Messy - just to clarify that point I've cut and pasted this from the CFOA guidance; "Collected Perceived Insights Into and Application of The Regulatory Reform (Fire Safety) Order 2005 For the Benefit of Enforcing Authorities" - its not necessary to keep records but is good practice.
The responsible person must have arrangements in place for the planning, organisation, control, monitoring and review of preventive and protective measures and under specified conditions, must record those arrangements. This means that general fire precautions provided should be subject to ?planning, organisation, control, monitoring and review?. These processes should be recorded under prescribed conditions, but there is no express requirement to record the results of routine testing, although this would be good practice and allow the responsible person to evidence that testing has taken place, should the need arise.