UTC(NIM)

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Address: No.18,Bei San Huan
Dong Lu,Chaoyang
Dist,Beijing,P.R.China, 100013

ws@nim.ac.cn
Tel:+86-10-64525678

 

Electricity and Magnetism

Sub-No

Field

Comparison inentifier

Description

Start Year

Finish Year

Comparison type

Field

Parameter(s)

Status

Pliot

Publish Year

1

EM

 APMP.EM- K4

capacitors

1992

1994

K

 Electricity and Magnetism, Capacitance

Capacitance: 10 pF

 Frequency: 1592 Hz

 Approved for provisional equivalence

KRISS

 

2

EM

  APMP.EM- K4.1

capacitors

2004

2005

K

 Electricity and Magnetism, Capacitance

Capacitance: 10 pF 

 Frequency: 1592 Hz

Approved for equivalence, Results available

NMIA

2009

3

EM

  APMP.EM- S1

capacitors

1992

1994

S

 Electricity and Magnetism, Capacitance

Capacitance: 100 pF, 1 nF; 

Frequency: 1.592 kHz, 1 kHz

Published

KRISS

 

4

EM

  APMP.EM- S7

capacitors

2003

2006

S

 Electricity and Magnetism, Capacitance

Capacitance: 100 pF;     Frequency: 1.592 kHz, 1 kHz

Approved and published

NMIA

2008

5

EM

  APMP.EM.BIPM- K11

DC voltage, Zener diode

1996

1997

K

 Electricity and Magnetism, DC Voltage and Current

DC voltage: 1.018 V and 10 V

Approved for provisional equivalence

SPRING Singapore

 

6

EM

  BIPM.EM- K10.a

DC voltage, Josephson standards

1991

1991

K

Electricity and Magnetism, DC Voltage and Current

DC voltage: 1.018 V

approved for equivalence

BIPM

 

7

EM

  CCEM- K1

resistance standards

1990

1991

K

 Electricity and Magnetism, Resistance

Resistance: 1 ohm and 10 kiloohms

Approved for provisional equivalence

BIPM

 

8

EM

  CCEM- K10

Comparison of resistance standards

2001

2003

K

 Electricity and Magnetism, Resistance

Resistance: 100 ohms

Approved for equivalence, Results available

PTB

2007

9

EM

  CCEM- K11

AC/DC voltage transfer difference at low voltages

2001

2003

K

 Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer

Voltage: 10 mV and 100 mV

Frequency: 1 kHz to 1 MHz

Approved for equivalence, Results available

SP(Sweden)

2007

10

EM

  CCEM- K2

Comparison of resistance standards

1996

2000

K

 Electricity and Magnetism, Resistance

Resistance: 10 megaohms and 1 gigaohm                          Voltage: 10 V, 50 V, 91 V or 100 V

Approved for equivalence, Results available

NIST

 

11

EM

  CCEM- K3

Comparison of inductors

1989

1999

K

 Electricity and Magnetism, Inductance

Inductance: 10 mH

 Frequency: 1 kHz

Approved for equivalence, Results available

PTB

 

12

EM

  CCEM- K4

Comparison of capacitors

1996

1998

K

 Electricity and Magnetism, Capacitance

Capacitance, 10 pF

 Frequency: 1592 Hz

Approved for equivalence, Results available

NIST

 

13

EM

  CCEM- K5

AC power at 50/60 Hz

1996

2000

K

 Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer

Power factor: 1.0, 0.5 Lead, 0.5 Lag, 0.0 Lead, 0.0 Lag

Approved for equivalence, Results available

NIST

 

14

EM

  CCEM- K6.a

Comparison of AC/DC voltage transfer standards

1993

1999

K

 Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer

Voltage: 3 V                     Frequency: 1 kHz, 20 kHz, 100 kHz and 1 MHz

Approved for equivalence, Results available

PTB

 

15

EM

  CCEM- K6.b

Comparison of AC/DC voltage transfer standards

1995

1999

K

 Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer

Voltage: 500 V to 1000 V

Frequency: 50 kHz to 100 kHz

Activity transferred to CCEM-K9

BNM-LNE

 

16

EM

  CCEM- K7

AC voltage ratio

1999

2003

K

 Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer

Frequency: 1 kHz

Approved for equivalence, Results available

NPL

 

17

EM

  CCEM- K8

Comparison of DC voltage ratios

1999

2001

K

 Electricity and Magnetism, DC Voltage and Current

Ratio: 1000 V / 10 V and 100 V / 10 V

Approved for equivalence, Results available

IEN

 

18

EM

  CCEM- K9

Comparison of high voltage AC/DC converters

2000

2002

K

 Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer

Voltage: 1000 V, 500 V and 200 V

Frequency: 1 kHz, 10 kHz, 20 kHz, 50 kHz and 100 kHz

Approved for equivalence, Results available

LNE

2006

19

EM

  CCEM.M- K1

Comparison of low frequency magnetic flux density

2001

2003

K

 Electricity and Magnetism, Magnetism

Frequency: DC to 20 kHz

Approved for equivalence, Results available

PTB

 

20

EM

APMP.EM- K10

Resistance standards

2008

 

K

Electricity and Magnetism, Resistance

Resistance: 100 ohms

Planned

NIM

 

21

EM

APMP.EM- K8

 DC voltage ratios

2008

 

K

Electricity and Magnetism, DC Voltage and Current

Ratio: 1000 V / 10 V and 100 V / 10 V

Planned

NIM

 

22

EM

APMP.EM- K2

Resistance standards

2010

2011

K

 Electricity and Magnetism, Resistance

Resistance: 10 megaohms and 1 gigaohm

In progress

KRISS

 

