Following the success of the first webinar session on the Guide in 2024, UNIDO hosted a second session focused on the relevance of Technical Specification 19870:2023 to the global hydrogen market. The discussion also covered how the UNIDO-ISO Guide, dedicated to this specification, can help harmonize GHG accounting, as well as upcoming hydrogen-related developments planned by ISO.

 

ISO/TS 19870:2023 is a comprehensive methodology for determining greenhouse gas emissions across the hydrogen value chain, from raw material extraction to the consumption gate. Developed through broad international consensus, it is designed to harmonize and streamline the partial carbon footprint calculation (the GHG emissions of specific segments of the supply chain) for various technology pathways in the hydrogen value chain.

 

UNIDO and International Organization for Standardization (ISO) have developed the Guide to ISO/TS 19870:2023 to make this methodology more accessible to practitioners, industry professionals, and government stakeholders. By promoting the use of ISO/TS 19870:2023, the guide strengthens ISO/TS 19870:2023 position as the international benchmark for GHG assessment in the hydrogen value chain, encourages adoption by a broader range of stakeholders, and fosters its implementation in diverse economies—ultimately contributing to a more unified global hydrogen market.