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 updated on 26 February, 2020. For the most up-to-date information, see EffecTech’s ISO 17025 scope.
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.