Chimneys. Components. Concrete flue blocks Ingestion-build-134498 5 Mail room/screening facility

5 Mail room/screening facility

Chemical test methods

Tolerances of perpendicularity have been changed

Marking and accompanying documents

BS EN 14303 does not specify the required level of a given property that shall be achieved by a product to demonstrate fitness for purpose in a particular application

Chimneys. Components. Concrete flue blocks Ingestion-build-134498 5 Mail room/screening facility1 Scope This European Standard specifies the materials, dimensional and performance requirements for precast concrete flue blocks as defined in Clause 3 for use in deleted text chimneys. The flue blocks may be of single wall or multi wall construction. The standard does not apply to flue blocks with back ventilation. This standard does not cover products designated wet (W) in conjunction with corrosion class 3. The standard also specifies a type of