Certificate of National Institute of Technology and Evaluation

Kyowa's Standard Instruments Office is registered as an accredited calibration laboratory in the Force/Electricity (Direct Current & Low Frequency) field.

JCSS (Japan Calibration Service System) was established to assure traceability of measurement according to provisions of Measurement Law. National Institute of Technology and Evaluation examines at the International Accreditation Center (IAJapan) whether or not an applicant calibration laboratory has the technical capabilities and traceability of measurement in conformity with the international standard ISO/IEC 17025 for calibration.

Permanent Laboratory Calibration

General Field of Calibration : Force

Date of Initial Accreditation of the Field : 2011-05-02
Permanent Laboratory/On-site Calibration : Permanent Laboratory

Calibration Procedures# and Type of Instruments/Materials to be calibrated		Range		CMC (Level of Confidence Approximately 95 %)
Force-proving Instruments	According to JIS B 7728	Compression	From 100 N up to 2 kN	0.012 %
			From 500 N up to 20 kN	0.011 %
			From 5 kN up to 500 kN	0.022 %
		Tension	From 100 N up to 2 kN	0.012 %
			From 500 N up to 20 kN	0.014 %
			From 5 kN up to 500 kN	0.028 %

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

General Field of Calibration: Electricity ( Direct Current & Low Frequency)

Date of Initial Accreditation of the Field: 2014-11-13
Permanent Laboratory/On-site Calibration: Permanent Laboratory

Calibration Procedures# and Type of Instruments/Materials to be calibrated		Range		CMC (Level of Confidence Approximately 95 %)
Direct Current & Low Frequency Measuring Equipment, etc	DC Voltage Source	100 mV		1.9 μV
		1 V		6.0 μV
		2 V		12 μV
		4 V		23 μV
		5 V		29 μV
		6 V		34 μV
		10 V		56 μV
	Direct Current Source	1 mA		0.030 μA
		10 mA		0.30 μA
		100 mA		4.7 μA
	DC Resistor	100 Ω		2.5m Ω
		1k Ω		0.013 Ω
		10k Ω		0.13 Ω
	DC Voltage Measuring Equipment	100 mV		1.9 μV
		1 V		6.3 μV
		2 V		12 μV
		4 V		21 μV
		5 V		25 μV
		6 V		29 μV
		10 V		46 μV
	Direct Current Measuring Equipment	1 mA		0.038 μA
		10 mA		0.35 μA
		100 mA		4.5 μA
	DC Resistance Measuring Equipment	100 Ω		2.2m Ω
		1k Ω		0.013 Ω
		10k Ω		0.13 Ω
	AC Voltage Source	50 Hz	1 V	0.00012 V
		60 Hz		0.00012 V
		500 Hz		0.00011 V
		1 kHz		0.00011 V
		10 kHz		0.00019 V
		100 kHz		0.00096 V
		200 kHz		0.0036 V
	AC Voltage Measuring Equipment	50 Hz	1 V	0.000064 V
		60 Hz		0.000064 V
		500 Hz		0.000061 V
		1 kHz		0.000081 V
		10 kHz		0.000061 V
		100 kHz		0.00016 V
		200 kHz		0.00073 V

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

General Field of Calibration: Time & Frequency & Rotational speed

Date of Initial Accreditation of the Field: 2015-06-12
Permanent Laboratory/On-site Calibration: Permanent Laboratory

Calibration Procedures# and Type of Instruments/Materials to be calibrated		Range	CMC (Level of Confidence Approximately 95 %)
Time & Frequency Counter,etc.	Frequency Generator*	50 Hz	1.1×10^-5 Hz
		60 Hz	1.3×10^-5 Hz
		100 Hz	2.1×10^-5 Hz
		200 Hz	4.2×10^-5 Hz
		500 Hz	1.1×10^-4 Hz
		1 kHz	2.1×10^-4 Hz
		2 kHz	4.2×10^-4 Hz
		5 kHz	1.1×10^-3 Hz
		10 kHz	2.1×10^-3 Hz
		20 kHz	4.2×10^-3 Hz
		100 kHz	2.1×10^-2 Hz
		200 kHz	4.2×10^-2 Hz
		10 MHz	2.1×10^-6 MHz
	Frequency Counter*	50 Hz	5.8×10^-6 Hz
		60 Hz	7.0×10^-6 Hz
		100 Hz	1.2×10^-5 Hz
		200 Hz	2.4×10^-5 Hz
		500 Hz	5.8×10^-5 Hz
		1 kHz	1.2×10^-4 Hz
		2 kHz	2.4×10^-4 Hz
		5 kHz	5.8×10^-4 Hz
		10 kHz	1.2×10^-3 Hz
		20 kHz	2.4×10^-3 Hz
		100 kHz	1.2×10^-2 Hz
		200 kHz	2.4×10^-2 Hz
		10 MHz	1.2×10^-6 MHz

