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Certificate details


Field of Calibration: Temperature

Type of Service Calibration Scope CMC
Contact Type Thermometer Thermometer with indicator (Comparative calibration) From -40 °C less than 0 °C 45 mK
0 °C 13 mK
More than 0 °C up to 50 °C 36 mK



Field of Calibration: Pressure

Type of Service Calibration Scope CMC
Pressure Gauge Digital Pressure Gauges Gas Absolute Pressure From 5 kPa up to 115 kPa The larger one of the two 0.0081 % or 6.3 Pa



Field of Calibration: Humidity

Type of Service Calibration Scope CMC
Humidity Measuring Instrument, etc. Dew point hygrometer Dew point
From -5 °C less than 0 °C
Dew point
0.12 °C
Dew point
From 0 °C up to 25 °C
Dew point
0.09 °C
Electronic hygrometer Relative humidity
from 20 % less than 30 %
at calibration temperature
from 20 °C up to 26 °C
Relative humidity
0.8 %
Relative humidity
from 30 % less than 95 %
at calibration temperature
from 20 °C up to 26 °C
Relative humidity
1.7 %
Relative humidity
from 20 % less than 30 %
at calibration temperature
from 20 °C up to 26 °C (*)
Relative humidity
0.6 %
Relative humidity
from 30 % less than 95 %
at calibration temperature
from 20 °C up to 26 °C (*)
Relative humidity
1.4 %

(*): Calibration which regards a dew point hygrometer as the hygrometer of a relative humidity indication.



Within these provisions, RIC Tsukuba (Meteorological Instrument Center, JMA) calibrates standard instruments of NMHSs. The results are summarized in calibration certificates issued to the owner.

Links to sample certificates for individual instruments: