This calculator determines the mass density of natural gas using the AGA8 detailed characterization equation (i.e. AGA8-92DC). It is valid subject to the following conditions:
- Absolute pressure: 0 MPa ≤ p ≤ 65 MPa
- Temperature: 225 K ≤ T ≤ 350 K
- Superior calorific value: 20 MJ/m³ ≤ HS ≤ 48 MJ/m³
- Relative density: 55% ≤ d ≤ 90%
- Methane: 50% ≤ xCH₄ ≤ 100%
- Nitrogen: 0% ≤ xN₂ ≤ 50%
- Carbon dioxide 0% ≤ xCO₂ ≤ 30%
- Ethane 0% ≤ xC₂H₆ ≤ 20%
- Propane 0% ≤ xC₃H₈ ≤ 5%
- Hydrogen 0% ≤ xH₂ ≤ 10%