National Measurement Institute (NMI)

Site

Impedance Standards Project

Accreditation No.

1

Site No.

14443

Date of Accreditation

08 Sep 2000

Address

36 Bradfield Road
Lindfield West, NSW 2070
Australia

measurement.gov.au

Contact

Ms Charmaine Kwan P: +61 (02) 84673836

Availability

Services conditionally available to external clients

National Measurement Institute (NMI) address map

Scope of Accreditation

Print scopes
Impedance Standards Project

ISO/IEC 17025 (2017)

Calibration

  • The uncertainty of measurement is reported as an expanded uncertainty having a level of confidence of 95% unless stated otherwise
Service Product Determinant Technique Procedure Limitations
DC and low frequency electrical metrology - Electrical standards Conductance boxes; Precision resistors; Resistance boxes Resistance Comparison with a primary realisation; Comparison with a reference standard

from 10 μΩ to 100 TΩ

Capability

With Calibration and Measurement Capability of -

Resistance

Relative Expanded Uncertainty / (μΩ/Ω)Typical Current / Voltage

10 μΩ

10

32 A

>10 μΩ to <100 μΩ

20

10 A to 32 A

100 μΩ

2

10 A

>100 μΩ to <1 mΩ

2

3.2 A to 10 A

1 mΩ

 1

3.2 A

>1 mΩ to <10 mΩ

2

1 A to 3.2 A

10 mΩ

0.5

1 A

>10 mΩ to <100 mΩ

1

320 mA to 1 A

100 mΩ

0.3

320 mA

>100 mΩ to <1 Ω

1

100 mA to 320 mA

1 Ω

0.15

100 mA

>1 Ω to <10 Ω

0.3

32 mA to 100 mA

10 Ω

0.15

32 mA

>10 Ω to <100 Ω

0.3

10 mA to 32 mA

100 Ω

0.15

10 mA

>100 Ω to <1 kΩ

0.3

3.2 mA to 10 mA

1 kΩ

0.15

3.2 mA

>1 kΩ to <10 kΩ

0.3

1 mA to 3.2 mA

10 kΩ

0.15

1 mA

>10 kΩ to 1 MΩ

1

0.1 mA to 1 mA

>1 MΩ to <10 MΩ

2

10 V to 100 V

10 MΩ

1

10 V to 100 V

>10 MΩ to <100 MΩ

2

10 V to 100 V

10 MΩ to 100 MΩ

300

>100 V to 1000 V

100 MΩ

2

50 V to 100 V

>100 MΩ to 1 GΩ

500

>100 V to 1000 V

1 GΩ

5

100 V

>1 GΩ to 100 GΩ

1000

100 V to 1000 V

>100 GΩ to <1 TΩ

3000

100 V to 1000 V

1 TΩ

2000

100 V to 1000 V

>1 TΩ to 10 TΩ

3000

100 V to 1000 V

>10 TΩ to 100 TΩ

30000

100 V to 1000 V









DC and low frequency electrical metrology - Electrical standards Current shunts Resistance Comparison with a reference standard

10 μΩ to 1 mΩ

Capability

With Calibration and Measurement Capability of - 

Nominal value
Relative Expanded Uncertainty / (μΩ/Ω)
Current 
10 µΩ
2030 A to  100 A
10 μΩ
200>100 A to 1000 A
100 µΩ
510 A to 100 A
100 µΩ
10>100 A to 1000 A
1 mΩ
33 A to 100 A
1 mΩ
5>100 A to 1000 A
DC and low frequency electrical metrology - Electrical standards Inductive voltage dividers Voltage ratio Comparison with a primary realisation; Comparison with a reference standard from 40 Hz to 63 Hz with input voltages from 100 V to 1000 V
from 400 Hz to 1 kHz with input voltages from 100 V to 1000 V
from 50 Hz to 5 kHz with input voltages from 5 V to 50 V

Capability

With Calibration and Measurement Capability of -

Expanded Uncertainty / (nV/V)

5 V to 50 V100 V to 1000 V
40 Hz to 50 Hz-1
> 50 Hz to 63 Hz101
> 63 Hz to 400 Hz1010
> 400 Hz to 1 kHz1050
> 1 kHz to 2 kHz10-
> 2 kHz to 5 kHz
100-

DC and low frequency electrical metrology - Electrical standards Inductors Inductance Comparison with a primary realisation; Comparison with a reference standard

from 10 μH to 11 H

Capability

With Calibration and Measurement Capability of -

8 nH from 10 μH to 500 μH
30 μH/H from above 500 μH  to below 10 mH
10 μH/H from 10 mH to 1.1 H
30 μH/H from 1.1 to 11 H

DC and low frequency electrical metrology - Electrical standards Precision capacitors Capacitance Comparison with a primary realisation; Comparison with a reference standard

from 1 pF to 1 μF

Capability

With Calibration and Measurement Capability of - 



Relative expanded uncertainty / (μF/F)


1000 Hz, 1592 Hz400 Hz to 5000 Hz
1 pF to 100 pFFused-silica standard capacitor0.08
100 pF to 10000 pFStandard capacitor, gas dielectric0.1
1 pF to 1000 pFStandard capacitor, gas dielectric

2
1 nF to 10 nFStandard capacitor

20
10 nF to 1μF
Standard capacitor

200

The only data displayed is that deemed relevant and necessary for the clear description of the activities and services covered by the scope of accreditation.

Grey text appearing in a SoA is additional freetext providing further refinement or information on the data in the preceding line entry.