Comparison Display

CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 1 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

10 mV 1 kHz

D_i / (µV/V)

Participating institutes

CCEM-K11

CCEM-K11.1

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 20 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

10 mV 20 kHz

D_i / (µV/V)

Participating institutes

CCEM-K11

CCEM-K11.1

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 100 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

10 mV 100 kHz

D_i / (µV/V)

Participating institutes

CCEM-K11

CCEM-K11.1

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 1 MHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

10 mV 1 MHz

D_i / (µV/V)

Participating institutes

CCEM-K11

CCEM-K11.1

EUROMET.EM-K11

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 1 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

100 mV 1 kHz

D_i / (µV/V)

Participating institutes

CCEM-K11

CCEM-K11.1

SIM.EM-K11

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 20 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

100 mV 20 kHz

D_i / (µV/V)

Participating institutes

CCEM-K11

CCEM-K11.1

SIM.EM-K11

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 100 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

100 mV 100 kHz

D_i / (µV/V)

Participating institutes

CCEM-K11

CCEM-K11.1

SIM.EM-K11

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 1 MHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

100 mV 1 MHz

D_i / (µV/V)

Participating institutes

CCEM-K11

CCEM-K11.1

SIM.EM-K11

EUROMET.EM-K11

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 1 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

LAB_i	D_i	U_i
	µV/V	µV/V
PTB	-6	40
NPL	-4	29
VSL	-9	39
NMIA	0	11
INTI	13	25
NRC	8	35
A*STAR	-1	33
NIM	-41	78
SP	-2	20
NIST	6	38
JV	5	31
INRIM	-17	26
BEV	6	38
MKEH	1	26
IPQ	2	61
CEM	-5	45
MIRS/SIQ	0	74
MIKES	13	33
Trescal	-16	46
LNE	2	23
METAS	-30	38
UME	5	51
NMISA	-6	62
CMI	2	58
EIM	4	88
NPLI	-7	26
VNIIM	2	29
BIM	7	66

Participating institutes

CCEM-K11

CCEM-K11.1

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 20 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

LAB_i	D_i	U_i
	µV/V	µV/V
PTB	-13	41
NPL	-4	29
VSL	-7	39
NMIA	2	14
INTI	11	28
NRC	2	31
A*STAR	-2	36
NIM	-28	78
SP	-1	21
NIST	25	40
JV	11	32
INRIM	-18	25
BEV	0	38
MKEH	-3	26
IPQ	-6	60
CEM	-4	45
MIRS/SIQ	-12	73
MIKES	8	32
Trescal	-26	46
LNE	6	26
METAS	-42	37
UME	7	51
NMISA	17	60
CMI	1	62
EIM	-3	83
NPLI	-8	25
VNIIM	20	30
BIM	-2	69

Participating institutes

CCEM-K11

CCEM-K11.1

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 100 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

LAB_i	D_i	U_i
	µV/V	µV/V
PTB	-9	43
NPL	4	40
VSL	-5	48
NMIA	7	39
INTI	13	44
NRC	7	59
A*STAR	-9	42
NIM	1	95
SP	-3	30
NIST	-3	53
JV	19	73
INRIM	-32	45
BEV	-3	46
MKEH	-9	37
IPQ	-10	71
CEM	-2	65
MIRS/SIQ	-10	123
MIKES	-1	45
Trescal	-32	67
LNE	-5	33
METAS	-44	58
UME	-19	60
NMISA	2	139
CMI	1	84
EIM	39	90
NPLI	-22	30
VNIIM	62	69
BIM	-10	79

Participating institutes

CCEM-K11

CCEM-K11.1

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 1 MHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

LAB_i	D_i	U_i
	µV/V	µV/V
PTB	-44	100
NPL	-46	281
VSL	26	298
NMIA	3	102
INTI	-29	105
NRC	42	84
A*STAR	-42	369
NIM	138	184
SP	-24	94
NIST	19	151
JV	8	269
INRIM	-141	142
BEV	-49	148
MKEH	-172	233
IPQ	79	287
CEM	2	168
MIRS/SIQ/Metrology	31	754
MIKES	-38	147
Trescal	-126	207
METAS	-151	129
UME	-51	132
NMISA	-579	758
CMI	40	243
EIM	126	190
NPLI	-2	83
VNIIM	53	178

