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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)
Estonia, AS METROSERT (Central Office of Metrology)
Mass ,
Mass
:
1 kg to 5 kg
Mass standard
Absolute expanded uncertainty
:
0.1 mg to 1.5 mg
Comparison in air
Temperature : 18 °C to 23 °C
Relative humidity : 40 % to 60 %
Uncertainty scales with measurand level The volume of the mass standards is known
Approved on 24 October 2017
Institute service identifier : AS METROSERT/210340
CMC ID :
EURAMET-M-EE-0000098K-1
DC resistance ,
DC resistance standards and sources: low values
:
0.1 mΩ to 1000 mΩ
Fixed resistor
Relative expanded uncertainty
:
1 µΩ/Ω to 1.0E2 µΩ/Ω
Uncertainty table
{"row_1":{"col_1":"","col_2":"Expanded uncertainty / (µΩ/Ω)"},"row_2":{"col_1":"0.0001 Ω","col_2":"100"},"row_3":{"col_1":"0.001 Ω","col_2":"5"},"row_4":{"col_1":"0.01 Ω","col_2":"2"},"row_5":{"col_1":"0.1 Ω","col_2":"1"},"row_6":{"col_1":"1 Ω","col_2":"1"}}
DCC bridge, range extender
Oil temperature : 20 °C to 25 °C
Measurement current : 30 mA to 100 A
Approved on 07 February 2019
Institute service identifier : 206120, 206100
CMC ID :
EURAMET-EM-EE-00000E3T-1
Linear dimensions ,
Line standards
:
1.00E-3 m to 2 m
Machinist scale, line spacing, L
Absolute expanded uncertainty
:
6.0E-2 mm to 9.0E-2 mm
0.06 mm + 15E-06 L
Tape bench and comparison to laser interferometer
Material : steel
Approved on 14 September 2018
Institute service identifier : 212250
CMC ID :
EURAMET-L-EE-00000C2F-2
AC voltage (up to the MHz range) ,
AC voltage up to 1000 V: sources
:
0.1 V to 1000 V
Multifunction calibrator
Relative expanded uncertainty
:
2.0E-2 mV/V to 0.79 mV/V
Uncertainty table
{"row_1": {"col_1":"<strong>Voltage<\/strong>", "col_2":"<strong>10 Hz<\/strong>", "col_3":"<strong>55 Hz<\/strong>", "col_4":"<strong>110 Hz<\/strong>", "col_5":"<strong>300 Hz<\/strong>", "col_6":"<strong>1 kHz<\/strong>", "col_7":"<strong>10 kHz<\/strong>", "col_8":"<strong>30 kHz<\/strong>", "col_9":"<strong>50 kHz<\/strong>", "col_10":"<strong>80 kHz<\/strong>", "col_11":"<strong>100 kHz<\/strong>", "col_12":"<strong>300 kHz<\/strong>", "col_13":"<strong>500 kHz<\/strong>", "col_14":"<strong>700 kHz<\/strong>", "col_15":"<strong>1 MHz<\/strong>"}, "row_2": {"col_1":"100 mV", "col_2":"0.06", "col_3":"0.03", "col_4":"0.03", "col_5":"0.03", "col_6":"0.03", "col_7":"0.03", "col_8":"0.04", "col_9":"0.03", "col_10":"0.03", "col_11":"0.03", "col_12":"0.11", "col_13":"0.21", "col_14":"0.39", "col_15":"0.79"}, "row_3": {"col_1":"1 V", "col_2":"0.04", "col_3":"0.02", "col_4":"0.02", "col_5":"0.02", "col_6":"0.02", "col_7":"0.02", "col_8":"0.02", "col_9":"0.02", "col_10":"0.02", "col_11":"0.02", "col_12":"0.16", "col_13":"0.26", "col_14":"0.42", "col_15":"0.42"}, "row_4": {"col_1":"10 V", "col_2":"0.04", "col_3":"0.02", "col_4":"0.02", "col_5":"0.02", "col_6":"0.02", "col_7":"0.02", "col_8":"0.02", "col_9":"0.02", "col_10":"0.02", "col_11":"0.02", "col_12":"0.17", "col_13":"0.26", "col_14":"0.42", "col_15":"0.42"}, "row_5": {"col_1":"100 V", "col_2":"0.04", "col_3":"0.02", "col_4":"0.02", "col_5":"0.02", "col_6":"0.02", "col_7":"0.02", "col_8":"0.02", "col_9":"0.02", "col_10":"0.03", "col_11":"0.04", "col_12":"-", "col_13":"-", "col_14":"-", "col_15":"-"}, "row_6": {"col_1":"200 V", "col_2":"0.04", "col_3":"0.03", "col_4":"0.03", "col_5":"0.03", "col_6":"0.03", "col_7":"0.04", "col_8":"0.05", "col_9":"-", "col_10":"-", "col_11":"-", "col_12":"-", "col_13":"-", "col_14":"-", "col_15":"-"}, "row_7": {"col_1":"1000 V", "col_2":"0.04", "col_3":"0.03", "col_4":"0.03", "col_5":"0.03", "col_6":"0.03", "col_7":"0.04", "col_8":"0.05", "col_9":"-", "col_10":"-", "col_11":"-", "col_12":"-", "col_13":"-", "col_14":"-", "col_15":"-"}}
