PSA Specification

The Property Services Agency (PSA) Method of Building Performance Specification ‘Platform Floors (Raised Access Floors)’ MOB PF2 PS, became the industry standard in the UK for about 20 years until the recent arrival of the BS EN 12825:2001 specification. It consists of performance requirements verifiable by standard testing procedures. Requirements covered include dimensional accuracy, moisture and thermal movement, strength grades, fire safety, floor panel finishes and electrical bonding and continuity. The last edition (March 1992) of the MOB PF2 PS was given the suffix SPU (single project use). It was produced in conjunction with the Access Flooring Association (AFA) and includes changes that affect nomenclature making it more relevant for non-government contracts; the performance requirements and test methods remain unchanged.

The table below shows the structural performance of each of the grades of raised access floor outlined by this specification along with typical areas of application: