Gas
A gas is a substance that is neither liquid nor solid, has no fixed shape or volume and will expand freely to fill a container. Articles about gases in Designing Buildings include:
- Ammonia.
- Biogas.
- Blast furnace gas.
- Carbon dioxide.
- Dioxin.
- Fluorinated greenhouse gas (F gases).
- Fluorocarbon.
- Greenhouse gas.
- Ground gas.
- HFC.
- Hydrogen.
- Liquefied petroleum gas (LPG).
- Mains gas.
- Methane.
- Mine gas.
- Natural gas.
- Nitrous oxide.
- Ozone depleting substances.
- R22.
- Radon.
- Refrigerants.
- Shale gas.
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