Small craft. Liquefied petroleum gas (LPG) systems
1Key Takeaways
This international standard specifies requirements for stationary liquefied petroleum gas (LPG) systems and combustion installations installed on small boats (up to 24 m in length). It does not include equipment for LPG propulsion engines or generators, and cooking appliances with internal LPG carriers not exceeding 22…
2Expert Interpretation
Comprehensive guide to BS EN ISO 10239:2017 standards for LPG systems in vessels up to 24m. Covers cylinder storage, pressure regulation, ventilation requirements, and safety testing procedures for marine propane/butane installations.
Scope and Application
This standard specifies requirements for permanently installed LPG systems on small craft ≤24m, excluding propulsion engines. Key applications include:
- Cooking appliances with ≤225g integral cartridges (see Annex D)
- Vapour withdrawal systems only (-30°C to +60°C operational range)
- Multi-system installations requiring physical separation
Technical Requirements Comparison
| Component | 2014 Edition | 2017 Changes |
|---|---|---|
| Hose Material | General marine suitability | Specific material requirements added |
| Leak Testing | Basic provisions | Enhanced user/manufacturer procedures |
| Owner's Manual | General guidance | Detailed content specifications (Annex C) |
Critical Safety Provisions
Cylinder Storage
Mandatory requirements for cylinder lockers/housings:
- Ventilated enclosures with ≥19mm drains 75mm above waterline
- Vapour-tight separation from interior spaces
- 500mm clearance from hull openings
Pressure Regulation
Devices must include:
- Overpressure protection (≤15kPa)
- Fixed output pressure (≤5kPa)
- Corrosion-resistant construction
Installation Best Practices
Key considerations for LPG supply lines:
| Material | Specification | Clearance Requirements |
|---|---|---|
| Copper piping | ≥0.6mm wall thickness | 100mm from electrical terminals |
| Stainless steel PCT | EN 15266 compliant | 300mm from exhaust components |
| Flexible hoses | Permanently attached fittings | No engine compartment routing |
Ventilation Calculations
Minimum effective area formula for accommodation spaces:
A ≥ 2,200U + 650P
Where:
A = vent area (mm²)
U = appliance input (kW)
P = occupant count
Note: Louvers reduce effective area by ~50%
Implementation Checklist
- Verify cylinder locker drainage meets §8.3 requirements
- Install pressure gauge/bubble tester per §4.5
- Conform to Annex B ventilation calculations
- Include all mandatory warnings in owner's manual
- Schedule annual inspections per hose §C.1