measuring instrument reproducing or supplying, in a permanent manner during its use, quantities of one or more given kinds, each with an assigned quantity value
EXAMPLES Standard weight, volume measure (supplying one or several quantity values, with or without a quantity-value scale), standard electric resistor, line scale (ruler), gauge block, standard signal generator, certified reference material.
NOTE 1 The indication of a material measure is its assigned quantity value.
NOTE 2 A material measure can be a measurement standard.
ANNOTATION (informative) [5 June 2014] Here "quantity value" can be replaced with "value" without ambiguity: "measuring instrument reproducing or supplying, in a permanent manner during its use, quantities of one or more given kinds, each with an assigned value."