National Measurement Standards Provision System
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METI designates National Primary Standards or Reference Materials, which are the source of calibration in response to industrial needs and the provision scheme of national measurement standards based on the Measurement Law.
National Metrology Institute Japan of National Institute of Advanced Industrial Science & Technology (NMIJ/AIST), Japan Electric Meters Inspection Corporation (JEMIC) and METI-Designated Calibration Laboratories calibrate and evaluate the reference standards of Accredited Calibration Laboratories (i.e. Secondary Standards) with thier National Primary Standards.
From April 2001, these Accredited Calibration Laboratories could provide calibration services to the other Accredited Calibration Laboratories in the lower level of tracebility hierarchy.
These expansion of JCSS Scheme realizes and ensures the traceability of measurement to measuring instruments or testing machines used in the working level.
The traceability system of measurement under JCSS is as follows;
For more information about the current situation of National Measurement Standards, please contact with Weights and Measures Research Office of NMIJ.
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