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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
 
Mass. Mass standard, 1 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in µg: 58
Comparisons in air
Approved on 24 March 2007
Internal NMI service identifier: NMIJ/M-WE-00
 
Mass. Mass standard, 1 mg to 100 mg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in µg: 0.6 to 1.5
Comparisons in air
Approved on 24 March 2007
Internal NMI service identifier: NMIJ/M-WE-01
 
Mass. Mass standard, 0.1 g to 1 g
Absolute expanded uncertainty (k = 2, level of confidence 95%) in µg: 1.5 to 3
Comparisons in air
Approved on 24 March 2007
Internal NMI service identifier: NMIJ/M-WE-02
 
Mass. Mass standard, 1 g to 10 g
Absolute expanded uncertainty (k = 2, level of confidence 95%) in µg: 3 to 6
Comparisons in air
Approved on 24 March 2007
Internal NMI service identifier: NMIJ/M-WE-03
 
Mass. Mass standard, 10 g to 100 g
Absolute expanded uncertainty (k = 2, level of confidence 95%) in µg: 6 to 15
Comparisons in air
Approved on 24 March 2007
Internal NMI service identifier: NMIJ/M-WE-04
 
Mass. Mass standard, 0.1 kg to 1 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in µg: 15 to 58
Comparisons in air
Approved on 24 March 2007
Internal NMI service identifier: NMIJ/M-WE-05
 
Mass. Mass standard, 1 kg to 20 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in µg: 58 to 3000
Comparisons in air
Approved on 24 March 2007
Internal NMI service identifier: NMIJ/M-WE-06
 
Mass. Mass standard, 20 kg to 50 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 3 to 8
Comparisons in air
Approved on 24 March 2007
Internal NMI service identifier: NMIJ/M-WT-01
 
Mass. Mass standard, 50 kg to 100 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in mg: 8 to 200
Comparisons in air
Approved on 24 March 2007
Internal NMI service identifier: NMIJ/M-WT-02
 
Mass. Mass standard, 100 kg to 1000 kg
Absolute expanded uncertainty (k = 2, level of confidence 95%) in g: 0.2 to 3
Comparisons in air
Approved on 24 March 2007
Internal NMI service identifier: NMIJ/M-WT-03
 
Distribution temperature. Tungsten lamp, 2000 K to 3400 K
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in K: 15
Spectroradiometer
Approved on 16 January 2011
 
Responsivity, laser power. General detector. Measurand unit, A/W, V/W, reading/W, W, dB, dBm
Relative expanded uncertainty (k = 2, level of confidence 95 %) in %: 0.7
Laser comparator
Wavelength: 488 nm, 515 nm
Power level: > 200 mW to 1 W
Type of detector: thermopile, pyroelectric, solid state
Approved on 16 January 2011