AC/DC transfer standard
Frequency : 10 Hz to 1 MHz
Approved on 07 February 2019
Institute service identifier : 202050
CMC ID :
EURAMET-EM-EE-00000E43-2
AC current ,
AC current up to 100 A: meters
:
0.01 A to 10 A
AC ammeter, multimeter
Relative expanded uncertainty
:
3.4E1 µA/A to 1.2E2 µA/A
Uncertainty table
{"row_1": {"col_1":"<strong>Current<\/strong>", "col_2":"<strong>10 Hz<\/strong>", "col_3":"<strong>53 Hz<\/strong>", "col_4":"<strong>300 Hz<\/strong>", "col_5":"<strong>1 kHz<\/strong>", "col_6":"<strong>5 kHz<\/strong>", "col_7":"<strong>10 kHz<\/strong>"}, "row_2": {"col_1":"10 mA", "col_2":"39", "col_3":"34", "col_4":"34", "col_5":"34", "col_6":"46", "col_7":"46"}, "row_3": {"col_1":"100 mA", "col_2":"38", "col_3":"37", "col_4":"36", "col_5":"36", "col_6":"42", "col_7":"42"}, "row_4": {"col_1":"1 A", "col_2":"38", "col_3":"37", "col_4":"36", "col_5":"36", "col_6":"42", "col_7":"59"}, "row_5": {"col_1":"5 A", "col_2":"70", "col_3":"70", "col_4":"67", "col_5":"67", "col_6":"93", "col_7":"120"}, "row_6": {"col_1":"10 A", "col_2":"70", "col_3":"67", "col_4":"67", "col_5":"67", "col_6":"93", "col_7":"120"}}
Characterised AC current source
Frequency : 10 Hz to 10 kHz
Approved on 07 February 2019
Institute service identifier : 202050
CMC ID :
EURAMET-EM-EE-00000E46-2
AC current ,
AC current up to 100 A: sources
:
0.01 A to 10 A
Multifunction calibrator
Relative expanded uncertainty
:
3.4E1 µA/A to 1.2E2 µA/A
Uncertainty table
{"row_1": {"col_1":"<strong>Current<\/strong>", "col_2":"<strong>10 Hz<\/strong>", "col_3":"<strong>53 Hz<\/strong>", "col_4":"<strong>300 Hz<\/strong>", "col_5":"<strong>1 kHz<\/strong>", "col_6":"<strong>5 kHz<\/strong>", "col_7":"<strong>10 kHz<\/strong>"}, "row_2": {"col_1":"10 mA", "col_2":"39", "col_3":"34", "col_4":"34", "col_5":"34", "col_6":"46", "col_7":"46"}, "row_3": {"col_1":"100 mA", "col_2":"38", "col_3":"37", "col_4":"36", "col_5":"36", "col_6":"42", "col_7":"42"}, "row_4": {"col_1":"1 A", "col_2":"38", "col_3":"37", "col_4":"36", "col_5":"36", "col_6":"42", "col_7":"59"}, "row_5": {"col_1":"5 A", "col_2":"70", "col_3":"70", "col_4":"67", "col_5":"67", "col_6":"93", "col_7":"120"}, "row_6": {"col_1":"10 A", "col_2":"70", "col_3":"67", "col_4":"67", "col_5":"67", "col_6":"93", "col_7":"120"}}
AC/DC transfer standard
Frequency : 10 Hz to 10 kHz
Approved on 07 February 2019
Institute service identifier : 202050
CMC ID :
EURAMET-EM-EE-00000E45-2
DC voltage (up to 1100 V) ,
DC voltage sources: low values
:
1.00E-3 V to 10 V
DC voltage source, multifunction calibrator
Absolute expanded uncertainty
:
0.1 µV to 1.2E1 µV
Uncertainty table
{"row_1": {"col_1":"", "col_2":"Expanded uncertainty"}, "row_2": {"col_1":"1 mV to 100 mV", "col_2":"0.1 + 5<em>U<\/em>"}, "row_3": {"col_1":"100 mV to 1 V", "col_2":"0.5 + 1<em>U<\/em>"}, "row_4": {"col_1":"1 V to 10 V", "col_2":"2 + 1<em>U<\/em>"}, "row_5": {"col_1":"10 V to 100 V", "col_2":"3<em>U<\/em>"}, "row_6": {"col_1":"100 V to 1000 V", "col_2":"4<em>U<\/em>"}}
