https://www.bafe.org.uk/bafe-fire-safety-guidance/faqs/why-should-i-use-a-bafe-registered-company

BS 5839-1 is a British Standard that provides guidelines for the design, installation, and maintenance of fire detection and fire alarm systems in non-domestic buildings. It is part of the [...]

To ensure optimal safety, it is recommended that you conduct a fire alarm test on a weekly basis at a designated time. Prior to initiating the test, please notify all [...]

In order to achieve this FRA are carried out and the risk assessor will state the category they recommend. That category is then the minimal level that needs to be [...]