Standard Of The Week
IS 16061:2021/ISO14687:2019 Hydrogen Fuel Quality — Product Specification ( First Revision )
This Indian Standard is identical with ISO 14687 : 2019 ‘Hydrogen fuel quality — Product specification’ and specifies the minimum quality characteristics of hydrogen fuel as distributed for utilization in vehicular and stationary applications
This standard is a combination of three former standards for the specifications of hydrogen fuel, ISO 14687-1, ISO 14687-2 and ISO 14687-3, incorporating their revisions at the same time.
In recent years, PEM (proton exchange membrane) fuel cell technologies have shown a remarkable progress such as lowering of platinum (Pt)-loading, thinned electrolyte membrane, operation with high current density and operation under low humidity. With this progress, it has become necessary to reconsider the tolerances of hydrogen impurities for the PEM fuel cells which were previously specified in ISO 14687-2 and ISO 14687-3.
Therefore, this document has been mainly revised based on the research and development of PEM fuel cells focusing on the following items
- PEM fuel cell catalyst and fuel cell tolerance to hydrogen fuel impurities
- effects/mechanisms of impurities on fuel cell power systems and components
- Impurity detection and measurement techniques for laboratory, production and in-field operations
- Fuel cell vehicle demonstration and stationary fuel cell demonstration results
The Grade D and the Grade E of this standard are intended to apply to PEM fuel cells for road vehicles and stationary appliances respectively. These aim to facilitate the provision of hydrogen of reliable quality balanced with acceptable lower cost for the hydrogen fuel supply.
This standard reflects the state of the art at the date of its publication, but since the quality requirements for hydrogen technology applications are developing rapidly, this standard may need to be further revised in the future according to technological progress.