ISO 16924:2016

Overview - ISO 16924:2016 (ISO 16924:2016)

ISO 16924:2016 (identical to ISO 16924:2016) is the international standard for natural gas fuelling stations that use liquefied natural gas (LNG) to fuel vehicles. It specifies requirements for the design, construction, operation, maintenance and inspection of LNG fuelling stations and of LCNG fuelling stations (where LNG is used onsite to produce compressed natural gas). The standard covers equipment, safety and control devices from the LNG storage tank filling connection up to the vehicle fuelling nozzle (the tank filling connection itself and the vehicle nozzle are excluded). It applies to LNG and other liquefied methane‑rich gases that comply with local gas composition regulations or the gas quality requirements of ISO 13686.

Key Topics and Technical Requirements

ISO 16924 organizes technical content around safe, operational and environmental aspects of LNG fuelling stations. Major topics include:

• Risk management: hazard and risk assessment, protection against overpressure and static electricity.
• Fire and explosion protection: hazardous area classification, ignition source control and fire‑fighting arrangements.
• General design requirements: design philosophy, buildings and civil works, installation and construction practices.
• Site layout and security: separation distances, traffic management, access (private/public), and security measures.
• Fuel supply systems: requirements for filling connectors, prevention of overfilling and backflow, bleed and drain connections, and LNG tanker interfaces.
• Storage: LNG storage tank design, safety requirements and installation guidance for fixed and mobile storage.
• Pumps, compressors and dispensers: selection, installation and safety for centrifugal/reciprocating pumps, dispensers, hoses, breakaway systems and metering.
• Vaporizers and heaters: vaporization options (ambient air, electric, water bath, fired) and design considerations.
• Odorization, instrumentation and control: monitoring, alarms and station control systems.
• Maintenance and inspection: operational checks, inspection intervals and documentation.

Practical Applications & Who Uses ISO 16924

This standard is used by professionals involved in the lifecycle of LNG and LCNG vehicle fuelling infrastructure:

• Station designers and engineering consultancies
• Equipment manufacturers (pumps, dispensers, vaporizers)
• Fuel station operators and fleet owners (public, private, mobile/movable)
• Safety and compliance managers, inspectors and regulators
• Contractors for construction, commissioning and maintenance

ISO 16924 helps ensure safe, compliant LNG refuelling stations that support fleet electrification alternatives, heavy vehicle decarbonization and multi‑fuel station deployments.

Related Standards

• ISO 16923 - specific requirements for CNG fuelling equipment (referenced for CNG components)
• ISO 13686 - gas quality requirements for LNG and methane‑rich gases
• Local regulations and petroleum/fuel handling codes (as applicable)

Keywords: LNG stations, natural gas fuelling stations, LCNG fuelling stations, LNG storage, LNG dispensers, vaporizers, LNG pumps, fuelling station safety, ISO 16924.