• BS ISO 13344:2015

    Current The latest, up-to-date edition.

    Estimation of the lethal toxic potency of fire effluents

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-01-2016

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Principle
    5 Significance and use
    6 Apparatus
    7 Hazards
    8 Test specimens
    9 Calibration of the apparatus
    10 Procedures
    11 Calculations
    12 Test report
    13 Precision and bias
    Annex A (informative) - Optional bioassay for
            confirmation of predicted LC[50] values
    Bibliography

    Abstract - (Show below) - (Hide below)

    Explains a means for estimating the lethal toxic potency of the fire effluent produced from a material while exposed to the specific combustion conditions of a physical fire model.

    Scope - (Show below) - (Hide below)

    This International Standard provides a means for estimating the lethal toxic potency of the fire effluent produced from a material while exposed to the specific combustion conditions of a physical fire model. The lethal toxic potency values are specifically related to the fire model selected, the exposure scenario and the material evaluated.

    Lethal toxic potency values associated with 30-min exposures of rats are predicted using calculations which employ combustion atmosphere analytical data for carbon monoxide (CO), carbon dioxide (CO2), oxygen (O2) (vitiation) and, if present, hydrogen cyanide (HCN), hydrogen chloride (HCl), hydrogen bromide (HBr), hydrogen fluoride (HF), sulfur dioxide (SO2), nitrogen dioxide (NO2), acrolein and formaldehyde. The chemical composition of the test specimen may suggest additional combustion products to be quantified and included. If the fire effluent toxic potency cannot be attributed to the toxicants analysed (Annex A), this is an indication that other toxicants or factors must be considered.

    This International Standard is applicable to the estimation of the lethal toxic potency of fire effluent atmospheres produced from materials, products or assemblies under controlled laboratory conditions and should not be used in isolation to describe or appraise the toxic hazard or risk of materials, products or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire hazard assessment that takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use; see ISO 19706.

    The intended use of fire safety-engineering calculations is for life-safety prediction for people and is most frequently for time intervals somewhat shorter than 30 min. This extrapolation across species and exposure intervals is outside the scope of this International Standard.

    This International Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this International Standard to establish appropriate safety and health practices.

    General Product Information - (Show below) - (Hide below)

    Committee FSH/16
    Development Note Supersedes 94/306092 DC. (08/2001) Supersedes 04/30097971 DC. (09/2007)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 5908-2:2012 Fire and explosion precautions at premises handling flammable gases, liquids and dusts Guide to applicable standards and regulations
    12/30258581 DC : 0 BS 5908-2 - FIRE AND EXPLOSION PRECAUTIONS AT PREMISES HANDLING FLAMMABLE GASES, LIQUIDS AND DUSTS - PART 2: GUIDE TO APPLICABLE STANDARDS AND REGULATIONS
    09/30189801 DC : 0 BS 8524-1 - ACTIVE FIRE CURTAIN BARRIER ASSEMBLIES - PART 1: SPECIFICATION
    BS 6336:1998 Guide to the development of fire tests, the presentation of test data and the role of tests in hazard assessment
    PD 6686:2006 Guidance on directives, regulations and standards related to prevention of fire and explosion in the process industries
    BS 7990:2003 Tube furnace method for the determination of toxic product yields in fire effluents

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 13943:2017 Fire safety — Vocabulary
    ISO 19702:2015 Guidance for sampling and analysis of toxic gases and vapours in fire effluents using Fourier Transform Infrared (FTIR) spectroscopy
    ISO 13571:2012 Life-threatening components of fire Guidelines for the estimation of time to compromised tenability in fires
    ISO 19706:2011 Guidelines for assessing the fire threat to people
    CFR 40(PTS700-END) : JUL 88 PROTECTION OF ENVIRONMENT - ENVIRONMENTAL PROTECTION AGENCY
    ISO 19701:2013 Methods for sampling and analysis of fire effluents
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