Recommendation on test gases and guide for H2NG assessment of gas appliance standards for the concerned CEN/TC’s

Recommendation on test gases and defining reference and limit gases based on current approach regarding limit gases except if CENTC238 would decide otherwise in its WG1 meeting in Sept 2022Guide for H2NG assessment of gas appliance standards for the concerned CENTCs based on the essential requirements of the Gas Appliances Regulation EU 2016426 the requirements of gas appliance standards for construction operation and marking instructions the results and findings from THyGA WP3 testing the conclusions of existing WP2 and WP4 deliverables the exchanges with relevant stakeholders incl CEN TCs and NBGA