Participating institutes

CCEM-K11

CCEM-K11.1

EUROMET.EM-K11

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 1 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

LAB_i	D_i	U_i
	µV/V	µV/V
PTB	0.3	2.5
NPL	-5.1	8.9
VSL	-1.7	7.9
NMIA	-0.1	5.7
INTI	-0.1	9.9
NRC	0.7	4.8
A*STAR	-3.3	18.0
NIM	3.7	13.9
SP	0.5	6.5
NIST	-0.9	12.3
UTE	5.2	18.1
INMETRO	-0.8	12.8
CENAM	-1.3	25.1
JV	0.8	14.3
INRIM	-10.0	10.0
BEV	2.4	12.7
MKEH	1.6	8.0
IPQ	9.5	41.2
CEM	3.4	10.8
MIRS/SIQ	4.4	30.3
MIKES	1.4	6.2
Trescal	-8.7	8.5
LNE	2.6	7.5
METAS	-11.1	13.3
UME	1.1	13.6
NMISA	6.9	18.0
CMI	2.3	19.4
EIM	1.6	5.6
NPLI	-7.7	11.5
VNIIM	1.4	10.4
BIM	2.4	27.0

Participating institutes

CCEM-K11

CCEM-K11.1

SIM.EM-K11

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 20 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

LAB_i	D_i	U_i
	µV/V	µV/V
PTB	-0.3	4.3
NPL	-3.2	8.7
VSL	0.9	11.8
NMIA	2.9	6.7
INTI	0.9	9.8
NRC	-0.2	5.6
A*STAR	-4.2	23.9
NIM	-3.2	15.8
SP	0.3	6.5
NIST	-2.8	12.7
UTE	-1.1	18.2
INMETRO	-1.1	12.5
CENAM	-5.1	24.9
JV	0.3	15.6
INRIM	-8.4	10.4
BEV	0.4	14.1
MKEH	0.5	9.9
IPQ	6.1	48.3
CEM	-7.9	11.4
MIRS/SIQ	1.1	30.5
MIKES	0.2	7.8
Trescal	-9.0	9.1
LNE	0.5	9.1
METAS	-12.1	10.0
UME	5.0	15.1
NMISA	6.5	18.7
CMI	3.4	21.7
EIM	2.8	6.6
NPLI	-1.8	12.2
VNIIM	18.2	14.1
BIM	-0.6	27.7

Participating institutes

CCEM-K11

CCEM-K11.1

SIM.EM-K11

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 100 kHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

LAB_i	D_i	U_i
	µV/V	µV/V
PTB	-1.5	6.0
NPL	-2.6	12.7
VSL	-0.6	14.7
NMIA	-1.1	15.8
INTI	-0.2	20.8
NRC	3.5	6.6
A*STAR	-5.8	26.9
NIM	8.1	29.9
SP	-1.6	12.8
NIST	2.7	23.1
UTE	-2.5	38.0
INMETRO	-2.5	17.8
CENAM	1.1	26.0
JV	1.9	28.7
INRIM	-19.2	13.7
BEV	-2.6	18.9
MKEH	-5.3	18.7
IPQ	6.6	61.5
CEM	-11.4	31.1
MIRS/SIQ	-7.5	50.7
MIKES	-2.7	10.2
Trescal	-14.6	14.5
LNE	-4.5	15.4
METAS	-16.0	15.4
UME	-8.7	18.0
NMISA	9.9	35.8
CMI	-4.2	30.1
EIM	-4.9	9.4
NPLI	-19.4	14.4
VNIIM	66.6	34.0
BIM	-10.6	35.7

Participating institutes

CCEM-K11

CCEM-K11.1

SIM.EM-K11

EUROMET.EM-K11

EURAMET.EM-K11.1

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 1 MHz

Degrees of equivalence represented by D_i = (x_I - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence, both expressed in µV/V.

