BS 7899-2:1999
Current
The latest, up-to-date edition.
Code of practice for assessment of hazard to life and health from fire Guidance on methods for the quantification of hazards to life and health and estimation of time to incapacitation and death in fires
Hardcopy , PDF
English
11-15-1999
Committees responsible
Foreword
Introduction
1 Scope
2 Terms and definitions
3 Methods available and hazards to be assessed
4 Options and reliability of methods for determining hazard
to life
5 Toxic hazard assessment method using time-concentration
curves for full scale fires: designed to estimate time to
incapacitation for exposed humans
6 The use of small-scale test data for estimating toxic
potency and toxic hazard
7 Application of toxic potency and toxic hazard calculation
methods
Annex A (informative) Sensory irritancy
Bibliography
Figure 1 - Percentage frequency distribution of non-fire CO
deaths
Figure 2 - Hazard analysis for a furniture fire
Table 1 - Comparison of the characteristics of hazard to life
assessment method options
Table 2 - Reported effects of smoke on visibility and behaviour
Table 3 - Irritant concentrations of common fire gases
Table 4 - Lethal exposure doses of irritants contributing to
asphyxia and lung damage
Table 5 - Simplified look up table for solutions to individual
toxic gas FED equations for incapacitating exposure
doses over a 1 min exposure time
Table 6 - Limiting conditions for tenability caused by heat
Table 7 - Lift threat analysis for the first 6 minutes of a
furniture fire
Table 8 - Revised classification of fire types
Table 9 - Currently accepted 30 min LC50 concentrations for
common fire gases
Table 10 - Toxic potency analysis of materials decomposed under
non-flaming oxidative conditions in the NBS cup
furnace
Table 11 - Toxic potency analysis of materials decomposed under
early, well ventilated flaming conditions in the NBS
cup furnace
Table 12 - Toxic potency analysis of materials decomposed less
efficiently under early, well ventilated flaming
conditions in the NBC cup furnace
Table 13 - Approximate lethal exposure doses (LCt50 gm-3min),
and lethal concentrations (LC50 gm-3) for common
materials under different fire conditions
Table A.1 - Mass loss concentrations of thermal decomposition
products predicted to be painfully irritant
(mouse RD50 gm-3)
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