Ranges and Uncertainties
|range||calibration and measurement capability (CMC) *|
|component||amount fraction (% mol/mol)||amount fraction (% mol/mol)|
|nitrogen||0.1 to 1.8||1.10% relative + 0.0065|
|methane||79 to 100||0.035|
|ethane||0.1 to 4||0.30% relative + 0.001|
|4 to 14||0.05% relative + 0.010|
|propane||0.1 to 4||0.15% relative + 0.0015|
|iso-butane||0.02 to 1.3||0.25% relative + 0.0010|
|n-butane||0.02 to 1.3||0.25% relative + 0.0010|
|iso-pentane||0.01 to 0.16||0.50% relative + 0.0002|
|n-pentane||0.01 to 0.16||0.50% relative + 0.0002|
|* The calibration and measurement capability is based on a standard uncertainty multiplied by a coverage factor k=2, providing a level of confidence of approximately 95%. The uncertainty evaluation has been carried out in accordance with UKAS requirements|
This table was reviewed on 19 February 2021 and refers to the ISO 17025 scope (Issue No. 052) for EffecTech in the UK only.
Probe Technical Specifications
The EffecTech cryostat has the following requirements for the probe:
- Minimum probe length is 29 inches / 73.66cm.
- Probe diameter must be 1 inch / 2.54cm.
A KF-50 to compression fitting is connected to the probe to ensure that 27 inches (68.58cm) of the probe length is achieved.