*The values in the CMC column include sources of uncertainty attributed to aunit under test.
#All Calibration Procedures are in-house procedures developed by this laboratory

General Field of Calibration: Acceleration

Date of Initial Accreditation of the Field: 2017-10-26
Permanent Laboratory/On-site Calibration: Permanent Laboratory

Calibration Procedures# and Type of Instruments/Materials to be calibrated		Range	CMC (Level of Confidence Approximately 95 %)
Vibration Acceleration Measuring Equipmet,etc.	Reference Accelerometer(Voltage Sensitivity)	0.1 Hz	0.6 %
		0.125 Hz	0.8 %
		0.16 Hz	0.7 %
		0.2 Hz	0.7 %
		0.25 Hz	0.7 %
		0.315 Hz	0.5 %
		0.4 Hz	0.5 %
		0.5 Hz	0.7 %
		0.63 Hz	0.5 %
		0.8 Hz	0.5 %
		1 Hz	0.5 %
		1.25 Hz	0.5 %
		1.6 Hz	0.5 %
		2 Hz	0.5 %
		2.5 Hz	0.5 %
		3.15 Hz	0.6 %
		4 Hz	0.6 %
		5 Hz	0.5 %
		6.3 Hz	0.5 %
		8 Hz	0.5 %
		10 Hz	0.5 %
		12.5 Hz	0.5 %
		16 Hz	0.5 %
		20 Hz	0.5 %
		25 Hz	0.5 %
		31.5 Hz	0.5 %
		40 Hz	0.5 %
		50 Hz	0.6 %
		63 Hz	0.5 %
		80 Hz	0.5 %
		100 Hz	0.5 %
		125 Hz	0.5 %
		160 Hz	0.5 %
		200 Hz	0.5 %
		250 Hz	0.7 %
		315 Hz	0.7 %
		400 Hz	0.8 %
		500 Hz	0.6 %
		630 Hz	0.6 %
		800 Hz	0.6 %
		1000 Hz	0.6 %
		1250 Hz	0.6 %
		1600 Hz	0.6 %
		2000 Hz	0.7 %
		2500 Hz	0.8 %
		3150 Hz	0.7 %
		4000 Hz	0.7 %
		5000 Hz	0.7 %
		6300 Hz	0.8 %
		8000 Hz	0.7 %
		10000 Hz	1.4 %
	Reference Accelerometer (Voltage ration Sensitivity)	0.1 Hz	2.1 %
		0.125 Hz	1.9 %
		0.16 Hz	1.7 %
		0.2 Hz	1.7 %
		0.25 Hz	1.7 %
		0.315 Hz	1.5 %
		0.4 Hz	1.5 %
		0.5 Hz	1.0 %
		0.63 Hz	0.8 %
		0.8 Hz	0.8 %
		1 Hz	0.8 %
		1.25 Hz	0.8 %
		1.6 Hz	0.8 %
2 Hz		0.8 %
2.5 Hz		0.8 %
3.15 Hz		0.9 %
4 Hz		0.9 %
5 Hz		0.8 %
6.3 Hz		0.8 %
8 Hz		0.8 %
10 Hz		0.8 %
12.5 Hz		0.8 %
16 Hz		0.8 %
20 Hz		0.8 %
25 Hz		0.8 %
31.5 Hz		0.8 %
40 Hz		0.8 %
50 Hz		0.9 %
63 Hz		0.8 %
80 Hz		0.8 %
100 Hz		0.8 %
125 Hz		0.9 %
160 Hz		1.0 %
200 Hz		1.0 %
250 Hz		1.0 %
315 Hz		1.0 %
400 Hz		1.1 %
500 Hz		0.9 %
630 Hz		0.9 %
800 Hz		0.9 %
1000 Hz		0.9 %
1250 Hz		0.9 %
1600 Hz		0.9 %
2000 Hz		1.0 %
2500 Hz		1.1 %
3150 Hz		1.0 %
4000 Hz		1.0 %
5000 Hz		1.0 %
6300 Hz		1.1 %
8000 Hz		1.0 %
10000 Hz		1.6 %

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

KYOWA has been accredited by JCSS based on both accreditation standard ISO/IEC 17025 and accreditation scheme ISO/IEC 17011.
IAJapan run by JCSS has signed MRAs of Asia Pacific Accreditation Cooperation (APAC) as well as International Laboratory Accreditation Cooperation (ILAC).
KYOWA's Standard Apparatus Calibration Room is a laboratory accredited by JCSS and also meets the requirement for MRA of ILAC and APAC.The Accreditation No. is 0096.