gas group
as defined in Regulation (EU) 2016/426 of the European Parliament and of the Council of 9…, Article 2, point (10) (Definitions)
a specified range of Wobbe indices within that of the gas family concerned
as defined in Regulation (EU) 2016/426 of the European Parliament and of the Council of 9…, Article 2, point (10) (Definitions)
a specified range of Wobbe indices within that of the gas family concerned