LAB_i	D_i	U_i
	µV/V	µV/V
PTB	-28	50
NPL	-18	67
VSL	-1	101
NMIA	13	77
INTI	-30	62
NRC	13	32
A*STAR	-6	88
NIM	72	99
SP	7	63
NIST	1	77
UTE	-34	111
INMETRO	19	105
CENAM	0	57
JV	11	111
INRIM	-59	71
BEV	-29	76
MKEH	-44	155
IPQ	-37	92
CEM	-47	92
MIRS/SIQ	-56	403
MIKES	-31	56
Trescal	-58	62
METAS	-57	74
UME	-23	61
NMISA	194	193
CMI	-57	92
EIM	-40	50
NPLI	106	58
VNIIM	229	127

Participating institutes

CCEM-K11

CCEM-K11.1

SIM.EM-K11

EUROMET.EM-K11

CCEM-K11.1

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Information & contact
Participants

Metrology area, Sub-field	Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Description	AC/DC voltage transfer difference at low voltages
Time of measurements	2004 - 2005
Status	Approved for equivalence

Final Reports of the comparisons	Metrologia, 2007, 44, Tech. Suppl., 01008
Measurand	AC/DC transfer difference
Parameters	Voltage: 10 mV and 100 mV Frequency: 1 kHz to 1 MHz
Transfer device	AC/DC transfer standard Fluke 792A

Comparison type	Key Comparison
Consultative Committee	CCEM (Consultative Committee for Electricity and Magnetism)
Conducted by	CCEM (Consultative Committee for Electricity and Magnetism)
Comments	This is a bilateral follow-up of CCEM-K11. The same travelling standard and technical protocol are used. CCEM-K11 and CCEM-K11.1 results published on 23 May 2007 EUROMET.EM-K11 results and SIM.EM-K11 results are linked to those of CCEM-K11 and CCEM-K11.1 AC/DC voltage transfer standards
Pilot institute	RISE Research Institutes of Sweden AB Sweden
Contact person	Karl-Erik Rydler +46 105165401

Pilot laboratory
RISE	Research Institutes of Sweden AB, Sweden, EURAMET

NIST	National Institute of Standards and Technology, United States, SIM

SP	Technical Research Institute of Sweden from 2017 Research Institutes of Sweden AB, Sweden, EURAMET

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 1 kHz

The key comparison reference value x_R is calculated as the weighted mean of the results of all participants in CCEM-K11. The value of the mean of the seven results of SP is used for the computation of x_R, see equations 10 and 11 of the Final Report. The standard uncertainty u_R of x_R is computed as explained in section 6.1.4 of the Final Report.

x_R = 1.6 µV/V 2u_R = 9.2 µV/V

The degree of equivalence of laboratory i relative to the key comparison reference value x_R is given by a pair of terms, both expressed in µV/V:

D_i = (x_i - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence where U_i = 2 u_i.

Linking CCEM-K11.1 to CCEM-K11

SP (Sweden) provides the link between the key comparison CCEM-K11.1 and CCEM-K11, having participated in both comparisons.

Linking EUROMET.EM-K11 to CCEM-K11

SP (Sweden), PTB (Germany) and VSL (Netherlands) provide the link between the key comparison EUROMET.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking EURAMET.EM-K11.1 to CCEM-K11

BEV (Austria) provides the link between the key comparison EURAMET.EM-K11.1 and CCEM-K11, via their participation in EUROMET.EM-K11.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 20 kHz

x_R = 1.0 µV/V 2u_R = 10.4 µV/V

The degree of equivalence of laboratory i relative to the key comparison reference value x_R is given by a pair of terms, both expressed in µV/V:

D_i = (x_i - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence where U_i = 2 u_i.

Linking CCEM-K11.1 to CCEM-K11

SP (Sweden) provides the link between the key comparison CCEM-K11.1 and CCEM-K11, having participated in both comparisons.

Linking EUROMET.EM-K11 to CCEM-K11

SP (Sweden), PTB (Germany) and VSL (Netherlands) provide the link between the key comparison EUROMET.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking EURAMET.EM-K11.1 to CCEM-K11

BEV (Austria) provides the link between the key comparison EURAMET.EM-K11.1 and CCEM-K11, via their participation in EUROMET.EM-K11.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 100 kHz

x_R = 2.8 µV/V 2u_R = 15.8 µV/V

The degree of equivalence of laboratory i relative to the key comparison reference value x_R is given by a pair of terms, both expressed in µV/V:

D_i = (x_i - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence where U_i = 2 u_i.

