BS 1289-1:1986 Flue blocks and masonry terminals for gas appliances - Specification for precast concrete flue blocks and terminals
Withdrawn
Flue blocks for use in bonded or non-bonded flues with gas appliances complying with BS 5258. Materials, dimensions, tolerances, joints, compressive strength, flow resistance. An appendix gives recommendations for design and construction of precast concrete flue block systems.