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Japan, NMIJ AIST (National Metrology Institute of Japan)
Complete CMCs in Acoustics, Ultrasound, Vibration for Japan (.PDF file)
Pressure sensitivity level. Measurement microphone type LS1P. Measurand unit, dB (reference: 1 V/Pa)
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in dB: 0.05
IEC 61094-2:1992
Frequency: 63 Hz
Approved on 01 August 2004
 
Pressure sensitivity level. Measurement microphone type LS1P. Measurand unit, dB (reference: 1 V/Pa)
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in dB: 0.04
IEC 61094-2:1992
Frequency: 80 Hz to 4 kHz
Approved on 01 August 2004
 
Pressure sensitivity level. Measurement microphone type LS1P. Measurand unit, dB (reference: 1 V/Pa)
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in dB: 0.05
IEC 61094-2:1992
Frequency: 5 kHz
Approved on 01 August 2004
 
Pressure sensitivity level. Measurement microphone type LS1P. Measurand unit, dB (reference: 1 V/Pa)
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in dB: 0.06
IEC 61094-2:1992
Frequency: 6.3 kHz to 8 kHz
Approved on 01 August 2004
 
Voltage sensitivity (modulus). Acceleration measuring chain. Measurand unit, V/(m/s2)
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.3
ISO 16063-11
Acceleration: 10 m/s2 to 100 m/s2
Frequency: 40 Hz to 80 Hz
Approved on 01 August 2004
 
Voltage sensitivity (modulus). Acceleration measuring chain. Measurand unit, V/(m/s2)
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.5
ISO 16063-11
Acceleration: 10 m/s2 to 100 m/s2
Frequency: 100 Hz to 200 Hz
Approved on 01 August 2004
 
Voltage sensitivity (modulus). Acceleration measuring chain. Measurand unit, V/(m/s2)
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 1.0
ISO 16063-11
Acceleration: 10 m/s2 to 100 m/s2
Frequency: 250 Hz to 2 kHz
Approved on 01 August 2004
 
Voltage sensitivity (modulus). Accelerometer. Measurand unit, V/(m/s2)
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 1.5
ISO 16063-11
Acceleration: 10 m/s2 to 100 m/s2
Frequency: 2.5 kHz to 5 kHz
Approved on 01 August 2004
 
Reflectance, diffuse, spectral. Spectrally-neutral material, 0.8 to 1
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.46
Reference spectrophotometer
Wavelength: 360 nm to 440 nm (excludes 440 nm)
Bandwidth: 1.5 nm
Specific measurement conditions: d/0, 0/d
Approved on 16 January 2011
 
Reflectance, diffuse, spectral. Spectrally-neutral material, 0.8 to 1
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.30
Reference spectrophotometer
Wavelength range: 440 nm to 770 nm (excludes 770 nm)
Bandwidth: 1.5 nm
Specific measurement conditions: d/0, 0/d
Approved on 16 January 2011
 
Reflectance, diffuse, spectral. Spectrally-neutral material, 0.8 to 1
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.42
Reference spectrophotometer
Wavelength: 770 nm to 900 nm (excludes 900 nm)
Bandwidth: 1.5 nm
Specific measurement conditions: d/0, 0/d
Approved on 16 January 2011
 
Reflectance, diffuse, spectral. Spectrally-neutral material, 0.8 to 1
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.64
Reference spectrophotometer
Wavelength range: 900 nm to 1200 nm (excludes 1200 nm)
Bandwidth: 3 nm
Specific measurement conditions: d/0, 0/d
Approved on 16 January 2011
 
Reflectance, diffuse, spectral. Spectrally-neutral material, 0.8 to 1
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.80
Reference spectrophotometer
Wavelength range: 1200 nm to 1600 nm
Bandwidth: 3 nm
Specific measurement conditions: d/0, 0/d
Approved on 16 January 2011
 
Fiber optic power meter, linearity. General detector, 1E-09 W to 1E-03 W
Relative expanded uncertainty (k = 2, level of confidence 95 %) in dB: 5E-04 to 4.5E-03, varies with attenuation
Fiber optic power meter
Wavelength: 1550 nm
Specification standard used: optical power meter with calibrated linearity
Approved on 16 January 2011
 
Responsivity, fiber optic power. Fiber optic power meter. Measurand unit, A/W, V/W, reading/W, W, dB, dBm
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.23 to 0.33, varies with power level
Comparison with reference
Wavelength: 1310 nm
Power level: 1 pW to 1 mW
Type of laser: ECLD
Approved on 16 January 2011
 
Responsivity, fiber optic power. Fiber optic power meter. Measurand unit, A/W, V/W, reading/W, W, dB, dBm
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.23 to 0.26, varies with power level
Comparison with reference
Wavelength: 1550 nm
Power level: 1 pW to 1 mW
Type of laser: ECLD
Approved on 16 January 2011
 
Responsivity, fiber optic power. Fiber optic power meter. Measurand unit, A/W, V/W, reading/W, W, dB, dBm
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.23 to 0.26, varies with power level
Comparison with reference
Wavelength: 1550 nm
Power level: 1 mW to 1 W
Type of laser: ECLD with Optical Amplifier
Approved on 16 January 2011
 
Responsivity, fiber optic power. Fiber optic power meter. Measurand unit, A/W, V/W, reading/W, W, dB, dBm
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.21
Comparison with reference
Wavelength: 852 nm
Power level: 1 mW
Type of laser: FPLD
Approved on 16 January 2011
 
Responsivity, fiber optic power. Fiber optic power meter. Measurand unit, A/W, V/W, reading/W, W, dB, dBm
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.30
Comparison with reference
Wavelength: 852 nm
Power level: 0.5 mW to < 1 mW
Type of laser: FPLD
Approved on 16 January 2011
 
Responsivity, fiber optic power. Fiber optic power meter. Measurand unit, A/W, V/W, reading/W, W, dB, dBm
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.34
Comparison with reference
Wavelength: 852 nm
Power level: 0.1 mW to < 0.5 mW
Type of laser: FPLD
Approved on 16 January 2011