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23 11 22-NITE-001
2 0 2 4 - 0 6 - 0 5

Certificate of Accreditation
International Accreditation Japan (IAJapan) hereby accredits the following
conformity assessment body as a calibration laboratory of Japan Calibration
Service System.
Accreditation Identification : JCSS 0214 Calibration
Name of Conformity Assessment Body : Calibration Services, Technology Center,
OHTE GIKEN, INC.

Name of Legal Entity: OHTE GIKEN, INC.
Location of Conformity Assessment Body: 1-25-12 Kannondai, Tsukuba-shi, Ibaraki 300-0856, JAPAN
Scope of Accreditation : Mass, Temperature, Electricity (Direct Current & Low Frequency),Pressure (as the following pages)
Accreditation Requirement : ISO/IEC 17025:2017** The relevant accreditation requirements described in the Accreditation
Scheme Document for JCSS are also applied.

Effective Date of Accreditation : 2023-02-14
Expiry Date of Accreditation : 2027-02-13
Date of Initial Accreditation : 2008-06-11

TANAKA Hideaki
Chief Executive, International Accreditation Japan (IAJapan)
National Institute of Technology and Evaluation- International Accreditation Japan (IAJapan) is a laboratory accreditation body which has signed MRAs of ILAC (International Laboratory
Accreditation Cooperation) and APAC (Asia Pacific Accreditation Cooperation).
- MRA requirements are, in addition to relevant international standards and guides, requirements for participation in proficiency testing
programs, surveillance and reassessment, and the policy for the traceability of measurement for MRA purpose.
- This laboratory fulfills ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. This
accreditation means this laboratory meets both the technical competence requirements and management system requirements that arenecessary for it to consistently deliver technically valid test results and calibrations (refer to joint ISO-ILAC-IAF Communiqué dated April2017).
- The latest accreditation information is publicly available on IAJapan Website as an accreditation certificate.

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General Field of Calibration: Mass
Date of Initial Accreditation of the Field: 2009-09-01
Laboratory’s permanent facility/On-site Calibration: Laboratory’s permanent facility
Calibration and Measurement Capabilities
Calibration Procedures# andType of Instruments/Materials
to be calibrated

WeightWeightDeadweight

Range

Expanded Uncertainty(Level of Confidence
Approximately 95 %)(Conventional Mass)

1 mg

0.005 mg

2 mg

0.005 mg

5 mg

0.005 mg

10 mg

0.005 mg

20 mg

0.005 mg

50 mg

0.005 mg

100 mg0.010 mg

200 mg0.010 mg

500 mg0.010 mg1g

0.050 mg2g

0.050 mg5g

0.15 mg

10 g

0.15 mg

20 g

0.15 mg

50 g

0.15 mg

100 g

0.15 mg

200 g

0.20 mg

500 g

2.0 mg

1 kg

2.0 mg2 kg

3.0 mg

5 kg

10 mg

10 kg

25 mg

From 1 mg up to 2 g

0.05 mgMore than 2 g up to 200 g

0.5 mgMore than 200 g up to 1 kg

4.0 mgMore than 1 kg up to 2 kg

6.0 mgMore than 2 kg up to 5 kg

15 mg

More than 5 kg up to 15 kg

50 mg#All Calibration Procedures are in-house procedures developed by this laboratory.

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General Field of Calibration: Temperature
Date of Initial Accreditation of the Field: 2013-09-05
Laboratory’s permanent facility/On-site Calibration: Laboratory’s permanent facility
Calibration and Measurement Capabilities
Calibration Procedures# andType of Instruments/Materials
to be calibrated
Temperature sensors with display unit
Contact Type Thermometer(Comparison calibration)

Range

Expanded Uncertainty(Level of Confidence
Approximately 95 %)From 0 oC up to 100 oC

0.050 K#All Calibration Procedures are in-house procedures developed by this laboratory.
General Field of Calibration: Pressure
Date of Initial Accreditation of the Field: 2008-06-11
Laboratory’s permanent facility/On-site Calibration: Laboratory’s permanent facility
Calibration and Measurement Capabilities
Calibration Procedures# and Typeof Instruments/Materials
to be calibrated

Range

Gas

Gauge
Pressure

Pressure Balance

From 10 kPa up to 350 kPa
More than 350 kPa up to 7000 kPa
From 0.1 MPa up to 100 MPa

LiquidGauge
Pressure

Absolute
Pressure
GasGauge
Pressure

Pressure Gauge

More than 100 MPa up to 200 MPa

0.0070 %More than 200 MPa up to 350 MPa

0.010 %

More than 350 MPa up to 400 MPa

0.013 %

From 10 kPa up to 7000 kPa

The larger one of the two
0.0040 % or 4.0 Pa

From -90 kPa up to -10 kPa

10 Pa
The larger one of the two
0.0040 % or 1.0 Pa
The larger one of the two
0.0060 % or 0.60 kPa

From 10 kPa up to 7000 kPa
From 0.2 MPa up to 100 MPa

Pressure Gauges(Digital Pressure
Gauges, PressureTransducers)

