All LPG cylinders – including automotive tanks, fire extinguishers, SCUBA tanks, breathing apparatus cylinders – in fact any vessel that holds pressure needs to be pressure tested. 

Regulations dictate that all LPG vessels need to be pressure tested every 10 years, fire extinguishers every 5 years, SCUBA tanks need a hydro test every two years with a visual inspection the year between, breathing apparatus vary between 3 – 5 years.  There are strict guidelines that need to be adhered to, to ensure that the vessel being pressure tested is within the set limits relating to rust and dents, to ensure it is safe and will withstand normal use before it needs to be retested. If the vessel is outside these limits then it will be documented as condemned, it will be de-valved and crushed.