Technical Booklet E Fire Safety·Page 101·Table 4.3 Notes
Fire-protecting suspended ceiling access panel requirements
Specifies that access panels in Type Y or Z fire-protecting suspended ceilings must be secured with releasing devices or screw fixings and tested as part of the ceiling assembly.
Any access panels provided in fire-protecting suspended ceilings of Type Y or Z should be secured in position by releasing devices or screw fixings, and they should be shown to have been tested in the ceiling assembly in which they are incorporated.
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