You are here: Latest Issue > Do we need an International Standard on PSAs? Do we need an International Standard on PSAs? Karen Hall, Fuel Cell and Hydrogen Energy Association A New Work Item Proposal (NWIP) for Pressure Swing Adsorption System for Hydrogen Separation & Purification has been proposed for ISO/TC 197 consideration. The member body proposing this work is China. In the NWIP, the proposer recognizes a need to promote the implementation of pressure swing absorption (PSA) as an important purification technical tool for hydrogen purification and recovery, and to promote the harmonization of national specifications and requirements of PSA system for hydrogen production. China set a national standard for PSA systems for hydrogen purification in 2005. Many other countries and regions also have national standards. In addition there are numerous best practices employed by PSA technology providers. There is currently, however, no single set of requirements applied all over the world. In fact, there can be significant differences among the existing standards and best practices. This NWIP to develop an International Standard for PSA systems for hydrogen purification aims to solve the problem and facilitate promotion and implementation of PSA systems for hydrogen purification. In order to inform the FCHEA vote on this New Work Item Proposal, FCHEA members are encouraged to contact Karen Hall at khall@fchea.org to express your views. Would an International Standard for Pressure Swing Adsorption System for Hydrogen Separation & Purification be useful to PSA technology providers and users? Please let us know your thoughts by February 15th in order to allow FCHEA to take a position. If you would like additional information about this NWIP, please let know and I'll be happy to provide further details. In the event this NWIP is approved by ISO, PSA technology providers, users, and other interested parties will be sought for a new working group to develop the International Standard.