According to AS1851, fire extinguisher test and refill services should occur at the following intervals:
- Portable (including wheeled fire extinguishers) must be tested every 6 months
- The cylinder of the fire extinguisher should be pressure tested and refilled every 5 years
Records of the tests and their dates should be kept on the metal tag attached to each extinguisher. The fire extinguisher tags should only be distributed and modified by a trained individual.