ISO/TC 92 - Fire safety

This document specifies the procedures to be followed for determining the fire resistance of columns when tested on their own. Two methods of testing are described: — Method A, which is applicable to any type of column and in which the test is conducted with an applied axial load to the column; and — Method B, which is only applicable to protected steel columns with any type of protection system and in which the test is conducted with no load applied to the column and the fire resistance is determined based on steel temperature limits. Method B is only applicable to protection systems that do not support any of the structural load. (See A.6). The application of this test to other untested forms of construction is acceptable when the construction conforms to the direct field of application as given in Annex B of this document, or when subjected to an extended application analysis in accordance with ISO/TR 12470 (series)[ REF Reference_ref_3 \r \h 1 08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0033000000 ]. General guidance on test method A and test method B is given in Annex A.

This document addresses the impact of wildland fires and firefighting activities on the environment (air, water, soil, wildlife and vegetation). It further addresses the impact of wildland fire effluents on exposed human population, including firefighters, as well as food production, land, sea and air traffic, and the built environment. It also describes the environmental impacts of firefighting activities. This document also provides requirements and recommendations to quantify such impacts of wildland fires and to establish post-fire mitigation measures. The wildland fires covered include both natural wildland fires and man-initiated fires, including prescribed burning and agricultural fires, but not peat fires nor coal seam fires. This document is intended to serve as a tool for the development of standard protocols for: — the assessment of local and remote adverse environmental impacts of wildland fires; — the assessment of the effects of smoke and gas exposure on firefighters and exposed human populations. It provides guidance for incident commanders and other responsible or affected parties when decisions regarding firefighting strategies, tactics, and restoration are made. It is intended principally for use by firefighters and investigators, insurance providers, environmental regulatory authorities, civil defence organisations, public health authorities and land owners. This document does not include specific instruction on compiling and reporting the information needed to assess environmental damage caused by a fire incident, nor does it include specific sampling methodologies and analysis requirements. These topics are the focus of documents in the ISO 26367 series. This document does not address either fire damage to the built environment, direct acute toxicity issues, which are covered by other ISO standards (ISO 19706, ISO 13571 and ISO 24679-1), nor does it address economic impact, although the impact of climate change is discussed in Annex D.

This document specifies a large-scale fire test method for measuring the heat release rate (HRR) and the smoke-production rate (SPR) of wall systems. The fire scenario covered in this document is representative of severe fires originating in near wall or corner locations of an exterior or interior wall construction. A severe fire scenario is defined that imparts a heat flux on the order of 100 kW/m2 to the wall systems. These include exterior fire scenarios such as dumpster, balcony storage fires, and vehicle fires originating outside buildings. Fires caused by combustible storage inside unsprinklered or inadequately sprinklered occupancies, such as warehouse and manufacturing occupancies, represent a few examples of severe interior fires. This document measures the HRR and SPR in accordance with ISO 24473. This document also provides guidelines for heat release and smoke production performance limits, developed and used for risk evaluation by the insurance industry. The test method is not applicable to scenarios where a fire initiates within an air cavity, if present, of an exterior wall system. The test method does not incorporate a window structure and is therefore not applicable to fire spread hazards resulting from inadequately protected window openings in a post-flashover fire scenario.

This document specifies a method for assessing the wind-opposed burning behaviour and spread of flame of horizontally mounted floorings exposed to a heat flux radiant gradient in a test chamber, when ignited with pilot flames. Annex A gives details of assessing the smoke development, when required. This method is applicable to all types of flooring, e.g. textile carpet, cork, wood, rubber and plastics coverings as well as coatings. Results obtained by this method reflect the reaction to fire performance of the flooring, including any substrate if used. Modifications of the backing, bonding to a substrate, underlay or other changes of the flooring can affect test results. It cannot be used alone to describe or appraise the fire hazard or fire risk of floorings under actual fire conditions. Information on the precision of the test method is given in Annex B.

