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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)
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
9 to 9.4 |
4.0E-3 |
9 to 9.4 |
5.0E-3 |
-
Mechanism for measurement service delivery :
Primary measurement of Borate buffer
-
Measurement temperature 15 °C to 37 °C, data given for 25 °C. Declared uncertainties do not include the uncertainty contribution due to the Bates - Guggenheim convention (approximately 0.010, k=2)
-
Approved on
01 October 2022
-
Institute service identifier : 1.6.c-1
-
CMC ID :
EURAMET-QM-BG-0000005P-2
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
9.8 to 10.2 |
8.0E-3 |
9.8 to 10.02 |
1.0E-2 |
-
Mechanism for measurement service delivery :
Primary measurement of carbonate buffer
-
Measurement temperature 25 °C. Declared uncertainties do not include the uncertainty contribution due to the Bates - Guggenheim convention (approximately 0.010, k=2)
-
Approved on
01 October 2022
-
Institute service identifier : 1.6.c-2
-
CMC ID :
EURAMET-QM-BG-0000005Q-2
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
6.7 to 7.6 |
4.0E-3 |
|
|
-
Mechanism for measurement service delivery :
Calibration services, value assignment for proficiency testing scheme samples
-
Approved on
25 August 2020
-
Institute service identifier : 1.6.b-1
-
CMC ID :
EURAMET-QM-BG-00000LAM-1
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
1.5 to 1.9 |
1.0E-2 |
1.5 to 1.9 |
1.0E-2 |
-
Mechanism for measurement service delivery :
Primary measurement of tetroxalate buffer
-
Measurement temperature 25 °C to 37 °C, data given for 25 °C. Declared uncertainties do not include the uncertainty contribution due to the Bates - Guggenheim convention (approximately 0.010, k = 2)
-
Approved on
12 October 2022
-
Institute service identifier : 1.6.a-1
-
CMC ID :
EURAMET-QM-BG-0000005M-3
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
6.7 to 7.6 |
4.0E-3 |
6.7 to 7.6 |
4.0E-3 |
-
Mechanism for measurement service delivery :
Primary measurement of phosphate buffer
-
Measurement temperature 15 °C to 37 °C, data given for 25 °C. Declared uncertainties do not include the uncertainty contribution due to the Bates - Guggenheim convention (approximately 0.010, k=2)
-
Approved on
01 October 2022
-
Institute service identifier : 1.6.b-1
-
CMC ID :
EURAMET-QM-BG-0000005O-2
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
1.5 to 1.9 |
1.0E-2 |
|
|
-
Mechanism for measurement service delivery :
Calibration services, value assignment for proficiency testing scheme samples
-
Approved on
25 August 2020
-
Institute service identifier : 1.6.a-1
-
CMC ID :
EURAMET-QM-BG-00000LAK-1
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
9.8 to 10.2 |
8.0E-3 |
|
|
-
Mechanism for measurement service delivery :
Calibration services, value assignment for proficiency testing scheme samples
-
Approved on
25 August 2020
-
Institute service identifier : 1.6.c-2
-
CMC ID :
EURAMET-QM-BG-00000LAO-1
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
3.6 to 4.2 |
5.0E-3 |
|
|
-
Mechanism for measurement service delivery :
Calibration services, value assignment for proficiency testing scheme samples
-
Approved on
25 August 2020
-
Institute service identifier : 1.6.a-2
-
CMC ID :
EURAMET-QM-BG-00000LAL-1
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
9 to 9.4 |
4.0E-3 |
|
|
-
Mechanism for measurement service delivery :
Calibration services, value assignment for proficiency testing scheme samples
-
Approved on
25 August 2020
-
Institute service identifier : 1.6.c-1
-
CMC ID :
EURAMET-QM-BG-00000LAN-1
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
3.6 to 4.2 |
5.0E-3 |
3.6 to 4.2 |
5.0E-3 |
-
Mechanism for measurement service delivery :
Primary measurement of Phthalate buffer
-
Measurement temperature 15 °C to 37 °C, data given for 25 °C. Declared uncertainties do not include the uncertainty contribution due to the Bates - Guggenheim convention (approximately 0.010, k=2)
