Regulation of hydrogen quality for road transport

At the international level, there is an ISO standard - ISO 14687 Hydrogen fuel quality — Product specification. This standard sets quality specifications for several hydrogen grades, as indicated in the table below. This is the same standard that EU Directive 2014/94/EU of the European Parliament and of the Council of October 22, 2014 on the deployment of alternative fuels infrastructure referred to for the purity of hydrogen dispensed by hydrogen refueling points. The Directive was approved in 2014.

In accordance with ISO 14687, in recent years, PEM fuel cell technologies have shown considerable progress, such as the lowering of platinum (Pt)‑loading, thinned electrolyte membrane, operation with high current density and operation under low