
National Association of Testing Authorities, Australia
Scope of Accreditation
Vipac Engineers and Scientists Ltd
Site
Gas Technology Services
Accreditation No.
676
Site No.
669
Date of Accreditation
13 Nov 1967
Contact
Availability
Services available to external clients
Scope of Accreditation
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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Chemical metrology - Gas analysers | Gas analysers | Concentration | Direct measurement by certified reference material | in-house method WI-UIN-66 | Carbon monoxide: (electrochemical) 0 - 0.1% (v/v) Oxygen: (electrochemical) 0 - 25% (v/v) Methane (thermal conductivity): 0 - 100% (v/v) Methane (hot wire): 0 - 100% (v/v) Methane (catalytic combustion): 0 - 100% (v/v) CH4 (semiconductor): 0 - 0.05% (v/v) Methane (infra-red): 0 - 100% (v/v) Propane (thermal conductivity): 0 - 0.1% (v/v) Propane (hot wire): 0 - 100% (v/v) Propane (catalytic combustion): 0 - 100% (v/v) Propane (semiconductor): 0 - 0.1% (v/v) Propane (infrared): 0 - 100% (v/v) Hydrogen sulfide (electrochemical): 0 - 0.01% (v/v) Natural gas (thermal conductivity): 0-100% (v/v) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability With a measurement uncertainty of - Carbon monoxide: Electrochemical: 5% relative or 0.0006% (v/v) over the range 0 - 0.1% (v/v), whichever is greater Oxygen: Electrochemical: 2.5% relative or 0.2% (v/v) over the range 0 - 25% (v/v), whichever is greater Methane: Thermal conductivity: 3% (v/v) over the range 0 - 100% (v/v) Methane: Hot wire: 2% LEL over the range 0 - 100% LEL Methane: Catalytic combustion: 2% LEL over the range 0 - 100% LEL Methane: Semiconductor: 5% relative or 0.0005% (v/v) (whichever is larger) in the range 0 - 0.05% (v/v) and 5% relative in the range 0.05% - 0.1% (v/v) Methane: Infrared: 2% (v/v) from 0 - 100% (v/v) Propane: Thermal conductivity: 2.5% relative or 0.0005% (v/v) over the range 0 - 0.1% (v/v) Propane: Hot wire: 2% LEL over the range 0 - 100% LEL Propane: Catalytic combustion: 2% LEL over the range 0 - 100% LEL Propane: Semiconductor: 5% relative or 0.0005% (v/v) (whichever is larger) in the range 0-0.05% (v/v) and 5% relative in the range 0.05% to 0.1% (v/v) Propane: Infrared: 2% (v/v) from 0 - 100% (v/v) Hydrogen sulfide : Electrochemical: 5% relative or 0.0003% (v/v) over the range 0 - 0.01% (v/v), whichever is greater Natural gas: Thermal conductivity: 3% (v/v) gas/methane over the range 0-100% (v/v) gas/methane | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Flow metrology - Flow measuring devices and systems | Coriolis meters; Gas meters; Orifice meters | Volume (and nominal flow rate) | Volumetric transfer | Gaseous flow in the flow rate range of 2 mL/h to 3000 m³/h | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability with Calibration and Measurement Capability of - Gaseous flow in the flow rate range of 2 mL/h to 1000 m³/h the greater of: 0.18% of flow rate or 2 mL/h, with a minimum test volume of 1 mL; Gaseous flow In the flow rate range of 1000 m³/h to 2000 m³/h 0.21% of flow rate, with a minimum test volume of 10 L; Gaseous flow in the flow rate range of 2000 m³/h to 3000 m³/h 0.26% of flow rate, with a minimum test volume of 10 L. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Flow computers | Volume (and nominal flow rate) | Comparison with a reference meter | in-house procedures WI-IN-008 and WI-IN-010 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability with Calibration and Measurement Capability of - 0.12% of volume, with a minimum test volume of 2 L. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Gaseous volume proving systems; Oil and gas measurement systems | Volume (and nominal flow rate) | Volumetric transfer | 2 L to 200 kL | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability with Calibration and Measurement Capability of - 0.1% of volume, with a minimum test volume of 2 L | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Sonic nozzles | Flow rate | Volumetric transfer | Gaseous flow in the flow rate range up to 500 m³/h | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability with Calibration and Measurement Capability of - the greater of: 0.18% of flow rate or 2 mL/h, with a minimum test volume of 1 mL. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Pressure metrology - Pressure and vacuum measuring equipment | Barometers | Absolute pressure | Comparison with reference instrument | 80 kPa to 105 kPa | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability with Calibration and Measurement Capability of- 7 Pa from 80 kPa to 105 kPa | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Digital pressure gauges; Manometers; Mechanical pressure gauges; Pressure recorders; Pressure transducers; Vacuum gauges | Absolute pressure; Gauge pressure | Comparison with reference instrument | AS 1349; | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability with Calibration and Measurement Capability of - Gauge pressure 0.01% or 1 Pa (whichever is greater) from -95 kPa to -1.7 kPa 0.5 Pa from -1.7 kPa to 1.7 kPa; 0.01% or 1 Pa (whichever is greater) from 1.7 kPa to 14 MPa Absolute pressure0.01% or 2 Pa (whichever is greater) from 5 kPa to 14 MPa | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Temperature metrology - Temperature measuring equipment | Digital temperature measuring systems | Temperature | Measurement against reference standard | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability Integral thermometers in Flow Computers with Calibration and Measurement Capability of - 0.5°C in the range 10°C to 30°C |
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Accreditation No.
676
Site No.
669
Print date
09 May 2025