Absolute
Pressure
LiquidGauge
Pressure

Mechanical Type
Pressure Gauges

GasGauge
Pressure

LiquidGauge
Pressure

Expanded Uncertainty(Level of Confidence
Approximately 95 %)The larger one of the two
0.0035 % or 1.0 Pa
The larger one of the two
0.0037 % or 19 Pa
The larger one of the two
0.0060 % or 0.60 kPa

More than 100 MPa up to 200 MPa

0.0070 %More than 200 MPa up to 350 MPa

0.010 %

More than 350 MPa up to 400 MPa

0.013 %

From 0.1 MPa up to 100 MPa

The larger one of the two
0.0060 % or 0.60 kPa

More than 100 MPa up to 200 MPa

0.0070 %More than 200 MPa up to 350 MPa

0.010 %

More than 350 MPa up to 400 MPa

0.013 %

From -90 kPa up to -10 kPa

100 PaFrom 10 kPa up to 7000 kPa

0.10 % of maximum pressure

From 0.1 MPa up to 200 MPa

0.10 % of maximum pressure#All Calibration Procedures are in-house procedures developed by this laboratory.

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General Field of Calibration: Electricity (Direct Current & Low Frequency)
Date of Initial Accreditation of the Field: 2024-06-05
Laboratory’s permanent facility/On-site Calibration: Laboratory’s permanent facility
Calibration and Measurement Capabilities
Calibration Procedures# andType of Instruments/Materials
to be calibrated

Range

Expanded Uncertainty(Level of Confidence
Approximately 95 %)75

9Direct Current &Low Frequency
Measuring Equipment,etc.

DC Resistor

More
More than2024/06/05 JCSS0214 3/7

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DC Resistance
Measuring Equipment
Direct Current &Low Frequency
Measuring Equipment,
etc.

More

0 mV
10 mV
25 mV
DC Voltage Source

50 mV
75 mV
100 mV
200 mV

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400 mV600 mV800 mV
1.0 V
2V
4V
6V
8V
10 V
25 V

0.37 mV50 V

0.68 mV75 V

1.0 mV

100 V

1.3 mV

More than 10 mV less than 25 mV
DC Voltage Source

More than 25 mV less than 50 mVMore than 50 mV less than 75 mVMore than 75 mV less than 100 mVMore than 200 mV less than 400 mV

Direct Current &Low Frequency
Measuring Equipment,
etc.

More than 400 mV less than 600 mVMore than 600 mV less than 800 mVMore than 800 mV less than 1 V
More than 2 V less than 4 V

0.13 mV

More than 4 V less than 6 V

0.14 mV

More than 6 V less than 8 V

0.14 mV

More than 8 V less than 10 V

0.15 mV

More than 10 V less than 25 V

1.4 mV

More than 25 V less than 50 V

1.5 mV

More than 50 V less than 75 V

1.7 mV

More than 75 V less than 100 V

1.9 mV

0 mV
10 mV
50 mV
100 mVDC Voltage
Measuring Equipment

150 mV
200 mV
500 mV
1.0 V
1.5 V
2V

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4V
6V
8V
10 V
12 V14 V16 V
18 V
20 V

0.10 mV40 V

0.27 mV60 V

0.39 mV

80 V

0.51 mV100 V

0.62 mV

More than 10 mV less than 50 mVMore than 50 mV less than 100 mVMore than 100 mV less than 150 mV
DC Voltage
Measuring Equipment
Direct Current &Low Frequency
Measuring Equipment,
etc.

More than 150 mV less than 200 mVMore than 0.2 V less than 0.5 V
More than 0.5 V less than 1.0 V

15More than 1.0 V less than 1.5 V
More than 1.5 V less than 2.0 V
More than 2 V less than 4 VMore than 4 V less than 6 V
More than 6 V less than 8 V
More than 8 V less than 10 V
More than 10 V less than 12 V

0.14 mV

More than 12 V less than 14 V

0.14 mV

More than 14 V less than 16 V

0.14 mV

More than 16 V less than 18 V

0.14 mV

More than 18 V less than 20 V

0.15 mV

More than 20 V less than 40 V

0.69 mV

More than 40 V less than 60 V

0.73 mV

More than 60 V less than 80 V

0.78 mV

More than 80 V less than 100 V

0.84 mV

0A

1.9 nA
5.7 nADirect Current Source

1 mA

51 nA

2.5 mA
5 mA

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7.5 mA
10 mA
25 mA
50 mA
75 mA
100 mA
Direct Current Source

More than 1 mA less than 2.5 mA
More than 2.5 mA less than 5 mA
More than 5 mA less than 7.5 mA
More than 7.5 mA less than 10 mA
More than 10 mA less than 25 mA
More than 25 mA less than 50 mA
More than 50 mA less than 75 mA
More than 75 mA less than 100 mA
0A

Direct Current &Low Frequency
Measuring Equipment,
etc.

1 mA
2 mA
5 mA
10 mA
15 mA
20 mA40 mA
Direct Current
Measuring Equipment

60 mA80 mA
100 mA
More than 2 mA less than 5 mA
More than 5 mA less than 10 mA
More than 10 mA less than 15 mA
More than 15 mA less than 20 mA
More than 20 mA less than 40 mA
More than 40 mA less than 60 mA
More than 60 mA less than 80 mA

More than 80 mA less than 100 mA#All Calibration Procedures are in-house procedures developed by this laboratory.

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