Storage
Securing cylinders in the upright position
Location of gas stores
Ventilation
Personal protective equipment
Securing cylinders in the upright position
- Cylinders should always be stored in the upright position. Some gases (e.g. LPG and acetylene) contain a gaseous and liquid phase. Some flammable gas cylinders contain a pressure relief valve which must be in contact with the vapour phase if the cylinder is to function properly during an emergency.
- Ensure that cylinders are prevented from falling or being knocked over by securing cylinders using a racking system or using a non abrasive, coated chain that will not be abrasive to the cylinder markings and paint work.
- If cylinders have been lying on their side, place the cylinder in the upright position and wait 30 minutes before using.
Note: Some cylinders are designed to be stored on their side. Consult your MSDS or contact your supplier for additional information.
Location of gas stores
Gas stores should be located outdoors, preferably in a secure, cage protected from sunlight. Storage indoors is not recommended unless the building has been designed for that purpose with appropriate fire rated walls and ventilation. Where gases are stored indoors, additional safety considerations and control measures need to be given consideration.
Some general principles apply:
- Gas cylinders should not be stored in areas or structures constructed of combustible materials.
- Gas stored should be located on the ground floor away from other dangerous goods (e.g. Class 3, 4, 5, 6.1, 7, 8 or 9, etc) and combustible liquids (e.g. diesel fuel) stores by at least 5 m or more.
- Storage below ground level should be avoided especially if flammable, toxic or asphyxiant gases are present.
- Heavier than air gases need to be stored with caution to avoid storage where these gases can collect in low lying areas.
- Avoid storing gas cylinders in significant quantities near to or inside protected places where members of the public may assemble (e.g. places of worship, theatres, age care facilities, schools, hospitals, property boundaries).
For LPG or other workplaces where flammable gases are the dominant gas present, please contact the Department of Mines and Energy.
It is recommended that if you store significant quantities of gas in cylinders that you consult AS 4332:2004 The storage and handling of gases in cylinders (non-Queensland Government link) for guidance, or consider the services of a consultant.
Ventilation
- Store gas cylinders in well ventilated areas to prevent build up of escaped gases.
- Where possible gases should be stored outside in a cage.
- Where gases are stored inside a building, a mechanical ventilation system may be required if the natural ventilation is inadequate. Expert advice should be obtained if you are unsure.
- The mechanical ventilation system must be designed so as to capture escaped gases, not ignite flammable gases, ensure workers are not placed at risk of asphyxiation, or exposed to gases above the relevant National Exposure Standard (NES). National Standards are those stated in the NOHSC publication Exposure Standards for Atmospheric Contaminants in the Occupational Environment (non-Queensland Government link) .
- AS 4332 The storage and handling of gases in cylinders is recommended for guidance.
Personal protective equipment
- Eye protection, safety shoes and gloves should be worn in gas cylinder storage and handling areas.
Read more about personal protective equipment.
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