This part of ISO 8835 specifies requirements for transfer and receiving systems of active anaesthetic gas scavenging systems (active AGSSs) intended to reduce exposure of healthcare personnel to anaesthetic gases and vapours while providing patient protection (e.g. against excessive flow and pressure). This part of ISO 8835 also specifies requirements for transfer and receiving systems of active anaesthetic gas scavenging systems in which the power device is integral with the transfer and receiving system. This part of ISO 8835 does not specify requirements for - disposal systems which are covered by ISO 7396-2, - non-active AGSSs (passive AGSSs), - proximity gas extraction systems (i.e. systems not directly connected to the breathing system or associated equipment), - transfer and receiving systems intended for use with flammable anaesthetic as determined by Annex DD of IEC 60601-2-13:2003.