This document, used in conjunction with ISO 834-1, specifies a method for determining the fire resistance of door and shutter assemblies designed primarily for installation within openings incorporated in vertical separating elements, such as: — hinged and pivoted doors, — horizontally sliding and vertically sliding doors, including articulated sliding doors and sectional doors, — steel single-skin folding shutters (un-insulated), — other sliding, folding doors, — tilting doors, — rolling shutter doors, — removable panels in walls, — self-closing openable windows. Requirements are included for mechanical pre-conditioning, e.g. “cycling” of door and shutter assemblies prior to the conduct of the fire-resistance test. This document does not cover: — Lift landing doors which are tested in accordance with ISO 3008-2.

This document specifies a test method for determining the fire resistance of various elements of construction when subjected to fire exposure conditions, represented with standardized time-temperature curves. The test data thus obtained will permit subsequent classification on the basis of the duration for which the performance of the tested elements under these conditions satisfies specified criteria.

This document provides three examples of the use of reaction-to-fire test data for fire safety engineering (FSE).

This document provides a review of global testing methodologies related to the vulnerabilities of buildings from large outdoor fire exposures. It also provides information on land use management practices.

This document describes an extended test method determining the resistance to jet fires of passive fire protection (PFP) materials and systems or critical process control equipment. It gives an indication of how PFP material or equipment behaves in a severe jet fire and provides performance data under the specified conditions. It does not include an assessment of other properties of the passive fire protection material such as weathering, ageing, shock resistance, impact or explosion resistance, or smoke production. This document is intended to be complementary to ISO 22899-1. It is intended for use in situations when the required fire conditions or limitations on test specimen size or type preclude application of ISO 22899-1.

This document specifies requirements and makes recommendations for sampling systems for use in small-scale and large-scale fire tests, for the selection of parameters and use of the FTIR instrument, and for the collection and use of calibration spectra. The primary purpose of the methods outlined in this document is to measure the concentrations of chemical species in fire effluents which can be used to: a) provide data for use in combustion toxicity assessment without requiring biological studies; b) allow the calculation of yield data in fire characterization studies; c) provide data for use in mathematical modelling of hazard to life from the fire effluent by characterizing the effluent composition generated by physical fire models; d) characterize the effluent composition of small-scale physical models and larger-scale fires for comparative purposes; e) assist in the validation of numerical fire models; f) set the conditions for exposure in biological studies if required; g) monitor biological studies where used; and h) assist in the interpretation of biological studies where used. This document specifies principles of sampling and methods for the individual analysis, in fire effluents, of airborne volume fractions of carbon monoxide (CO), carbon dioxide (CO2), hydrogen cyanide (HCN), hydrogen chloride (HCl), hydrogen bromide (HBr), nitric oxide (NO), nitrogen dioxide (NO2) and acrolein (CH2CHCHO). NOTE Depending on the optical path length, there can potentially be some saturation of certain spectral lines at high concentration, leading to incorrect volume fractions. In most common cases, a wide concentration range can be measured by an FTIR instrument. Typically, it is in the range of a few µl/l to thousands of µl/l for HCl, HBr, HF, SO2, NOx, and HCN, and up to a few per cent for CO, CO2 and H2O. These mentioned species are only indicative, and many other species could be added.[27] Although not specifically defined in this document, as they were not specifically studied in the SAFIR project,[18] the method presented is also suitable for analysis of other gaseous species, including e.g. hydrogen fluoride (HF) and sulfur dioxide (SO2) with appropriate sampling methods. Calibration methods are provided in this document. Guidance is also given on the recommended cleaning, servicing and operating checks and procedures to be carried out on the FTIR instrument and the sampling systems which are considered essential for maintaining the instrument in a suitable condition for use in fire effluent analysis. Sampling is considered to be an integral part of the whole FTIR measurement methodology and recommendations are made for the design, maintenance and operation of suitable systems. This document provides general recommendations for the sampling and analysis of fire effluents based on best practice as determined from a wide variety of small-scale and large-scale standard and ad hoc fire test studies. This document is not necessarily applicable for use in specific published fire test methods where FTIR is specified as a requirement for effluent sampling and analysis in that particular test. In these cases, the specific requirements for the sampling and analysis by FTIR within the published standard test procedures are followed. However, if such specific requirements have not been published, this edition of this document can be used as a basis for acceptable results.