Voltage ratio measurement
Approved on 07 February 2019
Institute service identifier : 202010, 202050
CMC ID :
EURAMET-EM-EE-00000E3P-3
DC voltage (up to 1100 V) ,
DC voltage sources
:
1 V to 10 V
Solid state voltage standard, standard cell
Relative expanded uncertainty
:
1 µV/V
Uncertainty table
{"row_1":{"col_1":"","col_2":"Expanded uncertainty / (µV/V)"},"row_2":{"col_1":"10 V","col_2":"1"},"row_3":{"col_1":"1.018 V","col_2":"1"},"row_4":{"col_1":"1 V","col_2":"1"}}
Comparison with group of solid state voltage standards
Nominal value : 1 V, 1.018 V, 10 V
Approved on 07 February 2019
Institute service identifier : 202010
CMC ID :
EURAMET-EM-EE-00000E3S-1
DC resistance ,
DC resistance standards and sources: high values
:
10 MΩ to 1.00E4 MΩ
Fixed resistor
Relative expanded uncertainty
:
1.2E1 µΩ/Ω to 2.5E2 µΩ/Ω
Uncertainty table
{"row_1":{"col_1":"","col_2":"Expanded uncertainty / (µΩ/Ω)"},"row_2":{"col_1":"10 MΩ","col_2":"12"},"row_3":{"col_1":"100 MΩ","col_2":"19"},"row_4":{"col_1":"1 GΩ","col_2":"40"},"row_5":{"col_1":"10 GΩ","col_2":"250"}}
Series-parallel build-up resistors and substitution measurement
Air temperature : 20 °C to 25 °C
Approved on 07 February 2019
Institute service identifier : 206120
CMC ID :
EURAMET-EM-EE-00000E3V-1
Mass ,
Mass
:
1 mg to 100 mg
Mass standard
Absolute expanded uncertainty
:
2 µg to 4 µg
Comparison in air
Temperature : 18 °C to 23 °C
Relative humidity : 40 % to 60 %
Uncertainty scales with measurand level The volume of the mass standards is known
Approved on 24 October 2017
Institute service identifier : AS METROSERT/210284
CMC ID :
EURAMET-M-EE-0000098F-1
Mass ,
Mass
:
1 g to 10 g
Mass standard
Absolute expanded uncertainty
:
3 µg to 6 µg
Comparison in air
Temperature : 18 °C to 23 °C
Relative humidity : 40 % to 60 %
Uncertainty scales with measurand level The volume of the mass standards is known
Approved on 24 October 2017
Institute service identifier : AS METROSERT/210284
CMC ID :
EURAMET-M-EE-0000098H-1
Linear dimensions ,
End standards
:
0.5 mm to 100 mm
Gauge block: central length, L
Absolute expanded uncertainty
:
5.4E-2 µm to 0.11 µm
Q[0.054 µm, 0.91E-06 L]
Mechanical comparison
Material : steel, tungsten carbide, zirconia ceramic
Approved on 14 September 2018
Institute service identifier : 212610, 212611
CMC ID :
EURAMET-L-EE-00000C2C-2
Mass ,
Mass
:
0.1 kg to 1 kg
Mass standard
Absolute expanded uncertainty
:
1.5E1 µg to 1.0E2 µg
Comparison in air
Temperature : 18 °C to 23 °C
Relative humidity : 40 % to 60 %
Uncertainty scales with measurand level The volume of the mass standards is known
Approved on 24 October 2017
Institute service identifier : AS METROSERT/210284
CMC ID :
EURAMET-M-EE-0000098J-1
DC voltage (up to 1100 V) ,
DC voltage meters: intermediate values
:
1.00E-3 V to 1000 V
DC voltmeter, multimeter
Absolute expanded uncertainty
:
1.0E-4 mV to 4 mV
Uncertainty table
{"row_1":{"col_1":"","col_2":"Expanded uncertainty / (µV/V)"},"row_2":{"col_1":"0 mV to 100 mV","col_2":"0.1 + 5<I>U</I>"},"row_3":{"col_1":"100 mV to 1 V","col_2":"0.5 + 1<I>U</I>"},"row_4":{"col_1":"1 V to 10 V","col_2":"2 + 1<I>U</I>"},"row_5":{"col_1":"10 V to 100 V","col_2":"3<I>U</I>"},"row_6":{"col_1":"100 V to 1000 V","col_2":"4<I>U</I>"}}
