NEVER let oil or grease contact your cylinder or its valve and fittings; use sealants or lubricants when connecting gas fittings or equipment.
NEVER use cylinders as support structures.
NEVER roll them along the ground.
NEVER lubricate cylinder valves and fittings.
NEVER apply sealants (liquid or tape form) or lubricants to any cylinder valves or connecting fittings. High pressure oxygen will react violently with oils and grease and cause a violent explosion or localised ignition leading to injury of the user and damage to equipment.
Oxygen equipment is at most risk from oil and grease so keep greasy hands, rags and gloves away from any part of the cylinder and fittings. Wipe hands clean and try to minimize hand contact with surfaces which might be subject to oxygen under pressure. Keeping cylinder valves clean.
If grit, dirt, oil or dirty water enters the cylinder valve outlet, this may cause damage to the valve internals and result in leakage. Before assembling regulators and fittings make sure there are no particles of dirt in the cylinder valve outlet. If a supply of clean compressed oil free air or nitrogen is available, then, whilst wearing appropriate eye and ear protection, use this to blow out any loose particles of dirt from the valve outlet.
If a supply of clean compressed oil free air or nitrogen is unavailable, then use a clean lint free rag to clean the cylinder valve outlet, in particular the sealing surfaces.
Never open a cylinder valve to clear the outlet. For flammable gases this often leads to the ignition of the escaping gas. Ejected particles and resultant noise can also injure adjacent personnel.
NEVER attempt to repair a cylinder
NEVER disguise damage to cylinders If a cylinder has been involved in a fire, never paint over the discoloured or heat affected areas. Cylinders must never be tampered with or relabelled by anyone other than the cylinder owner.
NEVER mix gases in a cylinder Users must never mix gases in a cylinder; this must only be undertaken by an authorised competent gas specialist personnel with suitable equipment and facilities under controlled conditions.
NEVER transfer gas to another cylinder, never transfer, transfill or siphon gas from one cylinder to another. This can result in serious accidents.
NEVER scrap a cylinder you do not own most gas cylinders are owned by gas companies. There are however small numbers of privately owned cylinders. These can be individuals, companies or Government institutions. Scrap metal merchants and recyclers must never buy gas cylinders as scrap metal unless the cylinders have been condemned by an as authorised department.
NEVER use equipment with cylinders for which they are not intended, do not attempt to make any adaptors or pipe work to cross connect cylinders as this is potentially dangerous.
Cylinders need to be kept cool Do not store cylinders at temperatures greater than 65°C.
All efforts should be made to keep the cylinders well below the maximum ambient air temperature. Under extreme temperatures every effort should be made to keep the cylinders in the shade. Excessive heat – results in an increase in internal pressure.
Excessive heat can reduce the strength of the cylinder resulting in localised bulging at the source of the heat and in extreme cases cylinder rupture. Care must be taken with an oxy-fuel gas torch when in use. DO NOT allow the flame from an oxy-fuel gas torch or other appliance to point onto cylinders.
Handle cylinders carefully Damage – take care in handling cylinders to avoid impact damage. Do not drop cylinders off vehicles when unloading or allow heavy objects to fall on them. Impact damage can potentially reduce the cylinder wall thickness, which could lead to premature cylinder rupture.