This document describes techniques and gives guidance concerning interlaboratory trials related to fire effluent analyses. It explains the relative contributions from the physical fire model and analytical techniques to evaluate trueness and fidelity. It also explains the difficulties involved in the interpretation of interlaboratory trials data and with the evaluation of trueness in fire effluent analyses.

This document describes a methodology for the selection of design fire scenarios for use in fire-safety engineering analyses of any built environment, including — buildings, — structures, and — transportation systems. This document specifies procedures for selecting a manageable number of design fire scenarios using a qualitative or semi-quantitative approach. NOTE See ISO 16732-1 for a full quantitative approach using risk assessment.

This document specifies requirements for the determination of methods and fire scenarios for fire threat assessment as a basis for designing and constructing large-scale fire tests. It covers different generic design requirements for large-scale fire test rigs to simulate the real fire scenarios of interest. This document addresses fire threats to people under acute exposure to fire effluents according to the evaluation of tenability conditions. It does not address any chronic effects of that exposure on susceptible populations and firefighters.

This document specifies a method for determining the fire resistance of vertical and horizontal ventilation ducts under standardized fire conditions. The test examines the behaviour of ducts exposed to fire from the outside (duct A) and fire inside the duct (duct B). This document is intended to be used in conjunction with ISO 834-1. This document is not applicable to: a) ducts whose fire resistance depends on the fire resistance performance of a ceiling; b) ducts containing fire dampers at points where they pass through fire separations; c) doors of inspection openings, unless included in the duct to be tested; d) two-sided or three-sided ducts; e) the fixing of suspension devices to floors or walls; f) kitchen extract ducts (see ISO 6944-2). NOTE Annex A provides general guidance and gives background information.

This document specifies rules and requirements concerning the construction and operation of a firebrand generator. This document is applicable to all firebrand generators.

This document specifies a methodology for the design of experiments conducted in the built environment to collect data on evacuation for the following purposes: — for use in fire safety engineering; — for comparing different evacuation experiments realized in different jurisdictions and conditions; — for studying one or more variables; — for achieving a general overview of an evacuation or for testing one or more parameters; — for design safety procedures and training; — for assessing evacuation plan(s); — for reducing uncertainty on the results; — for verifying the relevance of preventive measures implemented before and after building design; — for refining software input parameters and making them more realistic; — for comparing the results obtained with different software; — for verifying and validating evacuation models (for example ISO 16730-1). This document provides guidance in several main areas: initial planning, preparation, the evacuation experiment itself, coding the collected data, data analysis and interpretation and documentation of results. This document sets out the considerations for an evacuation experiment, including geometry of the space, lighting and environmental conditions, occupant characteristics, cue or alarm used, instrumentation and safety considerations. It discusses performance measurements for the evacuation experiment. The results of any experiment depend on all these factors and their interactions, if any. This document does not define a standard evacuation experiment.

This document defines terminology relating to fire safety as used in ISO and IEC International Standards.

