Do you need to verify the mortar water retention test mold and the cement slurry round mold? Can it be self-calibrated?

Of course, verification is required, and all devices that have an impact on the test results need to be verified. If it is submitted for inspection, it may be a calibration report; If the technical department does not have the calibration of this ring mold, it can use other measuring tools that can trace the value for self-calibration; Write a self-calibration if necessary.

Engineering specification

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Traceability of magnitude

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