This British Standard specifies safety requirements for chairs with
support surfaces the position of which can be adjusted electrically by
the seated person and/or an attendant, including reclining chairs and
riser chairs. It is applicable to chairs for use by a person weighing up to
100 kg. The standard is not applicable to multiple seating units.
In the text of this standard the term “chairs” is used to refer to chairs
with electrically operated support surfaces.
This British Standard is applicable to chairs that are intended by the
manufacturer to be used as medical devices as defined by EC Directive
93/42 (the Medical Devices Directive) [1].
The standard is not applicable to chairs that are intended for use during
the administration of treatment by a medical practitioner, for example
dentists’ chairs.
NOTE Chairs with electrically operated support surfaces that are not
intended by the manufacturer to be used as medical devices are specified
in BS 8474.