This document provides a fire engineering application relative to the fire resistance assessment of a multi-storey timber building according to the methodology given in ISO 24679-1. In an attempt to facilitate the understanding of the design process presented herein, this document follows the same step-by-step procedure as that given in ISO 24679-1. The fire safety engineering approach is applied to a multi-storey timber building with respect to fire resistance and considers specific design fire scenarios, which impact the fire resistance of structural members. A component-level (member analysis) approach to fire performance analysis is adopted in this worked example. Such an approach generally provides a more conservative design than a system-level (global structural) analysis or an analysis of parts of the structure where interaction between components can be assessed. An advantage of the component-level approach is that calculations can be done with the use of simple analytical models or spreadsheets. Advanced modelling using computational fluid dynamics is presented to replicate an actual office cubicle fire scenario and for assessing timber contribution to fire growth, intensity and duration, if any. The thermo-structural behaviour of the timber elements is assessed through advanced modelling using the finite element method. The fire design scenarios chosen in this document are only used for the evaluation of the structural fire resistance. They are not applicable for assessing, for example, smoke production, tenability conditions or other life safety conditions.

This document specifies the requirements governing the application of a set of explicit algebraic formulae for the calculation of specific characteristics of vent flows.

This document specifies the requirements governing the application of a set of explicit algebraic formulae for the calculation of specific characteristics of smoke layers.

This document specifies a test methodology for determining the fire resistance of divisional elements with a fire protection system when subjected to cellulosic or hydrocarbon-pool type fire exposure conditions. This document describes additional test procedures for penetration and cable transit sealing systems intended for non-marine applications but suitable for offshore fixed and mobile installations. The test data thus obtained enables subsequent classification on the basis of the duration for which the performance of the divisional element under these conditions satisfies specified criteria.

This document specifies a test method for determining the fire resistance of pressure vessels with a fire protection system when subjected to standard fire exposure conditions. It does not address vessels cooled by water deluge or water monitor. The test data thus obtained permits subsequent classification on the basis of the duration for which the performance of the pressure vessel under these conditions satisfies specified criteria. The design of the pressure vessel is not covered in this document.

The aim of this document is to provide designers with correlations that can be used in performance-based fire safety design to represent the reduction of movement speed of building occupants when walking in an environment with low visibility, which also contains irritants. Different correlations are provided for deterministic analysis and probabilistic analysis. It is recognized that values for visibility and irritant species concentration can be used as performance criteria in performance-based fire safety design. Performance criteria related to visibility and irritant species are not specified in this document. However, it is always necessary to take into account relevant performance criteria when applying this document. For example, an occupant cannot be assumed to continue moving if a performance criterion related to visibility or irritant species concentration is violated in the design calculations. It is also recognized that fire smoke can have an influence on the cognitive processes of occupants during evacuation. This type of influence on cognition is not covered in this document but can be considered if deemed to have a major impact. Fire smoke can also influence behaviour (e.g. occupants changing their movement path if moving into worsening smoke conditions). This type of behaviour change is not included in this document but can be considered if deemed to have a major impact. In some jurisdictions, it is not permitted to include fire smoke in escape routes as part of the fire safety design; this document is not applicable in such situations.

This document specifies a method of testing the reaction-to-fire properties of an intermediate-scale, box-shaped structure made up of sandwich panels. This test method is a screening method intended for use by producers to reduce the burden of testing in ISO 13784-1, especially with respect to the occurrence of flashover. This test method is not applicable to determining self-standing capability during fire, which is instead examined using ISO 13784-1 or ISO 13784-2. This method is not intended to evaluate the reaction-to-fire performance of facades, or the fire resistance of a product, which can be tested by other means.

This document specifies the requirements governing the application of explicit algebraic formula sets to the calculation of specific characteristics of ejected flame from an opening.

This document specifies the requirements governing the application of a set of explicit algebraic formulae for the calculation of specific characteristics of fire plume.

This document specifies the requirements governing the application of a set of explicit algebraic formulae for the calculation of specific characteristics of ceiling jet flows.

This document provides a review of global testing methodologies related to the vulnerabilities of buildings from large outdoor fire exposures. It also provides information on land use management practices. Some of the test methods outlined in this document have been developed in the context of building fires and extrapolated to external fire exposures.

