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In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a 2 + b 2]1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)
Bulgaria, BIM (Bulgarian Institute of Metrology)
Linear vibration ,
Acceleration
:
1 m/s2 to 1000 m/s2
Acceleration measuring instrument
Relative expanded uncertainty
:
2 %
Comparison, ISO 16063-21
Frequency : 6.3 kHz to 10 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-00000576-1
Measurement microphones ,
Pressure sensitivity level
Measurement microphone type LS1P
Absolute expanded uncertainty
:
0.18 dB
Pressure sequential comparison
Frequency : 5 kHz to 10 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000056Q-1
Sound measuring instruments ,
Free-field response level
Sound level meter
Absolute expanded uncertainty
:
0.4 dB
Sequential comparison
Frequency : 63 Hz to 4 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000056Y-1
Measurement microphones ,
Pressure sensitivity level
Working standard microphone
Absolute expanded uncertainty
:
0.14 dB
Pressure sequential comparison
Frequency : 63 Hz to 4 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000056R-1
Sound calibrators ,
Sound pressure level
:
70 dB (reference: 20 µPa) to 125 dB (reference: 20 µPa)
Sound calibrator, single frequency 160 Hz to 1000 Hz
Absolute expanded uncertainty
:
0.1 dB
Calibrated measurement microphone
Microphone type : LS1P
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000056V-1
Linear vibration ,
Acceleration
:
0.1 m/s2 to 1000 m/s2
Calibrator
Relative expanded uncertainty
:
0.5 %
Laser interferometry, ISO 16063-11
Frequency : 0.5 Hz to 1000 Hz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-00000571-1
Measurement microphones ,
Free-field sensitivity level
Measurement microphone
Absolute expanded uncertainty
:
0.3 dB
Sequential comparison
Frequency : 63 Hz to 4 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000056T-1
Measurement microphones ,
Free-field sensitivity level
Measurement microphone
Absolute expanded uncertainty
:
0.5 dB
Sequential comparison
Frequency : 5 kHz to 10 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000056U-1
Linear vibration ,
Voltage sensitivity (magnitude)
Accelerometer, acceleration measuring chain
Relative expanded uncertainty
:
2 %
Comparison, ISO 16063-21
Frequency : 6.3 kHz to 10 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000057C-1
Sound measuring instruments ,
Sound pressure response level
:
94 dB (reference: 20 µPa) to 124 dB (reference: 20 µPa)
Sound level meter
Absolute expanded uncertainty
:
0.2 dB
Sound calibrator
Frequency : 1 kHz / 250 Hz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000056X-1
Linear vibration ,
Acceleration
:
0.1 m/s2 to 1000 m/s2
Acceleration measuring instrument
Relative expanded uncertainty
:
1 %
Comparison, ISO 16063-21
Frequency : 5 Hz to 5 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-00000575-1
Linear vibration ,
Voltage sensitivity (magnitude)
Accelerometer, acceleration measuring chain
Relative expanded uncertainty
:
0.5 %
Laser interferometry, ISO 16063-11
Frequency : 5 Hz to 1000 Hz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000057A-1
Linear vibration ,
Charge sensitivity (magnitude)
Accelerometer
Relative expanded uncertainty
:
2 %
Comparison, ISO 16063-21
Frequency : 6.3 kHz to 10 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-00000579-1
Measurement microphones ,
Pressure sensitivity level
Measurement microphone type LS1P
Absolute expanded uncertainty
:
8.0E-2 dB
Pressure sequential comparison
Frequency : 63 Hz to 1 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000056O-1
Measurement microphones ,
Pressure sensitivity level
Measurement microphone type LS1P
Absolute expanded uncertainty
:
0.12 dB
Pressure sequential comparison
Frequency : 1.25 kHz to 4 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000056P-1
Sound calibrators ,
Sound pressure level
:
70 dB (reference: 20 µPa) to 125 dB (reference: 20 µPa)
Sound calibrator, single frequency 160 Hz to 1000 Hz
Absolute expanded uncertainty
:
0.15 dB
Calibrated measurement microphone
Microphone type : WS2P
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-0000056W-1
Linear vibration ,
Acceleration
:
1 m/s2 to 1000 m/s2
Calibrator
Relative expanded uncertainty
:
2 %
Comparison, ISO 16063-21
Frequency : 6.3 kHz to 10 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-00000573-1
Linear vibration ,
Charge sensitivity (magnitude)
Accelerometer
Relative expanded uncertainty
:
1 %
Comparison, ISO 16063-21
Frequency : 5 Hz to 5 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-00000578-1
Linear vibration ,
Charge sensitivity (magnitude)
Accelerometer
Relative expanded uncertainty
:
0.5 %
Laser interferometry, ISO 16063-11
Frequency : 10 Hz to 1000 Hz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-00000577-2
Linear vibration ,
Acceleration
:
0.1 m/s2 to 1000 m/s2
Calibrator
Relative expanded uncertainty
:
1 %
Comparison, ISO 16063-21
Frequency : 5 Hz to 5 kHz
Approved on 18 October 2005
CMC ID :
EURAMET-AUV-BG-00000572-1
