What is BS EN 15609 - Installation of LPG propulsion systems about?
BS EN 15609 is a European standard that discusses the installation of LPG propulsion systems for boats, yachts, and other watercraft. BS EN 15609 specifies the installation requirements for LPG propulsion systems on watercraft with hull lengths less than or equal to 24 m, as defined in EN ISO 8666 [11].
BS EN 15609 does not cover appliances with directly attached gas cylinders, such as portable self-contained camping stoves and portable gas lamps.
Who is BS EN 15609 - Installation of LPG propulsion systems for?
BS EN 15609 on installation of LPG propulsion systems is useful for:
- LPG suppliers
- LPG propulsion systems installers
- Personnel involved in the use of LPG propulsion systems on boats, yachts, and other watercraft
- Quality control personnel
Why should you use BS EN 15609 - Installation of LPG propulsion systems?
BS EN 15609 specifies requirements for the installation of equipment for the use of Liquefied Petroleum Gas (LPG) in the propulsion systems of small watercraft. BS EN 15609 calls for the use of substances and procedures that can be injurious to health if adequate precautions are not taken.
BS EN 15609 provides guidance on the environmental aspects to be considered regarding equipment and accessories produced for the LPG industry and the following is addressed:
- Design
- Manufacture
- Packaging
- Use and operation
- Disposal
BS EN 15609 helps to ensure trust in the reliability of the LPG propulsion systems for boats, yachts, and other watercraft by demonstrating their safety and effectiveness, and ultimately the protection of the people who use them.
Overall, BS EN 15609 provides guidance and requirements for the installation of LPG propulsion systems for boats, yachts, and other watercraft which will ease the installation process which will eliminate any possibility of failure or error, and make them efficient, reliable.
What’s changed since the last update?
BS EN 15609:2021 supersedes BS EN 15609:2012, which is withdrawn.
BS EN 15609:2021 includes some technical changes with respect to BS EN 15609:2012.
These include:
- Addition of fusible plug requirements
- Addition of requirements for Outboard engines
- Addition of LPG generator sets
- Addition of Informative Annex G - Types of LPG propulsion systems
- Addition of requirements for Fixed container - liquid phase for liquid LPG injection fuel system
- Addition of new definitions
- Updated text to paragraphs 4.2.3
- Removal of Environmental annex, references now made to CEN/TS 16765 [2]