This document specifies a measuring system that enables the determination of the transmittance and the optical density of smoke emission tests under laboratory conditions. This document also provides the calibration method for the system. This document is an English-language version of DIN 50055, with minor editorial modifications.

This document specifies methodologies for comparing the smoke density and the smoke production rate during fire tests measured by LED (light-emitting diode) with those measured by white light. These methodologies are intended for the identification of suitable LEDs which can be used as alternatives to white light sources.

This document provides an example of a probabilistic assessment of a concrete building by revisiting the structural fire analysis of the concrete building presented in ISO/TR 24679-6, using probabilistic approaches. Specifically, the most heavily-loaded concrete column is analysed probabilistically, using the evaluation in ISO/TR 24679-6 as a starting point. This report only addresses the fire safety objectives related to the structural performance. The analysis within this document therefore forms only part of the overall building fire safety strategy.

This document specifies a test method for testing the capability of a cigarette, positioned on one of three standard substrates, to extinguish or to generate sufficient heat to continue burning, and thus potentially cause ignition of bedding or upholstered furniture. This document is only applicable to factory-made cigarettes that burn along the length of a tobacco column. This is a performance-based document; it does not prescribe any design features of the cigarette that can lead to improved or degraded performance in the test method. The output of this method has been correlated with the potential for cigarettes to ignite upholstered furniture.

This document provides information on the goal, scope, structure, contents and background of the different parts of the ISO 20710 series. The purpose of the ISO 20710 series is to provide information on active fire protection systems according to the design, implementation and maintenance described in ISO 23932-1. The ISO 20710 series is linked to the steps of the performance-based fire safety engineering design process described in ISO 23932-1. This document is not intended as a detailed technical design guide but is intended to provide the guidance necessary for use of the ISO 20710 series by professionals who consider the active fire protection systems at each step presented in ISO 23932-1.

This document is applicable to the sampling and analysis of effluents produced during fires that have the potential to cause harm through environmental contamination. It provides additional requirements to those International Standards already published by ISO TC 92/SC 3 for the sampling and analysis of fire effluents from experimental fires and standard tests, specifically as best practice from previously published methodologies. This document does not include pollutant screening of exposed humans or animals. The principle aims for the sampling and analysis of effluents from fires that can result in environmental contamination is therefore to provide information on: — the nature and concentrations of airborne effluents over time and distance; — the nature and concentrations of solid and liquid ground contaminants and “run-off” compounds from firefighting operations over time and distance. This document is principally of interest for the following parties: — environmental regulatory authorities; — public health authorities; — fire investigators; — property owners. This document is intended to be used together with ISO 26367-1 and ISO 26367-2 in assessments of the environmental impact of fire effluents.

This document aims to simulate the mechanical loads that could be imparted to passive fire protection (PFP) materials and systems by explosions resulting from releases of flammable gas, pressurised liquefied gas or flashing liquid fuels that may precede a fire. This document can also be applicable to dust explosions. Gas explosions can give rise to pressure and drag forces. Damage to PFP materials in a gas explosion can be caused by the direct effects of pressure and drag loadings and by the deflection of the substrate supporting the PFP material. Other parts of the ISO 23693 series will deal with a range of common types of specimen that could be tested against the mechanical loads generated.

This document is a summary of the results of a questionnaire survey, which was conducted to gather information on the current state of performance-based fire safety design (P-B FSD) practices in various countries. The questions include what types of buildings and areas of fire safety systems are being applied, what are the legislative environments in terms of acceptance of P-B FSD, and what documents are needed/desired from ISO/TC 92/SC 4 if the countries/regions wish to adopt P-B FSD.

This document recollects and evaluates physical parameters of filter paper substrates for the determination of ignition propensity of cigarettes according to ISO 12863.

