EN 1858:2008+A1:2011

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Materials
5 Reinforcement for handling
6 Surface treatment
7 Form, dimensions and tolerances
8 Performance
9 Designation
10 Marking
11 Product information
12 Evaluation of conformity
Annex A (normative) - Test methods
Annex B (informative) - Examples of concrete flue block
        shapes
Annex C (normative) - Thermal resistance calculation method
Annex D (normative) - Requirements of sampling plan
        according to ISO 2859-1:1999 at an Acceptable
        Quality Level (AQL) of 10% and inspection level
        S2
Annex E (informative) - Recommended test sequence
Annex ZA (informative) - Clauses of this European standard
         addressing the provisions of the EU Construction
         Products Directive
Bibliography

This European Standard specifies the materials, dimensional and performance requirements for precast concrete flue blocks as defined in Clause 3 for use in 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 flue block to dimensionally co-ordinate with masonry unit coursing height, referred to as a type B (Bonding block).This European Standard also applies to storey-height and flue blocks reinforced for handling.NOTEAny reference to the term flue blocks implies both flue blocks and their fittings, except where otherwise indicated.