ASME B89.4.21.1-2020 View larger

ASME B89.4.21.1-2020

M00000079

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ASME B89.4.21.1-2020 Environmental Effects on Coordinate Measuring Machine Measurements

standard by ASME International, 04/10/2020

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This Technical Report discusses important influences of the environment on dimensional and geometric measurements performed using coordinate measuring machines (CMMs), including influences on both the machine and the workpieces to be measured. This Report discusses the thermal effects related to the use of tactile CMMs, but many of these effects are also applicable to optical and other noncontact coordinate measurement systems.