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 -


Relative Expanded Uncertainty / (μΩ/Ω)Typical Current / VoltageStandard
10 μΩ1032 AStandard Resistors
>10 μΩ to <100 μΩ2010 A to 32 AStandard Resistors
100 μΩ
210 AStandard Resistors
>100 μΩ to <1 mΩ
23.2 A to 10 AStandard Resistors
1 mΩ1.53.2 AStandard Resistors
>1 mΩ to <10 mΩ
21 A to 3.2 AStandard Resistors
10 mΩ11 AStandard Resistors
>10 mΩ to <100 mΩ
1320 mA to 1 AStandard Resistors
100 mΩ0.3320 mAStandard Resistors
>100 mΩ to <1 Ω
1100 mA to 320 mAStandard Resistors
1 Ω0.15100 mAStandard Resistors
>1 Ω to <10 Ω
0.332 mA to 100 mAStandard Resistors
10 Ω
0.1532 mAStandard Resistors
>10 Ω to <100 Ω
0.310 mA to 32 mAStandard Resistors
100 Ω
0.1510 mAStandard Resistors
>100 Ω to <1 kΩ
0.33.2 mA to 10 mAStandard Resistors
1 kΩ
0.153.2 mAStandard Resistors
>1 kΩ to <10 kΩ
0.31 mA to 3.2 mAStandard Resistors
10 kΩ
0.151 mAStandard Resistors
>10 kΩ to 1 MΩ10.1 mA to 1 mAStandard Resistors
>1 MΩ to <10 MΩ
210 V to 100 VStandard Resistors
10 MΩ110 V to 100 VStandard Resistors
>10 MΩ to <100 MΩ
210 V to 100 V
Standard Resistors
10 MΩ to 100 MΩ
300>100 V to 1000 V
Standard Resistors
100 MΩ250 V to 100 VStandard Resistors
>100 MΩ to 1 GΩ
500>100 V to 1000 V
Standard Resistors
1 GΩ
5
100 V
Standard Resistors
>1 GΩ to 100 GΩ
1000100 V to 1000 V
Standard Resistors
>100 GΩ to <1 TΩ
3000100 V to 1000 V
Standard Resistors
1 TΩ
2000
100 V to 1000 V
Standard Resistors
>1 TΩ to 10 TΩ
3000
100 V to 1000 V
Standard Resistors
>10 TΩ to 100 TΩ
30000
100 V to 1000 V
Standard Resistors

Current shunts Resistance Comparison with a reference standard

10 μΩ to 1 mΩ

Capability

With Calibration and Measurement Capability of - 


Relative Expanded Uncertainty / (μΩ/Ω)CurrentStandard
10 μΩ to <100 μΩ200 to 20100 A to 2000 ADC Shunts
100 μΩ to 1 mΩ20 to 10100 A to 2000 ADC Shunts
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-

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 -

Self inductors at 1000 Hz

5 nH from 10 μH to 1 mH

5 μH/H from 1 mH to 1.1 H

100 µH/H from 1.1 to 11 H

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

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