Maintain effective operation

In order to maintain effective operation, washing, and sterilisation,

equipment requires regular cleaning and maintenance that meets both manufacturer recommendations and Australian standards.   Describe the daily, weekly, monthly, and ‘as scheduled’ maintenance procedures that should be undertaken for maintaining a steriliser. In your response, include the different testing methods used and the importance of ensuring quality assurance of sterilisation equipment.
Please expand to explain why and how to complete the:
Leak rate test
Helix test
Bowie dick text
Biological indicator test