BS EN 1457-2:2012

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Flue liners and openings
5 Types of flue liner
6 Materials
7 Tolerances on dimensions
8 Proof load
9 Gas tightness/leakage, thermal resistance and
   soot fire resistance for straight flue liners
10 Durability
11 Water absorption and bulk density
12 Abrasion resistance
13 Condensate resistance and flow resistance
14 Thermal resistance
15 Evaluation of conformity
16 Test methods
17 Designation
18 Marking
Annex A (normative) - Sampling procedures for an AQL
        of 10% and inspection level S2
Annex B (normative) - Thermal resistance
Annex C (normative) - Measurement of the coefficient
        of friction of chimneys
Annex ZA (informative) - Clauses of this European Standard
         addressing the provisions of the EU Construction
         Products Directive
Bibliography

Describes the performance requirements for factory made flue liners and chimney fittings.

This European Standard is a product standard for clay/ceramic flue liners operating under wet conditions with solid walls or walls with vertical perforations for use in the construction of multiwall chimneys and flue pipes which serve to convey products of combustion from fireplaces or heating appliances to the outside atmosphere by negative or positive pressure. It includes the flue liners used for domestic and industrial chimneys which are not structurally independent (free-standing). This European Standard specifies the performance requirements for factory made flue liners and chimney fittings. Testing including thermal testing with or without insulation, marking and inspection are covered by this standard. Flue liners that are specified to this standard will meet the requirements of EN 1457-1 with the same working temperature, pressure, designation and soot fire resistance.