CLAS Certificate Number 90-01

Company Name Environment and Climate Change Canada, WST Calibration Laboratory
Company Address 867 Lakeshore Rd., P.O. Box 5050
Burlington, Ontario L7R 4A6
Contact Mr. Joe Gabriele
Telephone: 905-336-4749
Fax: 905-336-4970
Emailjoe.gabriele@ec.gc.ca
Clients served
  • All fields of calibration are exclusively for Environment and Climate Change Canada clients except for the calibration of current meters. Contact Environment and Climate Change Canada for details with regards calibration of current meters.
Fields of calibration
Accreditation body
  • Standards Council of Canada (SCC)
ISO/IEC 17025
  • SCC file number: 15044
  • First issued
  • Issue 7.2e

This CLAS Certificate is published by the CLAS service of the National Research Council of Canada (NRC) in cooperation with the laboratory accreditation of the Canadian Association for Laboratory Accreditation (CALA) and the Standards Council of Canada (SCC). The accreditation body recognizes the capability of the named laboratory for being able to perform calibrations as per the listed Calibration and Measurement Capabilities with metrological traceability to the International System of Units (SI) or to standards acceptable to CLAS. See supplementary notes.

Chemical

Measured Quantity & Range or Instrumen Expanded Measurement Uncertainty Type of Service Remarks
pH
4 to 10 0.02 II For the calibration of pH meters using standard solutions.
Conductivity
10 μS/cm to 1500 μS/cm 0.5 % of reading II For the calibration of electrolytic conductivity meters using standard solutions.
Turbidity
1 NTU to 7500 NTU 5 % of reading II For the calibration of turbidity meters using standard solutions. Procedure according to ASTM D7315

Electrical

Measured Quantity & Range or Instrument Expanded Measurement Uncertainty Type of Service Remarks
Voltage, DC
0 mV to 220 mV 0.0009 % + 0.8 µV II Source. For the calibration of dc voltage measuring devices using a multifunction calibrator.
220 mV to 2.2 V 0.0008 % + 1.2 µV
2.2 V to 11 V 0.0008 % + 4 µV
11 V to 22 V 0.0008 % + 8 µV
22 V to 220 V 0.0009 % + 100 µV
220 V to 1100 V 0.0011 % + 600 µV
Current, DC
0 μA to 220 μA 0.006% + 10 nA II Source. For the calibration of dc current measuring devices using a multifunction calibrator.
220 μA to 2.2 mA 0.006% + 10 nA
2.2 mA to 22 mA 0.006% + 100 nA
22 mA to 220 mA 0.007% + 1 μA
220 mA to 2.2 A 0.009% + 30 μA
Measured Quantity & Range or Instrument Frequency Expanded Measurement Uncertainty Type of Service Remarks
Voltage, AC
220 μV to 1100 V 10 Hz to 1 MHz 78 µV/V to 2.1 % II Source. For the calibration of AC voltage measurement devices using a multifunction calibrator. See Annex A for detailed capabilities
Current, AC
22 μA to 2.2 A 10 Hz to 10 kHz 156 µA/A to 3.9 % II Source. For the calibration of AC current measurement devices using a multifunction calibrator. See Annex B for detailed information.
Measured Quantity & Range or Instrument Expanded
Measurement
Uncertainty
Type of Service Remarks
Resistance
0 Ω 50 μΩ II Source. For the calibration of resistance measurement devices using a multifunction calibrator.
1 Ω 95 μΩ/Ω
1.9 Ω 95 μΩ/Ω
10 Ω 28 μΩ/Ω
19 Ω 27 μΩ/Ω
100 Ω 17 μΩ/Ω
190 Ω 17 μΩ/Ω
1 kΩ 13 μΩ/Ω
1.9 kΩ 13 μΩ/Ω
10 kΩ 12 μΩ/Ω
19 kΩ 12 μΩ/Ω
100 kΩ 14 μΩ/Ω
190 kΩ 14 μΩ/Ω
1 MΩ 20 μΩ/Ω
1.9 MΩ 21 μΩ/Ω
10 MΩ 40 μΩ/Ω
19 MΩ 47 μΩ/Ω
100 MΩ 110 μΩ/Ω

Calibration of current meters

Measured Quantity & Range or Instrument Expanded
Measurement
Uncertainty
Type of Service Remarks
0.01 m/s to 3.5 m/s 0.2 % of velocity + 0.002 m/s I For the calibration of streamflow velocity current meters as per ISO/IEC 3455 for mechanical and electromagnetic type current meters for the point velocity measurement of flowing water

Humidity

Measured Quantity & Range or Instrument Expanded Measurement Uncertainty Type of Service Remarks
Relative Humidity