23

EM

EURAMET.EM- S36

Calibration of high voltage partial discharge measurement systems

2012

2014

S

 Electricity and Magnetism, High voltage and current

 

Planned

SP

 

24

EM

APMP.EM- S14

Earth-level DC magnetic flux density

2013

__

S

Electricity and Magnetism, Magnetism

 

Protocol complete

VNIM

 

RF

25

RF

  CCEM.RF- K13.CL

Voltage measurements

 

 

K

 Electricity and Magnetism, Radio frequencies

Voltage:1mV

    Frequency: 30 MHz

Approved for provisional equivalence

PTB

 

26

RF

  CCEM.RF- K15.CL

Attenuation measurements

 

 

K

 Electricity and Magnetism, Radio frequencies

Frequency: 30 MHz

Approved for provisional equivalence

PTB

 

27

RF

  CCEM.RF- K16.CL

Measurement of reflection coefficient

 

 

K

 Electricity and Magnetism, Radio frequencies

Frequency: 500 MHz, 3 GHz and 7 GHz

Approved for provisional equivalence

PTB

 

28

RF

  CCEM.RF- K19.CL

Attenuation in a 50 ohm coaxial line

2001

2005

K

 Electricity and Magnetism, Radio frequencies

Frequency: 60 MHz and 5 GHz

Approved for equivalence, Results available

NPL

2009

29

RF

  CCEM.RF- K2.W

Noise power in waveguide

1985

1997

K

 Electricity and Magnetism, Radio frequencies

Frequency: 9 GHz, 10.5 GHz and 11.2 GHz

Approved for provisional equivalence

NPL

 

30

RF

  CCEM.RF- K20

Measurements of electric field strength

1999

2004

K

 Electricity and Magnetism, Radio frequencies

Frequency: 10 MHz to 1 GHz (13 discrete values among which four were selected for the K: 30 MHz, 100 MHz, 300 MHz, and 900 MHz)

Approved for equivalence, Results available

METAS,Switzerland

2006

31

RF

  CCEM.RF- K21.F

Comparison of antenna factors

2002

2004

K

 Electricity and Magnetism, Radio frequencies

Frequency: 300 MHz and 900 MHz

Approved for equivalence, Results available

NPL

2006

32

RF

  CCEM.RF- K23.F

Antenna gain

2009 -

 

K

Electricity and Magnetism, Radio frequencies

Frequencies: 12.4 GHz, 15 GHz and 18 GHz

In progress

NIST

 

33

RF

 CCEM.RF- K24.F

Correction factor for E-field measurements

2010-

2011

K

Electricity and Magnetism, Radio frequencies

Frequencies: 1 GHz, 2.45 GHz, 10 GHz and 18 GHz     Indicated field levels: 10 V/m, 30 V/m and 100 V/m

In progress

NPL

 

34

RF

  CCEM.RF- K4.CL

Voltage measurements

1997

2002

K

 Electricity and Magnetism, Radio frequencies

Voltage: 1 V Frequency: 1 MHz to 300 MHz, 1 GHz (option)

Approved for provisional equivalence

NIST

2010

35

RF

  CCEM.RF- K5.b.CL

Reflection coefficient / S parameters in type N connectors

2003

2006

K

 Electricity and Magnetism, Radio frequencies

Frequency: 2 GHz to 18 GHz

Approved for equivalence, Results available

NPL

2010

36

RF

  CCEM.RF- K5.c.CL

Reflection coefficient / S parameters in PC-3.5

2012

2015

K

 Electricity and Magnetism, Radio frequencies

Frequency: 50 MHz to 33 GHz

Planned

NMIJ

 

37

RF

  CCEM.RF- K8.CL

Power in 50 ohm coaxial lines

1998

2001

K

 Electricity and Magnetism, Radio frequencies

Calibration factor of type-N and type-PC7 thermistor mounts

  Frequency: 10 MHz, 50 MHz, 1 GHz, 4 GHz, 8 GHz, 12 GHz, 15 GHz, and 18 GHz

Approved for equivalence, Results available

Nmi-VSL

 

38

RF

 CCEM.RF- K25.W

RF power from 33 GHz to 50 GHz in waveguide   

2010

2012

K

Electricity and Magnetism, Radio frequencies

18 frequencies from 33 GHz to 50 GHz in the R400 waveguide band

In progress

PTB

 

39

RF

  APMP.EM.RF- K19.CL

Attenuation in a 50 ohm coaxial line

2007

2008

K

 Electricity and Magnetism, Radio frequencies

Frequency: 60 MHz and 5 GHz 

Approved for equivalence, Results available

NIM

2010

40

RF

 APMP.EM.RF- K8.CL

Power in 50 ohm coaxial lines

2012

2013

K

Electricity and Magnetism, Radio frequencies

Frequency: 10 MHz, 50 MHz, 1 GHz, 4 GHz, 8 GHz, 12 GHz, 15 GHz, and 18 GHz

Protocol complete

NMIJ

 

41

RF

APMP.EM-K5.1

  AC power at 50 Hz/60 Hz

2010

2013

K

Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer

Power factor: 1.0, 0.5 Lead, 0.5 Lag, 0.0 Lead, 0.0 Lag

 In progress

NIM

 

Time and Frequency

1

TF

  CCTF- K001.UTC

Calculation of the reference time scale UTC (Coordinated Universal Time)

1977

1977

K

 Time and Frequency, Time

UTC(k) is the local representation of UTC maintained by the laboratory k

Ongoing, approved for equivalence, Results available

BIPM

20062007,2008,2009,2010