This document specifies requirements for the design, testing and classification of active fire curtains, applicable to any material, that are designed to provide fire and smoke resistance. This document gives recommendations for the application, installation and maintenance of active fire curtains. It is also intended to provide guidance and recommendations for designers, specifiers (e.g. architects, fire engineers), authorities having jurisdiction (AHJs), installers and maintainers for the following: a) creating compartmentation; b) creating protected routes for the purpose of means of escape; c) providing protection at the location of non-fire resisting elements (e.g. in front of non-fire-resisting glazing and doorsets) where required for compartmentation or protecting means of escape; d) providing fire- and smoke-resistant active fire curtains in conjunction with non-smoke rated products protecting openings to reduce leakage of smoke. This document does not apply to the following, which are intended for a different use: — barriers made of part of the building’s structure; — theatre/proscenium textile curtains; — smoke barriers according to ISO 21927-1; — door and shutter assemblies according to ISO 3008‑1. NOTE 1 Smoke barriers used solely for smoke control are covered by ISO 21927‑1. Such smoke barriers are not considered to be active fire curtains. NOTE 2 Requirements of fire doors are given in ISO 3008-1. Requirements for leakage are given in ISO 5925‑1 and further information is given in ISO/TR 5925‑2.

This document describes a method of determining the resistance to jet fires of passive fire protection materials and systems. It gives an indication of how passive fire protection materials behave in a jet fire and provides performance data under the specified conditions. It does not include an assessment of other properties of the passive fire protection material such as weathering, ageing, shock resistance, impact or explosion resistance, or smoke production. Complete I-beams and columns cannot be tested to this document due to disruption of the characteristics of the jet.

This document specifies a test method for the determination of the resistance of fire dampers to heat, and for the evaluation of their ability to prevent fire and smoke from spreading from one fire compartment to another through an air distribution system. This document describes the test requirements related to intumescent fire dampers. It is intended for intumescent fire dampers that are expected to be classified as EI dampers. Without the addition of a mechanical damper, they are unable to achieve the “S” classification, which includes a leakage limit imposed at ambient temperature. This document is not intended to be used for dampers used only in smoke control systems, for testing fire protection devices which only deal with air transfer applications, or for dampers used in suspended ceilings, as the installation of the damper and duct can have an adverse effect on the performance of the suspended ceiling, requiring other methods of evaluation. NOTE "Air transfer" is a low-pressure application through a fire separation door (or wall, floor) without any connection to an air duct.

This document provides guidance for the specification of design fires for use in fire safety engineering analysis of building and structures in the built environment. The design fire is intended to be used in an engineering analysis to determine consequences in fire safety engineering (FSE) analyses.

This document specifies a method for determining the kinetics and yields of gaseous emissions from a specimen exposed to radiant heat in a cone calorimeter. Gas yields are determined by exposing small representative specimens to an external heat flux with or without spark ignition. The concentrations of specific gases in the effluent (smoke) are measured. In combination with calculated masses of gases, their yields from the specimen mass, mass loss or mass loss rate can be determined. This document uses Fourier-Transform Infrared (FTIR) spectroscopy as described in ISO 19702, with additional information on the test apparatus and gas analyser suitable for this specific application.

This document specifies a standard test methodology and resulting field of direct application which are applicable to linear joint fire seal materials used to seal around fire door sets which have been tested in accordance with ISO 3008‑1. The test methodology described in this document uses a smaller-scale fire resistance furnace than that prescribed in ISO 3008‑1.

This document assesses the utility of physical fire models that have been standardized, are commonly used, and/or are cited in national or international standards, for generating fire effluent toxicity data of known accuracy. This is achieved by using the criteria established in ISO 16312-1 and the guidelines established in ISO 19706. The aspects of the models that are considered are: the intended application of the model, the combustion principles it manifests, the fire stage(s) that the model attempts to replicate, the types of data generated, the nature and appropriateness of the combustion conditions to which test specimens are exposed, and the degree of validity established for the model.

