set of one or more measuring instruments and often other devices, including any reagent and supply, assembled and adapted to give information used to generate measured quantity values within specified intervals for quantities of specified kinds
NOTE A measuring system may consist of only one measuring instrument.
ANNOTATION (informative) [2 December 2014] Here "measured quantity values" can be replaced by "measured values" without ambiguity: "set of one or more measuring instruments and often other devices, including any reagent and supply, assembled and adapted to give information used to generate measured values within specified intervals for quantities of specified kinds".