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BS EN 16497-2:2017

$198.66

Chimneys. Concrete System Chimneys – Balanced flue applications

Published By Publication Date Number of Pages
BSI 2017 52
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This European Standard specifies the materials, dimensional and performance requirements for straight concrete system chimneys for balanced flue applications comprising a concrete flue liner and a combustion air supply duct, and a combination of compatible chimney components, which may be concrete flue blocks (see Clause 4), obtained or specified from one manufacturing source with product responsibility for the whole chimney. The European Standard does not apply to concrete system chimneys with back ventilation. This European Standard does not cover products designated wet (W) in conjunction with corrosion class 3. This European Standard also applies to concrete system chimneys constructed from storey-height elements and flue blocks reinforced for handling. This European Standard does not apply to structurally independent (free standing or self-supporting) system chimneys. NOTE Any reference to the term flue blocks implies both flue blocks and their fittings, except where otherwise indicated.

PDF Catalog

PDF Pages PDF Title
9 1 Scope
2 Normative references
3 Terms and definitions
11 4 Form
12 5 Materials
5.1 General
5.2 Reaction to fire
13 5.3 Reinforcement for handling
6 Surface treatment
7 Tolerances on dimensions of individual concrete components
7.1 Declared dimensions
14 7.2 Straightness
7.3 Squareness of ends
8 Performance
8.1 Heat stress resistance
8.2 Heat shock resistance
15 8.3 Thermal resistance
8.4 Gas tightness
8.5 Abrasion resistance
16 8.6 Compressive strength
8.7 Corrosion resistance
8.8 Condensate resistance
17 8.9 Water vapour diffusion resistance
8.10 Bulk density
8.11 Flexural strength under wind loading
18 8.12 Flow resistance
8.12.1 Flow resistance of straight flue duct (rF)
8.12.2 Flow resistance of straight air supply duct (rA)
8.12.3 Flow resistance of fittings
8.13 Freeze–thaw resistance
8.14 Resistance to fire external to external
8.15 Dangerous substances
19 8.16 Relative movement between inner liner and outer wall
8.17 Terminals
8.17.1 Type III
8.17.2 Flow resistance of terminals
8.17.3 Wind velocity pressure of type III terminals
8.17.4 Recirculation factor of type III termination
8.17.5 Pressure equalising opening
8.17.6 Rainwater ingress
20 8.17.7 Icing behaviour
9 Designation
9.1 General
9.2 Temperature class
21 9.3 Pressure class
9.4 Resistance to condensate class
22 9.5 Corrosion resistance class
9.6 Resistance to fire class
10 Marking
23 11 Product information
12 Assessment and verification of constancy of performance (AVCP)
12.1 General
12.2 Initial type testing
12.3 Further type tests
24 12.4 Factory production control
25 Annex A (normative)Test methods
A.1 Squareness of ends test
A.1.1 Apparatus
27 A.1.2 First procedure
A.1.3 Test result — first procedure
A.1.4 Second procedure
A.1.5 Test result — second procedure
A.2 Straightness test
A.2.1 Apparatus
A.2.2 Procedure
28 A.2.3 Test result
A.3 Thermal performance tests
A.4 Thermal resistance
A.4.1 Test Method
29 A.4.2 Test results
A.5 Gas tightness test
A.5.1 Test Method
A.5.2 Test result
A.6 Abrasion resistance test
A.6.1 Test Method
A.6.2 Test result
A.7 Compressive strength test
A.7.1 Apparatus
A.7.2 Preparation of test sample
30 A.7.3 Test procedure
A.7.4 Test result
A.8 Corrosion and condensate resistance test
A.8.1 Test apparatus
33 A.8.2 Acid solution and test solution
A.8.3 Test sample
A.8.4 Conditioning
A.8.5 Test procedure
34 A.8.6 Test results
A.9 Water vapour diffusion resistance
A.9.1 Test method
A.9.2 Test results
A.10 Flexural strength under wind load
A.10.1 Principle
35 A.10.2 Preparation of test specimen
A.10.3 Test procedure
A.10.4 Test result
A.11 Bulk density
A.11.1 Apparatus
A.11.2 Procedure
A.11.3 Test result
36 A.12 Ultimate compressive strength
A.12.1 Test procedure
A.12.2 Test result
37 Annex B (informative)Examples of concrete flue block shapes
B.1 General
38 B.2 Multi-flued flue blocks
39 Annex C (normative)Thermal resistance calculation method
C.1 Thermal resistance of the individual element
C.2 Thermal resistance of the chimney and of enclosures
40 Annex D (normative)Requirements of sampling plan according to ISO 28591:1999 at an Acceptable Quality Level (AQL) of 10 % and inspection level S2
D.1 Acceptability determination
D.1.1 Single sampling
D.1.2 Double sampling
D.2 Normal inspection
42 D.3 Reduced Inspection
43 D.4 Reduced to normal inspection
D.5 Tightened inspection
D.6 Tightened to normal inspection
D.7 Discontinuation of inspection
44 Annex E (informative)Recommended test sequence for performance characteristics
45 Annex ZA (informative)Relationship of this European Standard with Regulation (EU) No.305/2011
BS EN 16497-2:2017
$198.66