40 % R.H. to 90 % R.H.
at 5 °C to 40 °C

1 % I For the calibration of relative humidity measuring devices using Thunder Scientific 6000 or equivalent air chamber.
10 % R.H. to 90 % R.H.
at 15 °C to 40 °C
1 %
10 % R.H. to 95 % R.H.
at 15 °C to 30 °C
1 %
15 % R.H. to 95 % R.H.
at 10 °C to 30 °C
1 %

Pressure

Measured Quantity & Range or Instrument Expanded
Measurement
Uncertainty
Type of Service Remarks
2 kPa to 5.2 MPa 0.013 % of reading I For the calibration of pneumatic pressure, absolute pressure or pressure gauge using a reference pressure transducer or dead weight tester.
 

Thermometry

Measured Quantity & Range or Instrument Expanded
Measurement
Uncertainty
Type of Service Remarks
Specific Value
0.01 °C 0.5 mK
(0.000 5 °C)
I For calibration of temperature sensors by comparison against the laboratory’s PRT in a triple point water cell.
Other Values
-25 °C to +40 °C 10 mK
(0.010 °C)
I For calibration of temperature sensors by comparison against the laboratory’s PRT in temperature-controlled baths

Annex A

Uncertainty, ± { ( % of reading) + residual }, of AC Voltage measurement for the calibration of digital multimeters and Voltage measuring devices

Voltage, AC Frequency
10 Hz to 20 Hz 20 Hz to 40 Hz 40 Hz to 20 kHz 20 kHz to 50 kHz 50 kHz to 100 kHz 100 kHz to 300 kHz 300 kHz to 500 kHz 500 kHz to 1 MHz
220 μV to
2.2 mV
0.055 % + 4.5 μV 0.021 % + 4.5 μV 0.011 % + 4.5 μV 0.037 % + 4.5 μV 0.085 % + 7 μV 0.11 % + 13 μV 0.17 % + 25 μV 0.34 % + 25 μV
2.2 mV to
22 mV
0.055 % + 5 μV 0.021 % + 5 μV 0.011 % + 5 μV 0.037 % + 5 μV 0.085 % + 7 μV 0.11 % + 12 μV 0.17 % + 25 μV 0.34 % + 25 μV
22 mV to
220 mV
0.055 % + 13 μV 0.021 % + 8 μV 0.011 % + 8 μV 0.032 % + 8 μV 0.085 % + 25 μV 0.11 % + 25 μV 0.17 % + 35 μV 0.34 % + 80 μV
220 mV to
2.2 V
0.05 % + 80 μV 0.016 % + 25 μV 0.0075 % + 6 μV 0.012 % + 16 μV 0.025 % + 70 μV 0.043 % + 130 μV 0.11 % + 350 μV 0.22 % + 850 μV
2.2 V to
22 V
0.05 % + 800 μV 0.016 % + 250 μV 0.0075 % + 60 μV 0.012 % + 160 μV 0.025 % + 350 μV 0.05 % + 1500 μV 0.125 % + 4300 μV 0.27 % + 8500 μV
22 V to
220 V
0.05 % + 8 mV 0.016 % + 2.5 mV 0.008 % + 0.8 mV 0.022 % + 3.5 mV 0.05 % + 8 mV 0.15 % + 90 mV 0.47 % + 90 mV 1.2 % + 190 mV
 
Voltage, AC Frequency
15 Hz to 50 kHz 50 Hz to 1 kHz
220 V to 1100 V 0.04 % + 16 mV 0.008 % + 3.5 mV

Annex B

Uncertainty, ± { ( % of reading) + residual }, of AC current measurement for the calibration of digital multimeters and current measuring devices

Current, AC Frequency
10 Hz to 20 Hz 20 Hz to 40 Hz 40 Hz to 1 kHz 1 kHz to 5 kHz 5 kHz to 10 kHz
22 μA to 220 μA 0.07 % + 25 nA 0.035 % + 20 nA 0.014 % + 16 nA 0.06 % + 40 nA 1.6 % + 80 nA
220 μA to 2.2 mA 0.07 % + 40 nA 0.035 % + 35 nA 0.014 % + 35 nA 0.06 % + 400 nA 1.6 % + 800 nA
2.2 mA to 22 mA 0.07 % + 400 nA 0.035 % + 350 nA 0.014 % + 350 nA 0.06 % + 4000 nA 1.6 % + 8000 nA
22 mA to 220 mA 0.07 % + 4 μA 0.035 % + 3.5 μA 0.014 % + 3.5 μA 0.06 % + 40 μA 1.6 % + 80 μA
220 mA to 2.2 A N/A N/A 0.046 % + 170 μA 0.095 % + 380 μA 3.6 % + 750 μA