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BS ISO 21843:2023

BS ISO 21843:2023

$167.15

Determination of the resistance to hydrocarbon pool fires of fire protection materials and systems for pressure vessels

Published By Publication Date Number of Pages
BSI 2023 44
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PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
11 4 Symbols
12 5 Principle
6 Test equipment
6.1 General
13 6.2 Burner arrangement
6.3 Fuel supply for burners
6.4 Test fluids
6.5 Test building
14 7 Calibration tests
7.1 General requirements
7.2 Calibration test vessel construction
15 7.3 Calibration test procedure
16 7.4 Analysis of test data
17 7.5 Requirements for successful calibration tests
18 7.6 Environmental conditions
7.7 Tolerances
19 7.8 Calibration and test report
20 8 Construction of fire test specimens
9 Instrumentation
22 10 Fire protection materials and systems
10.1 General
10.2 Applied fire protection materials
24 10.3 Assemblies and mounted fire protection systems
11 Test procedure
25 12 Termination of the test
13 Repeatability and reproducibility
14 Uncertainty of measurement
15 Test report
26 16 Practical application of test results
16.1 Pressure relief valve (PRV)
27 16.2 Propane (or alternative test fluid) fill level
17 Performance criteria
17.1 General
17.2 Substrate temperature
17.3 Coatings and spray-applied materials
28 17.4 Systems and assemblies
18 Factors affecting the validity of the test
18.1 Interruption of the test
18.2 Failure of TCs and DFTs
29 18.3 Failure of pressure transducers
18.4 Test-related tube and pipe
18.5 Variation in environmental conditions
18.6 Directional flame thermometer (DFT) results
30 19 Recommended classification procedures
19.1 General
19.2 Type of fire
19.3 Type of application
19.4 Classification based on temperature rise and period of resistance
19.5 Classification based on duration before failure
31 Annex A (informative) Example piping and instrumentation diagram for test facility
33 Annex B (informative) Directional flame thermometers (DFTs)
34 Annex C (normative) Method of affixing thermocouples
35 Annex D (informative) Radiation-convection (R-C) balance
37 Annex E (informative) Additional classification procedures: Classification based on duration before failure
41 Bibliography

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BS ISO 21843:2023
$167.15