JIS B 7440-2:1997

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This part of Standard specifies: a) the acceptance test, which verifies that the performance of a coordinate measuring machine (CMM) and the CMM probing system is as stated by the manufacturer; b) the reverification test, which enables the user to reverify CMM performance and the CMM probing system periodically; c) the interim check (see annex 1), which enables the user to make checks on a CMM and the CMM probing system between regular reverification tests; in relation to the three-dimensional error of length measurement of a CMM capable of measuring Cartesian, cylindrical or spherical coordinates of points in space. A limited number of tests is carried out, but their locations may be anywhere within the working volume of the CMM. Three nonredundant axes (excluding the axes associated with the probe system) shall be tested.