Safe Storage of Gas Cylinders

Key Guidelines for Safe Storage

• Ventilation: Gas cylinders should be stored in well-ventilated areas to prevent the accumulation of gas in the event of a leak. Outdoor storage is preferred, but if cylinders must be stored indoors, ensure the area is well-ventilated and complies with New Zealand safety standards.
• Upright Position: Always store gas cylinders in an upright position to ensure the pressure relief valve functions correctly. This orientation helps prevent leaks and ensures any gas release is safely managed.
• Secure Storage: Gas cylinders should be securely stored to prevent them from tipping over. Use chains or straps to secure cylinders to a stable structure, such as a wall or a storage rack designed for this purpose.
• Protection from Elements: When stored outside, protect gas cylinders from extreme weather conditions. Use a protective cover to shield cylinders from direct sunlight, rain, and frost, which can cause corrosion or pressure issues.
• Distance from Ignition Sources: Store gas cylinders away from sources of ignition, including open flames, electrical equipment, and smoking areas. A minimum safe distance, as specified by New Zealand safety regulations, should be maintained to prevent fires or explosions.
• Access Control: Limit access to gas cylinder storage areas to authorised personnel only. This helps prevent unauthorised handling and potential mishandling of cylinders.
• Signage: Clearly mark storage areas with appropriate hazard signs to alert people to the presence of gas cylinders and the associated risks.
• Regular Inspections: Conduct regular inspections of stored gas cylinders for signs of damage, corrosion, or leaks. Damaged or leaking cylinders should be removed from storage and handled according to safety guidelines for disposal or repair.

Compliance with New Zealand Regulations

In New Zealand, the storage of gas cylinders must comply with the Hazardous Substances and New Organisms Act 1996 (HSNO Act) and relevant standards, including those set by WorkSafe New Zealand. These regulations specify requirements for the safe storage, handling, and transportation of gas cylinders, including:

• Quantity Limits: Regulations may specify limits on the quantity of gas that can be stored in a particular area, depending on the type of gas and the storage location.
• Labelling and Documentation: Gas cylinders must be correctly labelled with the contents and associated hazards. Documentation, including safety data sheets (SDS), should be readily available for all stored gases.

Educating Occupants and Employees

Education and training are vital components of gas cylinder safety. All individuals who handle or work near gas cylinders should be trained on safe handling practices, emergency procedures, and the specific safety measures related to the gases in use. Regular training sessions can help ensure that safety practices are understood and followed.

Safe storage of gas cylinders is a fundamental part of gas safety management. By following these guidelines and adhering to New Zealand’s regulatory requirements, individuals and businesses can significantly reduce the risks associated with gas cylinders, ensuring a safe environment for everyone involved.

Additional Safety Measures

• Storage Area Design: The design of the storage area should facilitate easy access for inspection and removal of gas cylinders. Avoid overcrowding the storage area to prevent accidental knocks and falls of the cylinders. Floors should be level and made of fire-resistant materials.
• Cylinder Caps and Valves: When not connected for use, ensure that cylinder valves are closed tightly and that protective caps cover the valves to protect them from damage and to prevent accidental release of gas.
• Compatibility: Store gas cylinders according to compatibility groups. Different types of gases should be segregated within the storage area to prevent adverse reactions in case of leaks. For example, flammable gases should be stored separately from oxidisers.
• Temperature Control: Avoid exposing gas cylinders to temperatures beyond the recommended limits. Extreme heat can increase the pressure inside cylinders, posing a risk of rupture or explosion.

Emergency Preparedness

• Leak Response Plan: Develop and implement a leak response plan specific to the types of gases stored. This plan should include immediate evacuation procedures, methods for isolating the leak (if safe to do so), and notification of emergency services.
• Fire Safety Equipment: Equip the storage area with appropriate fire safety equipment, including fire extinguishers rated for use with the types of gases stored. Ensure that staff are trained in the use of this equipment.
• First Aid: Provide first aid kits and training in their use, especially for injuries that could result from gas exposure or cylinder mishandling.

Ongoing Education and Training

• Regular Training Sessions: Conduct regular training sessions for all staff involved in the handling and storage of gas cylinders. These sessions should cover safe handling practices, emergency response procedures, and the use of personal protective equipment (PPE).
• Safety Signage and Information: Post clear safety signage in and around the storage area, including hazard warnings, handling instructions, and emergency contact information. Make safety data sheets (SDS) for all gases stored readily accessible to staff.
• Updates on Regulations and Standards: Keep updated on any changes in national and local regulations regarding gas storage and ensure that all practices are updated accordingly. This may involve periodic reviews of storage facilities and procedures.