Abstract :
Cases of ignition of anaesthetic vapours have occurred in hospitals which it has been difficult to account for except as a result of a spark due to unsuspected static electrification of the equipment used in operating theatres. Tests have been carried out in a number of hospitals, and it has been found that electrification of a frictional character, sufficient to produce a spark capable of igniting anaesthetic vapours, can often be generated in a simple manner. Measurements have been made in connection with methods suggested for the reduction of the risk to a negligible quantity. Phenomena are discussed which may lead to ignition due to the use of oxygen at high pressure. The recent development of electrically-conducting rubber promises to afford a valuable preventive of static electrification. A bibliography has been compiled which indicates the seriousness of the risks associated with electrification.
