ISO/TS 16111:2006 defines the requirements applicable to the safe design and use of transportable hydrogen gas storage canisters, including all necessary shut-off valve, pressure-relief devices (PRD), and appurtenances, intended for use with reversible metal hydride hydrogen storage systems. ISO/TS 16111:2006 only applies to refillable storage canisters where hydrogen is the only transferred media. Storage canisters intended to be used as fixed fuel storage onboard hydrogen fuelled vehicles are excluded.