Please note that we cannot process your request for issuing the calibration certificate during the period from
Apr 25 to May 31 in 2025.
During this period, our measurement instruments need to be calibrated by the
JQA(Japan Quality Assurance) Organization.
We would like you to schedule your calibration request except the period.
In terms of the requests before or after the period, please contact us.
Please note that issuing the calibration certificate is a paid service.
The following documents will be included. We appreciate your interest in calibration.
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- For Example - 1/3 : Traceability chart [Graviton]

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- For Example - 2/3 : Certificate of Calibration [Graviton]

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- For Example - 3/3 : Certificate of Calibration [JQA]
