ISO 10239-2025 PDF

Full title and description

ISO 10239:2025 — Small craft — Liquefied petroleum gas (LPG) systems. International Standard published by the International Organization for Standardization (ISO); available in English and French and provided in PDF/ePub and paper formats.

Abstract

This standard specifies requirements for the installation of permanently installed liquefied petroleum gas (LPG) systems and LPG-burning appliances on small craft. It is applicable to portable cooking appliances with internal LPG cartridges up to 225 g, and to the storage of LPG cylinders. It does not cover LPG-fuelled propulsion engines or LPG-driven generators and does not contain commissioning or maintenance procedures.

General information

• Status: Published
• Publication date: 19 February 2025
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 47.080 (Small craft)
• Edition / version: Edition 4 (2025)
• Number of pages: 24

Key bibliographic and lifecycle details above are taken from the official ISO record for ISO 10239:2025.

Scope

ISO 10239:2025 applies to small craft and specifies safety and installation requirements for permanently installed LPG systems and LPG-burning appliances (excluding LPG-fuelled propulsion engines and LPG-driven generators). It covers piping, fittings and storage on small craft and includes provisions for portable cooking appliances with internal cartridges of capacity 225 g or less; national regulations may additionally apply to LPG cylinder technical requirements.

Key topics and requirements

• Requirements for installation of permanently installed LPG systems on small craft (layout, mounting, routing).
• Storage and secure stowage of LPG cylinders on board.
• Requirements for appliances and connections, including allowable portable cooking appliances (internal cartridges ≤225 g).
• Ventilation, leak prevention and protective measures for gas-containing spaces.
• Pressure regulation, fittings, materials and compatibility requirements.
• Labeling, marking and documentation requirements for installed systems.
• Exclusions and limitations — notably excludes LPG-fuelled propulsion engines and generators; does not provide commissioning or maintenance procedures.

Typical use and users

This standard is used by small craft designers and builders, marine equipment manufacturers, marine gas-system installers, classification societies, surveyors, flag-state inspectors, boating safety authorities and technical regulators. It is referenced when designing, installing or inspecting LPG systems on recreational and small commercial vessels up to the size and types covered by the standard.

Related standards

ISO 10239:2025 revises and replaces the previous edition ISO 10239:2014. It is developed under ISO/TC 188 and is related to other marine and gas installation guidance and national regulations that govern LPG cylinders and gas systems on craft.

Keywords

ISO 10239, LPG, liquefied petroleum gas, small craft, marine gas systems, vessel gas installation, cylinder storage, gas appliance, marine safety, ISO/TC 188

FAQ

Q: What is this standard?

A: ISO 10239:2025 is an international standard that specifies requirements for the installation of permanently installed LPG systems and LPG-burning appliances on small craft.

Q: What does it cover?

A: It covers installation requirements, storage of LPG cylinders, applicability to certain portable cooking appliances (internal cartridges ≤225 g) and related safety measures; it does not cover LPG-fuelled propulsion engines or generators nor commissioning/maintenance procedures.

Q: Who typically uses it?

A: Boat designers and builders, marine equipment manufacturers, installers, surveyors, classification societies, and regulatory or flag-state authorities involved in marine safety and gas installations.

Q: Is it current or superseded?

A: ISO 10239:2025 is the current published edition (published 19 February 2025) and supersedes ISO 10239:2014.

Q: Is it part of a series?

A: It sits within ISO/TC 188 work on LPG systems and standards related to small craft (ICS 47.080) and is part of the ISO family of marine and gas safety standards; related national/adopted versions (EN, BS, DIN, etc.) may exist that endorse or transpose the ISO text.

Q: What are the key keywords?

A: LPG, liquefied petroleum gas, small craft, marine gas systems, cylinder storage, gas appliance installation, ventilation, safety, ISO 10239:2025.