This standard applies to the specification of the performance of the following kinds of electrical and electronic equipment and instruments and the accessories used with them:
a) Those which measure electrical quantities (indicating and recording instruments).
b) Those which supply measured electrical quantities (supply instruments), such as signal generators and some power supplies.
c) Those which measure non-electrical quantities using electrical means, excluding any parts, such as transducers, which provide an electrical analogue of the non-electrical quantity; and provided that there exists no IEC product standard relating to the equipment or its electrical or electronic parts which has requirements that contradict this standard. The expression of performance covers only the electrical or electronic part.
SIS SS IEC 359:1988 history
1988SIS SS IEC 359:1988 Expression of the performance of electrical and electronic measuring equipment