» Storing full and empty cylinders
In general, the precautions to be taken in handling LPG are similar to those applying to petroleum spirit but in particular, all persons concerned with the handling of LPG should be familiar with the following properties.
- LPG is normally stored as a liquid under pressure
- Leakage, especially of liquid, may release large volumes of flammable gases
- A very small proportion of LPG released into air can give rise to an explosive mixture
- LPG vapour is heavier than air and may flow along the ground or through drains and be ignited at a considerable distance from the source of leakage. In still air, any vapour will disperse slowly
- LPG liquid, by its rapid vaporisation and consequent lowering of the temperature, can cause severe frost burns if it comes into contact with the skin
- For general purposes, LPG is odorised before distribution so that its distinctive smell can give warning of gas escape
For full details on the storage of full and empty LPG cylinders and cartridges including open air storage, seperation distances, fire walls, storage in buildings, indoor cylinder storage, storage in commercial and industrial premises, please see the pdf 'Code of Guidance for Storage of Cylinders'.