RIC Japan

RIC at Tsukuba, Japan (Region II)

(Information on this webpage is based on the latest report from the RIC.
Please refer to the RIC's website for the latest information.)

General Site Information

Address: 1-2 Nagamine Tsukuba Ibaraki 305-0052, Japan

Website: http://www.jma.go.jp/jma/jma-eng/jma-center/ric/RIC_HP.html

Contact person: Koji Haijima

Email: haijima

met [dot] kishou [dot] go [dot] jp (haijima[at]met[dot]kishou[dot]go[dot]jp); ric-tsukuba

met [dot] kishou [dot] go [dot] jp (ric-tsukuba[at]met[dot]kishou[dot]go[dot]jp)

Tel: +81 298 51 4123

Fax:

Calibration capabilities: Temperature, Relative Humidity, Atmospheric Pressure, Wind

Specific Information on instrument calibration capabilities

Temperature

Instrument Undergoing Calibration	Calibration Range	Reference standard, Equipment	Calibration and Measurement Capability (CMC)*	Traceability of Reference equipment
				Last standard calibration date	Calibration body
Contact Type Thermometer	-40 to 50 °C	Platinum resistance thermometer NSR-160 (Netsushin)	From -40 °C to less than 0 °C :45 mK, 0 °C : 13 mK, from more than 0 °C up to 50 °C : 36 mK (Level of confidence approximately 95 %)	23 August 2023	Japan Electric Meters Inspection Corporation

Status of accreditation (date of the latest accreditation): Valid, accredited 30 August 2020 according to ISO/IEC 17025:2017, 30 August 2020

Link to the accreditation certificate

Accreditation body: National Institute of Technology and Evaluation (Japan)

Relative Humidity

Instrument Undergoing Calibration	Calibration Range	Reference standard, Equipment	Calibration and Measurement Capability (CMC)*	Traceability of Reference equipment
				Last standard calibration date	Calibration body
Dew-point hygrometer	Dew point: -5 to 0 °C	Chilled-mirror dew-point hygrometer (display) DewStar S-1M-0 (sensor) DewStar S-2S-0K (Shinyei technology, Japan)	Dew point 0.12 °C (Level of confidence approximately 95 %)	22 February 2023	National Metrology Institute of Japan
	Dew point: 0 to 25 °C		Dew point 0.09°C (Level of confidence approximately 95 %)
Electronic hygrometer	20 to < 30 %RH (for temp: 20 to 26 °C)		0.8 %RH (Level of confidence approximately 95 %)
	30 to 95 %RH (for temp: 20 to 26 °C)		1.7 %RH (Level of confidence approximately 95 %)
	20 to < 30 %RH (for temp: 20 - 26 °C)(1)		0.6 %RH (Level of confidence approximately 95 %)
	30 to 95 %RH (for temp: 20 - 26 °C)(1)		1.4 %RH (Level of confidence approximately 95 %)

(1) - Calibration which regards a dew-point hygrometer as the hygrometer of a relative humidity indication

Status of accreditation (date of the latest accreditation): Valid, accredited 30 August 2020 according to ISO/IEC 17025:2017, 30 August 2020

Link to the accreditation certificate

Accreditation body: National Institute of Technology and Evaluation (Japan)

Atmospheric Pressure

Instrument Undergoing Calibration	Calibration Range	Reference standard, Equipment	Calibration and Measurement Capability (CMC)*	Traceability of Reference equipment
				Last standard calibration date	Calibration body
Digital pressure gauge	50 to 1150 hPa	Pressure balance AV-02 (Futaba sokki)	The lager one of the two0.0085% or 7.5 Pa (Level of confidence approximately 95 %)	8 October 2021	National Metrology Institute of Japan

Status of accreditation (date of the latest accreditation): Valid, accredited 30 August 2020 according to ISO/IEC 17025:2017, 30 August 2020

Link to the accreditation certificate

Accreditation body: National Institute of Technology and Evaluation (Japan)

Wind

Instrument Undergoing Calibration	Calibration Range	Reference standard, Equipment	Calibration and Measurement Capability (CMC)*	Traceability of Reference equipment
				Last standard calibration date	Calibration body
Anemometer	0.5 to 90 m/s	From 0 to 20 m/s: Ultrasonic anemometer DA-700 (Sonic, Japan)	N/A	27 November 2023	National Metrology Institute of Japan
		From 20 to 90 m/s: Pitot tube JB1512154 (Tsukuba Rikaseiki, Japan) Differential pressure gauge MT210 (2 sets) (Yokogawa, Japan)		21 February 2022

Status of accreditation:

Link to the accreditation certificate

Accreditation body:

* A CMC (calibration and measurement capability) is the smallest uncertainty of measurement that can be expected to be achieved by the RIC during a calibration. This CMC is evaluated by the RIC itself and described in the scope of accreditation of the RIC, if available.