SIST EN 13856:2026

LPG equipment and accessories - Minimum requirements for the content of the user manual for automotive LPG systems

This document specifies the minimum requirements for the contents of the user manual for Automotive LPG propulsion systems fitted in road vehicles.
This document does not cover the user manual for forklift trucks or other industrial machinery.

Flüssiggas-Geräte und Ausrüstungsteile - Mindestanforderungen an den Inhalt von Betriebsanleitungen für Autogasanlagen

Dieses Dokument legt die Mindestanforderungen an den Inhalt der Betriebsanleitung für Autogasanlagen fest, die in Straßenfahrzeugen verbaut sind.
Dieses Dokument behandelt nicht die Betriebsanleitung für Gabelstapler oder andere Industriemaschinen.

Équipements pour GPL et leurs accessoires - Exigences d’utilisation pour les systèmes GPL pour automobiles

Le présent document spécifie les exigences minimales que doit contenir le manuel utilisateur des systèmes GPL pour automobiles.
Le présent document ne couvre pas le manuel utilisateur pour les chariots élévateurs ou autres engins industriels.

Oprema in pribor za utekočinjeni naftni plin (UNP) - Minimalne zahteve za vsebino navodila za uporabo UNP v sistemih za pogon motornih vozil

General Information

• Status: Not Published
• Public Enquiry End Date: 02-Jan-2025
• ICS: 43.060.40 - Fuel systems
• ICS: 75.160.30 - Gaseous fuels
• Technical Committee: TLP - Pressure vessels
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 04-Jun-2026
• Due Date: 09-Aug-2026
• Ref Project: EN 13856:2026 - LPG equipment and accessories - Minimum requirements for the content of the user manual for automotive LPG systems

Relations

• Revises: SIST EN 13856:2002 - Minimum requirements for the content of the user manual for automotive LPG systems
• Effective Date: 01-Dec-2024

Overview

SIST EN 13856:2026 specifies the minimum requirements for the content of user manuals for automotive LPG systems installed in road vehicles. Developed by the Slovenian Institute for Standardization (SIST) and CEN/TC 286, this standard ensures that automotive LPG user manuals are comprehensive, ensuring safe and correct operation by vehicle users. Importantly, SIST EN 13856:2026 does not apply to user manuals for forklift trucks or other industrial machinery, focusing exclusively on road vehicles.

This standard supports enhanced safety and compliance across European markets by providing clear guidelines for manufacturers and installers of LPG equipment and accessories. Properly written user manuals, as mandated by SIST EN 13856:2026, promote user awareness of the system’s technical specifications, operational procedures, and safety protocols.

Keywords: LPG systems, automotive LPG, user manual requirements, road vehicle safety, LPG system documentation

Key Topics

The main topics addressed in SIST EN 13856:2026 include:

• Technical specifications: Clear description of the LPG system and its main components, fuel properties, as well as guidance on running in and tuning procedures.
• Safety instructions: Comprehensive information for safe system use, dangers of misuse, procedures for addressing gas leaks, effects of environmental conditions, the critical 80% maximum filling level, and relevant national regulations for parking, maintenance, and re-approval.
• Operation of the LPG system: Directions for filling the LPG container, procedures for switching fuel types, operation of manual valves, and proper use of level indicators with focus on safety limits.
• Maintenance: Required maintenance frequencies and types, with an emphasis on work to be performed by competent personnel. Special procedures, such as those required during vehicle repainting, are outlined.
• Defects and repair: Steps to address faults and perform repairs, including guidance on the use of diagnostic systems when present.

Applications

SIST EN 13856:2026 is especially relevant for:

• LPG System Manufacturers: Ensuring their automotive LPG hardware is accompanied by compliant user manuals, as required for European market access.
• Automotive Installers: Assisting professionals in installing and commissioning LPG systems in road vehicles according to strict user communication standards.
• Vehicle Fleet Operators: Increasing operational safety and reliability of LPG-powered fleets by distributing standardized, easy-to-understand user manuals to drivers.
• Regulatory Authorities: Facilitating inspection and approval processes for automotive LPG systems by promoting harmonized documentation requirements.
• End Users/Vehicle Owners: Ensuring that drivers and vehicle owners have clear, reliable information on the safe and efficient use of LPG-powered vehicles.

Related Standards

For comprehensive safety and environmental compliance, the following standards are closely associated with SIST EN 13856:2026:

• CEN/TS 16765: LPG equipment and accessories - Environmental considerations for CEN/TC 286 standards
• prEN 12805: Automotive liquefied petroleum gas components - Containers
• EN 12806: Automotive liquefied petroleum gas components - Other than containers
• EN 16652-2: LPG equipment and accessories - Automotive LPG vehicles workshops - Part 2: Personnel competence and training

These referenced standards support SIST EN 13856:2026 by detailing component requirements, environmental safeguards, and maintenance personnel qualifications, ensuring all aspects of LPG automotive system safety and usability.

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By adhering to SIST EN 13856:2026, manufacturers, installers, and users help ensure the safe, efficient, and compliant use of LPG systems in road vehicles, contributing to both user safety and environmental responsibility.

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 13856:2024
01-december-2024
Oprema in pribor za utekočinjeni naftni plin (UNP) - Minimalne zahteve za vsebino
navodila za uporabo UNP v sistemih za pogon motornih vozil
LPG equipment and accessories - Minimum requirements for the content of the user
manual for automotive LPG systems
Anforderungen an den Inhalt von Betriebsanleitungen für Autogasanlagen
Contraintes d'utilisation pour les systèmes GPL pour automobiles
Ta slovenski standard je istoveten z: prEN 13856
ICS:
43.060.40 Sistemi za gorivo Fuel systems
75.160.30 Plinska goriva Gaseous fuels
oSIST prEN 13856:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 13856:2024
oSIST prEN 13856:2024
DRAFT
EUROPEAN STANDARD
prEN 13856
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2024
ICS 43.060.40; 75.160.30 Will supersede EN 13856:2002
English Version
LPG equipment and accessories - Minimum requirements
for the content of the user manual for automotive LPG
systems
Contraintes d'utilisation pour les systèmes GPL pour Anforderungen an den Inhalt von Betriebsanleitungen
automobiles für Autogasanlagen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 286.
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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13856:2024 E
worldwide for CEN national Members.

oSIST prEN 13856:2024
prEN 13856:2024 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General. 5
5 Contents of the user manual . 5
5.1 Technical specifications . 5
5.2 Safety instructions . 6
5.3 Operation of the LPG system . 6
5.3.1 Filling of the LPG container . 6
5.3.2 Switch-over procedure . 6
5.3.3 Opening / closing of manual valves when fitted . 6
5.3.4 Level indicator . 6
5.4 Maintenance . 6
5.5 Defects and repair . 6
Bibliography .
...