Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Test equipment
4.1 General
4.2 Furnace
4.3 Perforated plate
4.4 Inlet nozzles (fire test)
4.5 Ambient leakage measuring device
4.6 Pressure sensors for differential pressure control
4.7 Welded connecting tube
4.8 Extract fan connecting duct
4.9 Extraction fan
4.10 Thermocouples
4.11 Oxygen measuring equipment
4.12 Restraint equipment
4.13 Observation window
5 Test conditions
5.1 Differential pressure conditions
5.2 Heating conditions
6 Test specimen
6.1 Size
6.1.1 Length
6.1.2 Cross-section
6.2 Number
6.3 Design
7 Installation of test specimen
7.1 General
7.2 Standard supporting construction
7.3 Duct arrangement
7.4 Restraint of ducts
7.5 Perforated plate
8 Conditioning
8.1 General
9 Application of instrumentation
9.1 Thermocouples
9.1.1 Furnace thermocouples (plate thermometers)
9.1.2 Gas temperature within flow nozzles
9.2 Pressure
9.3 Oxygen measurements
9.4 Observations of reduction of cross-section
10 Test procedure
10.1 Pre-test calibration
10.1.1 Oxygen-measuring instrument
10.1.2 Perforated plate
10.2 Leakage measurement at ambient temperature
10.3 Fire test
10.3.1 Extraction fan
10.3.2 Ignition of furnace
10.3.3 Furnace conditions
10.3.4 Temperatures and pressures
10.3.5 Oxygen measurements
10.3.6 General observations
10.3.7 Reduction of cross-section
10.3.8 Leakage calculations
10.3.9 Termination of test
11 Performance criteria
11.1 General requirements
11.2 Criteria at ambient temperature
11.3 Criteria under fire conditions
11.3.1 General
11.3.2 Leakage
11.3.3 Reduction in cross-section
11.3.4 Mechanical stability
12 Test report
13 Direct field of application of test results
13.1 General
13.2 Duct sizes
13.3 Hangers
13.4 Pressure difference
13.5 Number of sides of duct
Annex A (informative) - Measurement of volume/mass flow
A.1 Hints on measuring volume flow or mass flow
with differential pressure devices
A.2 Density
A.3 Absolute Pressure (barometric pressure)
A.4 Viscosity
A.5 Characteristic data of the inlet nozzles
according to Figure 10
Annex B (informative) - Measurement of oxygen content
Annex C (informative) - The usage of correction factors for
the consideration of different parameters
Bibliography