This document describes a protocol for the verification and validation of building fire evacuation models. This document mostly addresses evacuation model components as they are in microscopic (agent-based) models. Nevertheless, it can be adopted (entirely or partially) for macroscopic models if the model is able to represent the components under consideration. The area of application of the evacuation models discussed in this document includes performance-based design of buildings and the review of the effectiveness of evacuation planning and procedures. The evacuation process is represented with evacuation models in which people's movement and their interaction with the environment make use of human behaviour in fire theories and empirical observations[5]. The simulation of evacuation is represented using mathematical models and/or agent‑to‑agent and agent-to-environment rules. The area of application of this document relates to buildings. This document is not intended to cover aspects of transportation systems in motion (e.g. trains, ships) since specific ad-hoc additional tests may be required for addressing the simulation of human behaviour during evacuation in these types of systems[6]. This document includes a list of components for verification and validation testing as well as a methodology for the analysis and assessment of accuracy associated with evacuation models. The procedure for the analysis of acceptance criteria is also included. A comprehensive list of components for testing is presented in this document, since the scope of the testing has not been artificially restricted to a set of straightforward applications. Nevertheless, the application of evacuation models as a design tool can be affected by the numbers of variables affecting human behaviour under consideration. A high number of influences can hamper the acceptance of the results obtained given the level of complexity associated with the results. Simpler calculation methods, such as macroscopic models, capacity analyses or flow calculations, are affected to a lower extent by the need to aim at high fidelity modelling. In contrast, more sophisticated calculation methods (i.e. agent-based models) rely more on the ability to demonstrate that the simulation is able to represent different emergent behaviours. For this reason, the components for testing are divided into different categories, enabling the evacuation model tester to test an evacuation model both in relation to the degree of sophistication embedded in the model as well as the specific scope of the model application. In Annex A, a reporting template is provided to provide guidance to users regarding a format for presenting test results and exemplary application of verification and validation tests are presented in Annex B.

This document specifies a test method for evaluating the reaction-to-fire performance of thermal insulating sandwich panel building systems for large rooms and the resulting flame spread on or within the thermal insulating sandwich panel building construction when it is exposed to heat from a simulated internal fire with flames impinging directly on its internal corner. The test method is not intended for evaluating a product's fire resistance. This document is applicable to both freestanding and self-supporting and frame-supported thermal insulating sandwich panel systems, but only to wall and ceiling or roof constructions.

Data collection is of prime importance in fire safety, for several reasons: assessing the effect of any regulation, providing probability and gravity data to fire risk analysis, and the selection of scenarios for examples in fire safety engineering. Statistical data collection of fires is nevertheless collected and analysed from local or national perspectives at the time of publication of this document, making any comparison difficult. A first step identified in the need for harmonization is the issue of terminology. This document defines terminology relating to fire statistical data, in order to supplement ISO 13943 for this specific field of application.

This document specifies a test method for determining the non-combustibility performance, under specified conditions, of homogeneous products and substantial components of non-homogeneous products. Information on the precision of the test method is given in Annex A.

This document specifies the apparatus and procedure for measuring reaction to fire behaviour under reduced oxygen atmospheres. Continuous measurements are made to calculate heat release rates, smoke and specific gas production rates, and mass loss rates. Ignition time measurements are also made and ignition behaviour is obtained. Pyrolysis parameters of specimens exposed to controlled levels of irradiance and controlled levels of oxygen supply can be determined as well. Different reduced oxygen atmospheres in the test environment are achieved by controlling the oxygen volume concentration of input gas fed into the chamber (vitiation) or by controlling the total volume of atmosphere fed into the chamber (ventilation). Ranges of oxygen volume concentration below 20,95 % of oxygen can be studied. The apparatus is not intended to control enriched oxygen conditions above atmospheric 20,95 % oxygen concentration. The measurement system prescribed in this document is based on the cone calorimeter apparatus described in ISO 5660-1. Therefore, this document is intended to be used in conjunction with ISO 5660-1.