* The use of alternative intumescent seals is restricted to latched or unlatched single acting single doorsets at maximum dimensions of 926 x 2040mm

* Doorsets fitted with multipoint locks MUST be fitted with the intumescent seals noted in CF5228

* The use of any other Certifire approved hinge is now restricted to:

"Any other Certifire approved hinge providing the hinge dimensions are no greater than 10% in the hinge blade width & 25% in the blade height excluding tolerances stated"

* The use of any other Certifire approved lock / latch is now restricted to:

"Any other Certifire approved lock / latch may be fitted providing the lock / strike plate dimension is no more than 25% than stated in CF5228"

* Maximum diameter of spindle hole 15mm

* Euro profiles cylinder receses in the door face shall follow the shape of the cylinder and result in a tight fit

* Oval profile cylinders NOT permitted

* Electromechanical locks other than those noted in CF5228 datasheet NOT permitted