Linking CCEM-K11.1 to CCEM-K11

SP (Sweden) provides the link between the key comparison CCEM-K11.1 and CCEM-K11, having participated in both comparisons.

Linking EUROMET.EM-K11 to CCEM-K11

SP (Sweden), PTB (Germany) and VSL (Netherlands) provide the link between the key comparison EUROMET.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking EURAMET.EM-K11.1 to CCEM-K11

BEV (Austria) provides the link between the key comparison EURAMET.EM-K11.1 and CCEM-K11, via their participation in EUROMET.EM-K11.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 1 MHz

x_R = 24 µV/V 2u_R = 49 µV/V

The degree of equivalence of laboratory i relative to the key comparison reference value x_R is given by a pair of terms, both expressed in µV/V:

D_i = (x_i - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence where U_i = 2 u_i.

Linking CCEM-K11.1 to CCEM-K11

SP (Sweden) provides the link between the key comparison CCEM-K11.1 and CCEM-K11, having participated in both comparisons.

Linking EUROMET.EM-K11 to CCEM-K11

SP (Sweden), PTB (Germany) and VSL (Netherlands) provide the link between the key comparison EUROMET.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking EURAMET.EM-K11.1 to CCEM-K11

BEV (Austria) provides the link between the key comparison EURAMET.EM-K11.1 and CCEM-K11, via their participation in EUROMET.EM-K11.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 1 kHz

x_R = -0.5 µV/V 2u_R = 2.3 µV/V

The degree of equivalence of laboratory i relative to the key comparison reference value x_R is given by a pair of terms, both expressed in µV/V:

D_i = (x_i - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence where U_i = 2 u_i.

Linking CCEM-K11.1 to CCEM-K11

SP (Sweden) provides the link between the key comparison CCEM-K11.1 and CCEM-K11, having participated in both comparisons.

Linking EUROMET.EM-K11 to CCEM-K11

SP (Sweden), PTB (Germany) and VSL (Netherlands) provide the link between the key comparison EUROMET.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking SIM.EM-K11 to CCEM-K11

INTI (Argentina) and NRC (Canada) provide the link between the key comparison SIM.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking EURAMET.EM-K11.1 to CCEM-K11

BEV (Austria) provides the link between the key comparison EURAMET.EM-K11.1 and CCEM-K11, via their participation in EUROMET.EM-K11.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 20 kHz

x_R = -0.3 µV/V 2u_R = 2.9 µV/V

The degree of equivalence of laboratory i relative to the key comparison reference value x_R is given by a pair of terms, both expressed in µV/V:

D_i = (x_i - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence where U_i = 2 u_i.

Linking CCEM-K11.1 to CCEM-K11

SP (Sweden) provides the link between the key comparison CCEM-K11.1 and CCEM-K11, having participated in both comparisons.

Linking EUROMET.EM-K11 to CCEM-K11

SP (Sweden), PTB (Germany) and VSL (Netherlands) provide the link between the key comparison EUROMET.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking SIM.EM-K11 to CCEM-K11

INTI (Argentina) and NRC (Canada) provide the link between the key comparison SIM.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking EURAMET.EM-K11.1 to CCEM-K11

BEV (Austria) provides the link between the key comparison EURAMET.EM-K11.1 and CCEM-K11, via their participation in EUROMET.EM-K11.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 100 kHz

x_R = 1.6 µV/V 2u_R = 4.5 µV/V

The degree of equivalence of laboratory i relative to the key comparison reference value x_R is given by a pair of terms, both expressed in µV/V:

D_i = (x_i - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence where U_i = 2 u_i.

Linking CCEM-K11.1 to CCEM-K11

SP (Sweden) provides the link between the key comparison CCEM-K11.1 and CCEM-K11, having participated in both comparisons.

