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ISO/IEC 17025 (2005) - The uncertainty of measurement is reported as an expanded uncertainty having a level of confidence of 95% unless stated otherwise
Calibration
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| SERVICE | PRODUCT | DETERMINANT | TECHNIQUE | PROCEDURE | LIMITATION/RANGE |
| DC and low frequency electrical metrology - Electrical instrument calibrators | Instrument calibrators | AC voltage | Comparison with a reference standard | |
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CAPABILITY
0.15% + 34μV of reading at 0.01 mV to 10 mV and from 10 Hz to 20 kHz
0.25% + 70μV of reading at 0.01 mV to 10 mV and from 20 kHz to 50 kHz
1.1% + 110μV of reading at 0.01 mV to 10 mV and from 50 kHz to 100 kHz
0.02% of reading from 0.01 V to 10 V and from 10 Hz to 20 kHz
0.05% of reading from 0.01 V to 10 V and from 20 kHz to 50 kHz
0.12% of reading from 0.01 V to 10.0 V and from 50 kHz to 100 kHz
0.04% of reading from 10 V to 100 V at 10 Hz
0.03% of reading from 10 V to 100 V and from 10 Hz to 20 kHz
0.06% of reading from 10 V to 100 V and from 20 kHz to 50 kHz
0.18% of reading from 10 V to 100 V and from 50 kHz to 100 kHz
0.07% of reading from 100 V to 700 V at 40 Hz
0.09% of reading from 100 V to 700 V and from 40 Hz to 10 kHz
0.12 % of reading from 700 V to 1000 V and from 40 Hz to 10 kHz
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| | AC current | Comparison with a reference standard | |
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CAPABILITY
0.6% of reading from 10 μA to 10 A at 10 Hz
0.3% of reading from 10 μA to 100 μA and from 10 Hz to 5 kHz
1.6% of reading from 10 μA to 100 μA and from 5 kHz to 10 kHz
0.1% of reading from 0.1 mA to 100 mA and from 10 Hz to 20 kHz
0.7% of reading from 0.1 mA to 100 mA and from 20 kHz to 30 kHz
0.2% of reading from 100 mA to 1 A and from 10 Hz to 5 kHz
0.5% of reading from 100 mA to 1 A and from 5 kHz to 20 kHz
1.6% of reading from 100 mA to 1 A and from 20 kHz to 30 kHz
0.3% of reading from 1 A to 10 A and from 10 Hz to 5 kHz
1.6% of reading from 1 A to 10 A and from 5 kHz to 10 kHz
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| | Resistance | Comparison with a reference standard | | 0 Ω to 100 MΩ
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CAPABILITY
0.0033% of reading + 0.2 mΩ from 0 Ω to 10 Ω
0.003% of reading + 2 mΩ from 10 Ω to 100 Ω
0.002% of reading + 1.5 Ω from 100 Ω to 100 kΩ
0.003% of reading + 24 Ω from 100 kΩ to 1 MΩ
0.01% of reading + 730 Ω from 1 MΩ to 10 MΩ
0.085% of reading + 0.06 MΩ from 10 MΩ to 100 MΩ
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| | DC current | Comparison with a reference standard | | 0 μA to 10 A
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CAPABILITY
0.004% of reading + 0.002 μA from 0 μA to 100 μA
0.003% of reading + 0.14 μA from 100 μA to 10 mA
0.005% of reading + 1.9 μA from 10 mA to 100 mA
0.014% of reading + 30 μA from 100 mA to 1 A
0.14% of reading + 0.75 mA from 1 A to 3A
0.18% of reading + 0.22 mA from 3 A to 10 A
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| | DC voltage | Comparison with a reference standard | | 0 V to 1000 V
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CAPABILITY
0.0017% of reading + 1.4 μV from 0 V to 0.1 V
0.0011% of reading + 11 μV from 0.1 V to 1 V
0.001% of reading + 50 μV from 1 V to 10 V
0.0014% of reading + 0.8 mV from 10 V to 100 V
0.002% of reading + 16 mV from 100 V to 1000 V
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| DC and low frequency electrical metrology - Electrical measurement and test equipment | Ammeters | DC current | Comparison with a reference standard | | 0 μA to 10 A
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CAPABILITY
0.004% of reading + 0.002 μA from 0 μA to 100 μA
0.003% of reading + 0.14 μA from 100 μA to 10 mA
0.005% of reading + 1.9 μA from 10 mA to 100 mA
0.014% of reading + 30 μA from 100 mA to 1 A
0.14% of reading + 0.75 mA from 1 A to 3A
0.18% of reading + 0.22 mA from 3 A to 10 A
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| | AC current | Comparison with a reference standard | |
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CAPABILITY
0.6% of reading from 10 μA to 10 A at 10 Hz
0.3% of reading from 10 μA to 100 μA and from 10 Hz to 5 kHz
1.6% of reading from 10 μA to 100 μA and from 5 kHz to 10 kHz
0.1% of reading from 0.1 mA to 100 mA and from 10 Hz to 20 kHz
0.7% of reading from 0.1 mA to 100 mA and from 20 kHz to 30 kHz
0.2% of reading from 100 mA to 1 A and from 10 Hz to 5 kHz
0.5% of reading from 100 mA to 1 A and from 5 kHz to 20 kHz
1.6% of reading from 100 mA to 1 A and from 20 kHz to 30 kHz
0.3% of reading from 1 A to 10 A and from 10 Hz to 5 kHz
1.6% of reading from 1 A to 10 A and from 5 kHz to 10 kHz
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| Ohm meters | Resistance | Comparison with a reference standard | | 0 Ω to 100 MΩ
