Properties for gas quality (GQ): chromatograph tab
- Last UpdatedNov 21, 2025
- 2 minute read
This tab is used to define the Gas Quality (GQ) Properties that are unique to a Chromatograph.
For this tab to be visible, the Analysis Source must be set to Chromatograph. These properties define the default values for the chromatograph. These values do not affect any calculations with AVEVA Measurement Advisor . However, they are available for RealTime database applications in the defaultBuf array on the gasquality record.
For more information, refer to the AVEVA Pipeline Operations for Gas documentation.
|
Section |
Item |
Description |
|
Default Analysis Values |
Heating value |
Defines the default value associated with the heating value. |
|
Specific gravity |
Defines the default value associated with the specific gravity. |
|
|
Carbon dioxide |
Defines the default value associated with carbon dioxide. |
|
|
Nitrogen |
Defines the default value associated with nitrogen. |
|
|
Hydrogen |
Defines the default value associated with hydrogen. |
|
|
Sulphur |
Defines the default value associated with sulphur. |
|
|
Hydrogen sulfide |
Defines the default value associated with hydrogen sulfide. |
|
|
Water |
Defines the default value associated with water. |
|
|
Helium |
Defines the default value associated with helium. |
|
|
Oxygen |
Defines the default value associated with oxygen. |
|
|
Carbon monoxide |
Defines the default value associated with carbon monoxide. |
|
|
Argon |
Defines the default value associated with argon. |
|
|
Methane |
Defines the default value associated with methane. |
|
|
Ethane |
Defines the default value associated with ethane. |
|
|
Propane |
Defines the default value associated with propane. |
|
|
Normal butane |
Defines the default value associated with normal butane. |
|
|
Isotopic butane |
Defines the default value associated with isotopic butane. |
|
|
Normal pentane |
Defines the default value associated with normal pentane. |
|
|
Isotopic pentane |
Defines the default value associated with isotopic pentane. |
|
|
Neo pentane |
Defines the default value associated with neo pentane. |
|
|
Hexane |
Defines the default value associated with hexane. |
|
|
Heptane |
Defines the default value associated with heptane. |
|
|
Octane |
Defines the default value associated with octane. |
|
|
Nonane |
Defines the default value associated with nonane. |
|
|
Decane |
Defines the default value associated with decane. |
|
|
Wobbe Index |
Defines the default value that provides the Wobbe index information. |
|
|
Extended Gas Analysis Values |
Water dewpoint |
Defines the default value that provides water dewpoint information. |
|
Hydrocarbon dewpoint |
Defines the default value that provides the hydrocarbon dewpoint information. |
|
|
Total sulphur |
Defines the default value that provides the total sulphur information. |
|
|
Extended Liquid Analysis Values |
Density |
Defines the default value that provides the density information. |
|
BSW |
Defines the default value that provides the Base, Sediment, and Water (BSW) information. |
|
|
Viscosity |
Defines the default value that provides the viscosity information. |