Division 2.2.1 Explosive atmospheres caused by gases, vapours or mists United Kingdom Original text. Later amendments are not shown. 2.2.1.1Division 2.2.1.1 2.2.1.2Division 2.2.1.2 2.2.1.3Division 2.2.1.3 ← Division 2.2 Division 2.2.1 Division 2.2.1.1 →