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CAPABILITY
0.0033% of reading + 0.2 mΩ from 0 Ω to 10 Ω
0.003% of reading + 2 mΩ from 10 Ω to 100 Ω
0.002% of reading + 1.5 Ω from 100 Ω to 100 kΩ
0.003% of reading + 24 Ω from 100 kΩ to 1 MΩ
0.01% of reading + 730 Ω from 1 MΩ to 10 MΩ
0.085% of reading + 0.06 MΩ from 10 MΩ to 100 MΩ
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| Voltmeters | DC voltage | Comparison with a reference standard | | 0 V to 1000 V
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CAPABILITY
0.0017% of reading + 1.4 μV from 0 V to 0.1 V
0.0011% of reading + 11 μV from 0.1 V to 1 V
0.001% of reading + 50 μV from 1 V to 10 V
0.0014% of reading + 0.8 mV from 10 V to 100 V
0.002% of reading + 16 mV from 100 V to 1000 V
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| | AC voltage | Comparison with a reference standard | |
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CAPABILITY
0.15% + 34μV of reading at 0.01 mV to 10 mV and from 10 Hz to 20 kHz
0.25% + 70μV of reading at 0.01 mV to 10 mV and from 20 kHz to 50 kHz
1.1% + 110μV of reading at 0.01 mV to 10 mV and from 50 kHz to 100 kHz
0.02% of reading from 0.01 V to 10 V and from 10 Hz to 20 kHz
0.05% of reading from 0.01 V to 10 V and from 20 kHz to 50 kHz
0.12% of reading from 0.01 V to 10.0 V and from 50 kHz to 100 kHz
0.04% of reading from 10 V to 100 V at 10 Hz
0.03% of reading from 10 V to 100 V and from 10 Hz to 20 kHz
0.06% of reading from 10 V to 100 V and from 20 kHz to 50 kHz
0.18% of reading from 10 V to 100 V and from 50 kHz to 100 kHz
0.07% of reading from 100 V to 700 V at 40 Hz
0.09% of reading from 100 V to 700 V and from 40 Hz to 10 kHz
0.12 % of reading from 700 V to 1000 V and from 40 Hz to 10 kHz
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| DC and low frequency electrical metrology - Electrical standards | Conductance boxes; Precision resistors; Resistance boxes; | Resistance | Comparison with a reference standard | | 0 Ω to 100 MΩ
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CAPABILITY
0.0033% of reading + 0.2 mΩ from 0 Ω to 10 Ω
0.003% of reading + 2 mΩ from 10 Ω to 100 Ω
0.002% of reading + 1.5 Ω from 100 Ω to 100 kΩ
0.003% of reading + 24 Ω from 100 kΩ to 1 MΩ
0.01% of reading + 730 Ω from 1 MΩ to 10 MΩ
0.085% of reading + 0.06 MΩ from 10 MΩ to 100 MΩ
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| Pressure metrology - Pressure and vacuum measuring equipment | Digital pressure gauges; Mechanical pressure gauges; Pressure recorders; Pressure transducers; Vacuum gauges; | Gauge pressure; High vacuum; | Comparison with reference instrument | | -95 to 120 MPa
Electrical transducers with dc voltage, dc current or resistance outputs
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Including on site calibrations
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CAPABILITY
Gauge pressure calibration
With Calibration and Measurement Capability of-
0.016% reading or 0.016 kPa (whichever is greater) in the range -95 to 100 kPa
0.016% reading in the range 100 kPa to 120 MPa
For on site calibrations
Calibration and Measurement Capability of-
0.13% reading from -95 kPa to 120 MPa
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| Pressure metrology - Pressure standards | Pressure calibrators - Non-dead weight | Gauge pressure | Comparison with reference instrument | | Gauge pressure calibration in the range -95 to 120 MPa
On-site gauge pressure calibration (industrial grade only) in the range -95 kPa to 120 MPa
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CAPABILITY
Gauge pressure calibration in the range -95 to 100 kPa
0.016% reading or 0.016 kPa (whichever is greater)
Gauge pressure calibration in the range 100 kPa to 120 MPa
0.016% reading
On-site gauge pressure calibration
0.13% reading
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| Time and frequency metrology - Frequency, time and waveform measuring equipment | Counters | Frequency | | | 1 Hz to 10 MHz
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CAPABILITY
0.045% of reading from 1 Hz to 40 Hz
0.015% of reading from 40 Hz to 10 MHz
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| Tachometers | Rotational speed | | | 60 rpm to 90,000 rpm
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CAPABILITY
0.045% of reading from 60 rpm to 2400 rpm
0.015% of reading from 2400 rpm to 90,000 rpm
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| Stroboscopes | Frequency | | | 1 Hz to 1.5 kHz
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CAPABILITY
0.045% of reading from 1 Hz to 40 Hz
0.015% of reading from 40 Hz to 1.5 kHz
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| Time interval meters | Time interval | | | 100 ns to 1 s
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CAPABILITY
0.015 % of reading from 100 ns to 1 s
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