CEN European standard that specifies requirements for the design, manufacture and testing of welded steel automotive LPG containers permanently attached to motor vehicles. It covers technical rules for containers used to store Liquefied Petroleum Gas (LPG) as vehicle fuel and supports type approval and conformity of production under European regulatory frameworks.

Keywords: EN 12805:2002, automotive LPG containers, welded steel, LPG tanks, fuel systems, pressure vessels, CEN.

Key Topics

• Scope and definitions
  • Applies to welded steel containers for automotive LPG, including cylindrical and “special” container shapes.
  • Defines terms such as design pressure, working pressure, test pressure and type of containers.
• Materials and construction
  • Requirements for steel selection and heat treatment (including stress relieving).
  • Construction and workmanship requirements including tolerances (out‑of‑roundness, straightness, capacity).
• Design and strength calculations
  • Calculation methods for cylindrical shells, non‑cylindrical containers and container ends to determine required wall thickness and structural integrity.
  • Design temperature and design pressure considerations.
• Welding and inspection
  • Welding qualifications, procedure tests and technical welding requirements.
  • Radiographic and non‑destructive examination of welds; weld repair rules; shift rotating of welds.
• Testing
  • Prototype and production tests: tensile, bend, hardness, burst (hydraulic), hydraulic, fatigue (where calculation is insufficient), bonfire (fire resistance) and radiography.
  • Test specimen location and acceptance criteria.
• Marking and documentation
  • Marking of containers, type approval information and communication forms (including Annexes on type approval and marking).

Applications / Who Uses It

• Container and tank manufacturers designing and fabricating welded steel LPG tanks for vehicles.
• Vehicle OEMs and retrofit companies integrating permanently mounted LPG fuel systems.
• Testing laboratories and certification bodies performing mechanical, hydraulic, radiographic and fire tests for type approval.
• Regulators, safety engineers and compliance officers enforcing vehicle fuel safety, conformity of production and approval schemes.
• Design engineers calculating wall thicknesses, choosing materials and specifying welding procedures.

Related Standards

• EN 589 (Automotive fuels - LPG requirements)
• EN 10120 (Steel sheet and strip for welded gas cylinders)
• EN 1435 / ISO 1106 (Radiographic examination of welds)
• EN 287-1, EN 288-3 (Welding approvals and procedure tests)
• Annex K references UN ECE Regulation 67 regarding type approval

EN 12805:2002 is a practical technical reference for anyone involved in safe, compliant design and production of vehicle-mounted LPG containers, and it should be used alongside relevant EN/ISO and regulatory documents during design, testing and certification.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.5H]HUYRDUMLBauteile für Autogasanlagen/Treibgasanlagen - AutogastanksComposants pour véhicules au GPL - RéservoirsAutomotive LPG components - Containers43.060.40Sistemi za gorivoFuel systems23.020.30MHNOHQNHPressure vessels, gas cylindersICS:Ta slovenski standard je istoveten z:EN 12805:2002SIST EN 12805:2002en01-november-2002SIST EN 12805:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12805May 2002ICS 23.020.30; 43.060.40English versionAutomotive LPG components - ContainersComposants pour véhicules au GPL - RéservoirsBauteile für Autogasanlagen/Treibgasanlagen -AutogastanksThis European Standard was approved by CEN on 1 March 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12805:2002 ESIST EN 12805:2002

Examples of container shapes.22Annex B (informative)
Examples of container ends.23Annex C (normative)
Examples of butt welds.24Annex D (normative)
Examples of welded plates and rings.25Annex E (normative)
Shift rotating of welds.26Annex F (normative)
Tolerance on position of plate or ring.27Annex G (normative)
Location of test specimen.28G.1Location of test specimen from a 2-section container.28G.2Location of test specimen from a 3-section container.29G.3Location of macrosection for valve boss/plate welds.30Annex H (normative)
Test specimen for mechanical tests.31Annex I (normative)
Radiography of welds.32Annex J (normative)
Determination of the shape factor C.33Key35Annex K (informative)
Type approval requirements.36K.1Application for type approval.36K.2Approval according to UN ECE Regulation 67.36K.3Modification of a container type and extension of approval.37K.4Conformity of production.37K.5Production definitely discontinued.37Annex L (informative)
Approval mark and communication form.38L.1Type approval mark.38L.2Example of a communication form.38L.3International country numbers in accordance with UN-ECE regulation 67.41Bibliography.42SIST EN 12805:2002
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