Per GPA 2261 & GPA 2145 - Composition-Based Heating Value
GPA 2261 Gas Chromatograph BTU Analysis
Calculates heating value, specific gravity, molecular weight, compressibility factor, Wobbe Index, and methane number from extended gas chromatograph composition data. Supports multiple base pressure conventions and C6+ characterization options.
Primary Components (mol%)
mol%
mol%
mol%
mol%
mol%
mol%
mol%
mol%
Non-Hydrocarbons (mol%)
mol%
mol%
mol%
Pipeline-quality limit: 4 ppm (0.0004 mol%)
mol%
mol%
Pipeline-quality limit: 7 lb/MMSCF
Total:99.65%
Analysis Options
Base pressure for standard volume and heating value
Heavier characterization increases calculated HV
Adjusts all components proportionally if total is not exactly 100%
📚 Learn the Theory
Understand GPA 2261 analysis methods, heating value calculations, and gas quality specifications