Linking EUROMET.EM-K11 to CCEM-K11

SP (Sweden), PTB (Germany) and VSL (Netherlands) provide the link between the key comparison EUROMET.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking SIM.EM-K11 to CCEM-K11

INTI (Argentina) and NRC (Canada) provide the link between the key comparison SIM.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking EURAMET.EM-K11.1 to CCEM-K11

BEV (Austria) provides the link between the key comparison EURAMET.EM-K11.1 and CCEM-K11, via their participation in EUROMET.EM-K11.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 1 MHz

x_R = -7 µV/V 2u_R = 27 µV/V

The degree of equivalence of laboratory i relative to the key comparison reference value x_R is given by a pair of terms, both expressed in µV/V:

D_i = (x_i - x_R)/x_R and its expanded uncertainty U_i at a 95 % level of confidence where U_i = 2 u_i.

Linking CCEM-K11.1 to CCEM-K11

SP (Sweden) provides the link between the key comparison CCEM-K11.1 and CCEM-K11, having participated in both comparisons.

Linking EUROMET.EM-K11 to CCEM-K11

SP (Sweden), PTB (Germany) and VSL (Netherlands) provide the link between the key comparison EUROMET.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking SIM.EM-K11 to CCEM-K11

INTI (Argentina) and NRC (Canada) provide the link between the key comparison SIM.EM-K11 and CCEM-K11, having participated in both comparisons.

Linking EURAMET.EM-K11.1 to CCEM-K11

BEV (Austria) provides the link between the key comparison EURAMET.EM-K11.1 and CCEM-K11, via their participation in EUROMET.EM-K11.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 1 kHz

x_i measurement result as obtained by laboratory i, Lab_i

U_Labi expanded uncertainty of x_i at 95 % level of confidence (k = 2)

CCEM-K11

CCEM-K11.1

For initial results obtained in EUOMET.EM-K1 and EURAMET.EM-K11.1, see final reports.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 20 kHz

x_i measurement result as obtained by laboratory i, Lab_i

U_Labi expanded uncertainty of x_i at 95 % level of confidence (k = 2)

CCEM-K11

CCEM-K11.1

For initial results obtained in EUOMET.EM-K1 and EURAMET.EM-K11.1, see final reports.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 100 kHz

x_i measurement result as obtained by laboratory i, Lab_i

U_Labi expanded uncertainty of x_i at 95 % level of confidence (k = 2)

CCEM-K11

CCEM-K11.1

For initial results obtained in EUOMET.EM-K1 and EURAMET.EM-K11.1, see final reports.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 10 mV

FREQUENCY 1 MHz

x_i measurement result as obtained by laboratory i, Lab_i

U_Labi expanded uncertainty of x_i at 95 % level of confidence (k = 2)

CCEM-K11

CCEM-K11.1

For initial results obtained in EUOMET.EM-K1 and EURAMET.EM-K11.1, see final reports.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 1 kHz

x_i measurement result as obtained by laboratory i, Lab_i

U_Labi expanded uncertainty of x_i at 95 % level of confidence (k = 2)

CCEM-K11

CCEM-K11.1

For initial results obtained in EUOMET.EM-K1, SIM.EM-K11 and EURAMET.EM-K11.1, see final reports.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 20 kHz

x_i measurement result as obtained by laboratory i, Lab_i

U_Labi expanded uncertainty of x_i at 95 % level of confidence (k = 2)

CCEM-K11

CCEM-K11.1

For initial results obtained in EUOMET.EM-K1, SIM.EM-K11 and EURAMET.EM-K11.1, see final reports.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 100 kHz

x_i measurement result as obtained by laboratory i, Lab_i

U_Labi expanded uncertainty of x_i at 95 % level of confidence (k = 2)

CCEM-K11

CCEM-K11.1

For initial results obtained in EUOMET.EM-K1, SIM.EM-K11 and EURAMET.EM-K11.1, see final reports.

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CCEM-K11, CCEM-K11.1, EUROMET.EM-K11, SIM.EM-K11 and EURAMET.EM-K11.1

MEASURAND AC/DC voltage transfer difference

NOMINAL VOLTAGE 100 mV

FREQUENCY 1 MHz

x_i measurement result as obtained by laboratory i, Lab_i

U_Labi expanded uncertainty of x_i at 95 % level of confidence (k = 2)

CCEM-K11

CCEM-K11.1

For initial results obtained in EUOMET.EM-K1, SIM.EM-K11 and EURAMET.EM-K11.1, see final reports.

KCDB

CIPM MRA

CLASSIFICATION OF SERVICES

Key and supplementary comparisons - Print out