ISO/DIS 25009

Unmanned aircraft systems — General requirements and test methods for the hydrogen fuel gas pipes of gaseous hydrogen fuel cell powered UAS

Current stage: 40.99 Full report circulated: DIS approved for registration as FDIS Jul 15, 2026

Originator: ISO

Owner: ISO/TC 20/SC 16 Unmanned aircraft systems

Type: International Standard

ICS: 49.050 Aerospace engines and propulsion systems | 27.075 Hydrogen technologies

This document specifies the performance requirements for the fuel gas piping (excluding the stack) for hydrogen UAVs.

IN_DEVELOPMENT
ISO/DIS 25009
40.99 Full report circulated: DIS approved for registration as FDIS
Jul 15, 2026