BS DD240-1(1997) : 1997

Foreword
Guide
Introduction
1 Scope
2 References
3 Definitions and notations
4 Application
5 Qualitative design review
6 Quantitative analysis
7 Assessment against criteria
8 Reporting and presentation
9 Procedure for the QDR
10 Building, environment and occupant characterization
11 Sub-system 1: initiation and development of fire within
    the enclosure of origin
12 Sub-system 2: spread of smoke and toxic gases within
    and beyond the enclosure of origin
13 Sub-system 3: spread of fire beyond the enclosure of
    origin
14 Sub-system 4: detection of fire and activation of fire
    protection systems
15 Sub-system 5: fire service intervention
16 Sub-system 6: evacuation
Annexes
A (informative) Components of a fire safety system
B (informative) Selected data for use in probabilistic
    risk assessment
C (informative) Bibliography
D (informative) Fire safety management
Tables
1 Checklist for review of architectural design
2 Maximum tolerable exposure doses and concentrations
    for individual combustion products for 5-minute and
    30-minute exposures
3 Tenability limits for smoke obscuration
4 Tenability limits for heat
5 Property groups and example objects found in and
    around a building
6 Checklist for development of trial design
7 Fire load density in different occupancies
8 Calorific value of typical materials
9 Fire growth parameters
10 Design fire growth rates
11 Suggested heat release rates per unit area
12 Representative smoke mass conversion factors for
    cellulosics and plastics in well-ventilated flaming
    and non-flaming conditions
13 Effective emission coefficient K, for various materials
14 Typical values for the coefficient of discharge, cd
15 Fire products for well ventilated flaming combustion
16 Response time indices for sprinklers
17 Lower response time limit for heat detectors
    conforming to EN 54-5
18 Test fires specified in BS 5445:Part 9
19 Maximum optical density at activation for smoke detectors
    conforming to BS 5445:Part 7
20 Recommended standards of fire cover in the UK
21 Estimated recognition times
B.1 Overall probability of fire starting in various types
    of occupancy
B.2 Probability of fire starting within a given floor area
    for various types of occupancy
B.3 Probability of fire starting in various types of
    occupancy of a given size
B.4 Fatality and injury rate per fire in various types of
    occupancy
B.5 Extent of structural damage (average of all reported
    fires)
B.6 Fire sizes in sprinklered and unsprinklered premises
B.7 Fires spreading beyond room of origin in single-
    storey buildings
B.8 Fires spreading beyond room of origin in multi-
    storey buildings
B.9 Probability of fire protection systems failing to
    operate as designed
Figures
1 Basic fire safety design process
2 Example of a time line comparison of fire development
    and evacuation
3 Information bus
4 Example of design process for safe evacuation of
    occupants
5 Example of part of an event tree
6 AND gate
7 OR gate
8 Steps in life risk analysis
9 Conceptual illustration of continuous fire growth
10 Fire growth in an uncontrolled room fire
11 Heat release rate curves for uncontrolled fires
12 Effect of suppression
13 Effect of partially successful suppression
14 Development of a flaming fire
15 Flowchart for buoyant smoke spread
16 Fire spread beyond enclosure of origin
17 Detection and activation
18 Fire service intervention
19 Components of the evacuation time
20 Evacuation
List of references

Provides guidelines for applying of scientific and engineering principles to protecting people and property from fire. Gives a framework for an engineering approach to the achieving of fire safety in buildings and for the assessment of effectiveness of the total fire safety system in achieving the design objectives.