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BS ISO 6944-1:2024

BS ISO 6944-1:2024

$167.15

Fire containment. Elements of building construction – Ventilation ducts

Published By Publication Date Number of Pages
BSI 2024 40
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PDF Catalog

PDF Pages PDF Title
2 undefined
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
4 Apparatus
18 5 Test conditions
19 6 Test specimen
6.1 Size
6.1.1 General
6.1.2 Length
6.1.3 Cross-section
6.2 Number
6.3 Design
6.3.1 General
6.3.2 Minimum separation
20 6.3.3 Configuration of duct A (horizontal only)
6.3.4 Openings in duct B
6.3.5 Joints in horizontal ducts
21 6.3.6 Joints in vertical ducts
6.3.7 Support for vertical ducts
22 6.3.8 Compensators
7 Installation of test specimen
7.1 General
23 7.2 Standard supporting construction
7.3 Non-standard supporting constructions
24 7.4 Restraint of ducts
7.4.1 Inside the furnace
7.4.2 At the penetration point
7.4.3 Outside the furnace
7.4.4 Closure
7.4.5 Fire stopping
7.4.6 Unsupported vertical ducts
8 Conditioning
8.1 General
8.2 Hygroscopic sealing materials
25 9 Application of instrumentation
9.1 Thermocouples
9.1.1 Furnace thermocouples (plate thermometers)
27 9.1.2 Unexposed surface thermocouples
30 9.2 Pressure
31 10 Test procedure
10.1 General
10.2 Control of conditions to permit assessment of integrity
10.2.1 Duct A
10.2.2 Duct B
10.3 Test measurements and observations
10.3.1 Integrity
32 10.3.2 Insulation
10.3.3 Restraint forces and thermal elongation or shortening
10.3.4 Additional observations
10.4 Termination of the test
11 Performance criteria
11.1 Integrity
11.2 Insulation
11.2.1 General
11.2.2 Ducts with internal combustible linings only
33 11.3 Smoke leakage
11.4 Determination of fire resistance
12 Test report
13 Field of direct application of test results
13.1 General
13.2 Vertical and horizontal ducts
34 13.3 Sizes of ducts
13.4 Pressure difference
13.5 Height of vertical ducts
13.5.1 Ducts supported at each storey
13.5.2 Self-loadbearing ducts
13.5.3 Limitations on buckling
35 13.6 Suspension devices for horizontal ducts
13.7 Supporting construction
13.8 Steel ducts
36 Annex A (informative) General guidance
39 Bibliography

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BS ISO 6944-1:2024
$167.15