Checking of a coordinate measuring machine (CMM) was conducted based on ISO 10360-2 : 2009, Part 2 : CMMs used for measuring linear dimensions, 8.3 Interim check. Workers have difficulty performing checks of CMM because this ISO standard shows no concrete working procedure for checking. Six prefectural public research institutes in the Tohoku area conducted round-robin test evaluations of CMM performance using artifacts of two materials (low CTE ceramics and carbon tool steel) in order to make a working indicator of checking. Uncertainties of coordinate measurements, as calculated using ANOVA and SN ratio of measurements, were compared and verified. Results show the characteristic that the artifacts should provide and suitable checking methods for 8.3 interim checking of the ISO standard.