-
Approved on
01 October 2022
-
Institute service identifier : 1.6.a-2
-
CMC ID :
EURAMET-QM-BG-0000005N-2
Matrix or material |
Analyte or component |
Dissemination range of measurement capability |
Range of certified values in reference materials |
Mass fraction in mg/kg |
Relative expanded uncertainty in % |
Mass fraction in |
|
blood serum |
copper |
1 to 50 |
4.2 to 5 |
|
|
-
Mechanism for measurement service delivery :
Reference measurement service and reference value assignment for PT
-
Approved on
15 October 2019
-
Institute service identifier : CHM 10
-
CMC ID :
EURAMET-QM-BG-00000JX7-1
Pressure ,
Negative gauge pressure
:
1.00E4 Pa to 1.00E5 Pa
Pressure balance
Absolute expanded uncertainty
5E-04p p pressure in Pa
The uncertainty is expressed in Pa
Gas medium
Uncertainty values range from 5 Pa to 50 Pa
Approved on 11 October 2005
Institute service identifier : EUR-BIM-M-043
CMC ID :
EURAMET-M-BG-000005MY-1
Pressure ,
Absolute pressure
:
2.00E4 Pa to 7.00E6 Pa
Pressure balance
Absolute expanded uncertainty
1E-04p p pressure in Pa
The uncertainty is expressed in Pa
Gas medium
Uncertainty values range from 2 Pa to 7E+02 Pa
Approved on 11 October 2005
Institute service identifier : EUR-BIM-M-041
CMC ID :
EURAMET-M-BG-000005MV-1
Hygrometers ,
Humidity
:
50 %rh to 90 %rh
Relative humidity sensors
Absolute expanded uncertainty
:
2 %rh
Comparison in a climatic chamber
Air temperature : 20 °C to 50 °C
Approved on 17 August 2017
Institute service identifier : BIM/3.3.1
CMC ID :
EURAMET-T-BG-00000B9X-1
Hygrometers ,
Humidity
:
10 %rh to 30 %rh
Other hygrometer
Absolute expanded uncertainty
:
1.4 %rh
Comparison in a climatic chamber
Air temperature : 20 °C to 50 °C
Approved on 17 August 2017
Institute service identifier : BIM/3.3.1
CMC ID :
EURAMET-T-BG-00000BA1-1
Hygrometers ,
Humidity
:
50 %rh to 90 %rh
Other hygrometer
Absolute expanded uncertainty
:
2.2 %rh
Comparison in a climatic chamber
Air temperature : 1 °C to 20 °C
Approved on 17 August 2017
Institute service identifier : BIM/3.3.1
CMC ID :
EURAMET-T-BG-00000BA0-1
Hygrometers ,
Humidity
:
30 %rh to 50 %rh
Other hygrometer
Absolute expanded uncertainty
:
1.8 %rh
Comparison in a climatic chamber
Air temperature : 1 °C to 20 °C
Approved on 17 August 2017
Institute service identifier : BIM/3.3.1
CMC ID :
EURAMET-T-BG-00000B9Z-1
DC resistance ,
DC resistance standards and sources: high values
:
1.00E7 Ω to 1.00E9 Ω
Fixed resistor: R
Relative expanded uncertainty
:
3.2 µΩ/Ω to 1.1E2 µΩ/Ω
Uncertainty table
{"row_1":{"col_1":"","col_2":"Expanded uncertainty"},"row_2":{"col_1":"10 Mohm","col_2":"3.2"},"row_3":{"col_1":"100 Mohm","col_2":"50"},"row_4":{"col_1":"1 Gohm","col_2":"110"}}
Comparison by means of automated high resistance bridge
R : decade values
Measurements only at 23 °C in air bath
Approved on 06 August 2013
Institute service identifier : 75
CMC ID :
EURAMET-EM-BG-00000DV6-1
Impedance (up to the MHz range) ,
Capacitance for dielectric capacitors
:
0.01 µF to 1 µF
Fixed capacitor
Relative expanded uncertainty
:
2.0E1 µF/F to 5.0E1 µF/F
Uncertainty table
{"row_1":{"col_1":"","col_2":"Expanded uncertainty in µF/F"},"row_2":{"col_1":"10 nF to 100 nF","col_2":"20 to 30"},"row_3":{"col_1":"200 nF to 1 µF","col_2":"50"}}
Comparison with capacitance bridge
Frequency : 1 kHz
Uncertainty is not varying linearly within the range.
Approved on 07 February 2019
Institute service identifier : 25
CMC ID :
EURAMET-EM-BG-00000DU3-1
Impedance (up to the MHz range) ,
Inductance: self inductance, low values
:
0.01 mH to 1 mH
Fixed inductor
Relative expanded uncertainty
:
2.0E-2 H/H to 3.0E-4 H/H
Comparison with inductance bridge
Frequency : 1 kHz
Uncertainty is not varying linearly within the range
Approved on 06 August 2013
Institute service identifier : 26
CMC ID :
EURAMET-EM-BG-00000DUU-1