Voltage ratio measurement
Approved on 07 February 2019
Institute service identifier : 211302
CMC ID :
EURAMET-EM-EE-00000E3R-1
DC current (up to 100 A) ,
DC current sources: intermediate values
:
1 mA to 1.00E4 mA
Current generator, multifunction calibrator
Relative expanded uncertainty
:
5 µA/A to 8 µA/A
Uncertainty table
{"row_1":{"col_1":"","col_2":"Expanded uncertainty / (µA/A)"},"row_2":{"col_1":"1 mA","col_2":"5"},"row_3":{"col_1":"10 mA","col_2":"8"},"row_4":{"col_1":"100 mA","col_2":"8"},"row_5":{"col_1":"1 A","col_2":"8"},"row_6":{"col_1":"10 A","col_2":"8"}}
Voltage drop across a resistor
Approved on 07 February 2019
Institute service identifier : 202050
CMC ID :
EURAMET-EM-EE-00000E40-1
DC current (up to 100 A) ,
DC current meters: intermediate values
:
1 mA to 1.00E4 mA
Multimeter
Relative expanded uncertainty
:
1.0E1 µA/A to 2.0E1 µA/A
Uncertainty table
{"row_1":{"col_1":"","col_2":"Expanded uncertainty / (µA/A)"},"row_2":{"col_1":"1 mA","col_2":"10"},"row_3":{"col_1":"10 mA","col_2":"10"},"row_4":{"col_1":"100 mA","col_2":"10"},"row_5":{"col_1":"1 A","col_2":"12"},"row_6":{"col_1":"10 A","col_2":"20"}}
DC current source
Approved on 07 February 2019
Institute service identifier : 202050
CMC ID :
EURAMET-EM-EE-00000E42-1
Linear dimensions ,
Line standards
:
1.00E-3 m to 120 m
Engineer or surveyor tape, line spacing, L
Absolute expanded uncertainty
:
6.0E-2 mm to 1.9 mm
0.06 mm + 15E-06 L
Tape bench and comparison to laser interferometer
Material : steel
Approved on 14 September 2018
Institute service identifier : 212270; 212290; 212300
CMC ID :
EURAMET-L-EE-00000C2E-2
DC voltage (up to 1100 V) ,
DC voltage sources: intermediate values
:
10 V to 1000 V
DC voltage source, multifunction calibrator
Absolute expanded uncertainty
:
1.2E-2 mV to 4 mV
Uncertainty table
{"row_1": {"col_1":"", "col_2":"Expanded uncertainty"}, "row_2": {"col_1":"1 mV to 100 mV", "col_2":"0.1 + 5<em>U<\/em>"}, "row_3": {"col_1":"100 mV to 1 V", "col_2":"0.5 + 1<em>U<\/em>"}, "row_4": {"col_1":"1 V to 10 V", "col_2":"2 + 1<em>U<\/em>"}, "row_5": {"col_1":"10 V to 100 V", "col_2":"3<em>U<\/em>"}, "row_6": {"col_1":"100 V to 1000 V", "col_2":"4<em>U<\/em>"}}
Voltage ratio measurement
Approved on 07 February 2019
Institute service identifier : 202010, 202050
CMC ID :
EURAMET-EM-EE-00000E3Q-2
DC current (up to 100 A) ,
DC current sources: low values
:
10 µA to 100 µA
Current generator, multifunction calibrator
Relative expanded uncertainty
:
5 µA/A to 5.0E1 µA/A
Uncertainty table
{"row_1":{"col_1":"","col_2":"Expanded uncertainty / (µA/A)"},"row_2":{"col_1":"1 µA","col_2":"50"},"row_3":{"col_1":"10 µA","col_2":"5"}}
Voltage drop across a resistor
Approved on 07 February 2019
Institute service identifier : 202050
CMC ID :
EURAMET-EM-EE-00000E3Z-1
Mass ,
Mass
:
10 g to 100 g
Mass standard
Absolute expanded uncertainty
:
6 µg to 1.5E1 µg
Comparison in air
Temperature : 18 °C to 23 °C
Relative humidity : 40 % to 60 %
Uncertainty scales with measurand level The volume of the mass standards is known
Approved on 24 October 2017
Institute service identifier : AS METROSERT/210284
CMC ID :
EURAMET-M-EE-0000098I-1
