17075 Leslie Street, Unit 9
L3Y 8E1

Tel.: +1-888-905-5353

Safe gas cylinder storage

Gas cylinders are mobile pressurised gas containers and are used in numerous industries. For example, when welding in workshops, working in laboratories or as a refrigerant in cooling and freezing applications. There are many hazards associated with handling gases - which in many ways makes them more challenging to store than liquid hazardous materials.

When storing pressurised gas containers, a distinction is made between storage in rooms and storage outdoors. In each case, generally applicable safety regulations as well as specific safety regulations must be observed depending on the storage location. Below we list some of the most important requirements.

Storage or provision?

Watch out for the differences! Many companies need to store gas cylinders to ensure a constant supply. If compressed gas containers are kept in stock, this is considered to be storage. On the other hand, it is considered to be provision if you keep filled gas cylinders to hand in the respective required number and size...

  • to connect to the extraction facility as soon as possible (insofar as this is necessary for the work process),

  • at workplaces for manual use,

  • on loading ramps or areas for subsequent removal within a short time,

  • in salesrooms for the presentation of the product range


The quantity of hazardous substances provided must always be kept to a sensible minimum necessary for the continuation of daily work as determined by the safety officer.

Generally applicable safety regulations

Gas cylinders can pose a considerable hazard if stored incorrectly - for example, uncontrolled escape of gases due to damage to the pressurised gas container or explosion under the influence of high heat. Therefore, gas cylinders must generally be protected from 5 things: high heat, fire, corrosion, mechanical damage and unauthorised access.

Gas cylinders must be protected from high heat

Gas cylinders must not be exposed to fire

Gas cylinders must be stored protected against corrosion

Manual damage must be prevented

Unauthorised persons must be prohibited from entering the store

First of all, requirements for the location of the gas cylinder store have to be taken into account - gas cylinders may not simply be stored in any location on the company premises. It is not permitted to store gas cylinders in stairwells, narrow passages or passageways, garages, work rooms, and rooms below ground level (note special regulations according to TRGS 510 here). Traffic and escape routes must not be obstructed by stored gas cylinders. In addition, a gas cylinder store must not be accessible to the general public. Unauthorized persons must be prohibited from entering the gas cylinder store. The gas cylinder store must be kept under lock and key and appropriate prohibition signs posted. Protected areas shall be calculated and marked according to the hazard posed by the type of gas stored (e.g. Ex). If necessary, all equipment used in the protected area must also be explosion-proof.

A safety distance of more than five meters must be maintained to installations and equipment from which hazards such as excessive heating may arise. Important: the protected area must not extend to neighboring properties or public traffic areas. Pits, sewers, floor drains and cellar areas are to be excluded from the protection area. If combustible gases are stored, the following also applies: No ignition sources in the protected area. A fire extinguisher must also be kept to hand. In storage rooms for combustible gases at least one door must lead directly outside.

According to TRGS 510 there are no restrictions for the combined outdoor storage of different types of gas. However, there are restrictions on combined storage in rooms - especially if flammable, oxidising and acutely toxic or toxic gases are stored (see TRGS 510 paragraph 7). Generally ensure appropriate safety distances between the various gas cylinders in accordance with TRGS 510 and your risk assessment.

To prevent mechanical hazards, compressed gas cylinders should be stored upright if possible. Liquefied gas cylinders may not be stored horizontally. In any case, the gas cylinders must be stored in such a way that they stand safely (or lie down if standing storage is not possible) and are secured against rolling away, falling over and falling down. Hazards from vehicles or other equipment must be excluded. The installation of suitable collision protection can be helpful here. Always make sure that the valves of the gas cylinders are secured with protective caps and, if necessary, lock nuts. No gas cylinders may be dispensed from, filled or otherwise repaired within the store.

Outdoor storage

Generally, storage outdoors is the best alternative, as sufficient ventilation can then be ensured naturally. Open storage is a store that is open on at least two sides or opens on one side if the depth - measured from the open side - is not greater than the height of the open side. A side is considered to be open if it consists of a wire mesh or similar.

Gas cylinder cabinets and gas cylinder containers for outdoor use offer optimum conditions for safe, legally-compliant storage of gas cylinders. They have mesh side walls or ventilation slits in the walls allowing natural ventilation. Canopies ensure sufficient weather protection. Many gas cylinder cabinets and containers also have retention devices or safety chains to effectively prevent the gas cylinders from falling over. Additional advantage: gas cylinder cabinets and containers are generally lockable and therefore meet the requirements to protect the store against unauthorized access.

Indoor storage

An outdoor gas cylinder store is ideal from many points of view, however, it’s not always practical. If additional protective measures are taken, it is also possible to store gas cylinders indoors. In addition to adequate ventilation, the following requirements, among others, must also be met:

  • Ceilings, partitions, and external walls of storage rooms must be at least fire-retardant

  • Storage rooms must be separated from adjacent rooms by self-closing fire-retardant doors

  • Only electrical systems and equipment in explosion-proof design may be used in storage rooms for combustible gases

  • The floor covering must be made of flame-retardant material

  • In storage rooms, a minimum distance of 2 m shall be maintained between gas cylinders containing combustible gases and those containing oxidizing gases.

  • No pits, ducts, floor drains or chimney cleaning openings may be present in storage rooms

  • The distance between compressed gas cylinders and radiators etc. must be at least 0.50 m

We are happy to advise you!

Tailor-made advice, and service fulfillment. Our advisors walk the additional mile. Take advantage of our phone, mail, or on-premise service offers.

Expert advice 1-905-551-9519

Related Articles


Risk assessment for gases

There are many hazards associated with handling gases - but with the right knowledge, risks can be effectively minimized. We provide you with guidance on how to approach a risk assessment for gases.

Read more

Pioneers of Green Mobility rely on safety products from DENIOS

Many DENIOS customers are at the cutting edge of technical developments for the green transport revolution. They are pioneering tomorrow's transport - on the road, rail, water, and in the air. We work closely with them by providing the latest safety technology solutions. Find. out how we are doing this!

Read more

Why do I need special storage for lithium-ion batteries?

A guide to what you really need to know when assessing and purchasing safe storage and charging systems for lithium-ion batteries. We cover why you need special, safe storage for lithium-ion batteries; what can cause lithium-ion battery fires; what you can do to protect your staff and business if you handle, charge and store lithium-ion batteries; and safer solutions for your storage and charging needs with lithium-ion batteries.

Read more

Fire-rated cabinets for chemicals explained

It is important to understand what a fire-rated cabinet does, when and where to use it. This guide gives you details on what you really need to know when assessing your safe storage needs. We cover what fire-rated means; what is a fire-rated cabinet; important legislation and guidance on the safe storage of flammable substances and chemicals; what can be stored in a fire-rated cabinet and where to put your fire-rated storage.

Read more
Load more items 4 of 12 articles were loaded
Log in
Your basketAdded to basket
Go to basket
We would be pleased to provide you with advice!

Give us a call or fill out the form and we will get back to you as soon as possible.

Mon - Fri: 08:00 - 17:00