ASTM_E_1355_-_12_2018.pdf

Designation:E135512(Reapproved 2018)An American National StandardStandard Guide forEvaluating the Predictive Capability of Deterministic FireModels1This standard is issued under the fixed designation E1355;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide provides a methodology for evaluating thepredictive capabilities of a fire model for a specific use.Theintent is to cover the whole range of deterministic numericalmodels which might be used in evaluating the effects of fires inand on structures.1.2 The methodology is presented in terms of four areas ofevaluation:1.2.1 Defining the model and scenarios for which theevaluation is to be conducted,1.2.2 Verifying the appropriateness of the theoretical basisand assumptions used in the model,1.2.3 Verifying the mathematical and numerical robustnessof the model,and1.2.4 Quantifying the uncertainty and accuracy of the modelresults in predicting of the course of events in similar firescenarios.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This fire standard cannot be used to provide quantitativemeasures.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2E176 Terminology of Fire StandardsE603 Guide for Room Fire ExperimentsE1591 Guide for Obtaining Data for Fire Growth Models2.2 International Standards Organization Standards:3ISO/IEC Guide 98(2008)Uncertainty of measurement Part 3:Guide to the expression of uncertainty in measure-mentISO 13943(2008)Fire safety VocabularyISO 16730(2008)Fire safety engineering Assessment,verification and validation of calculation methods3.Terminology3.1 Definitions:For definitions of terms used in this guideand associated with fire issues,refer to terminology containedin Terminology E176 and ISO 13943.In case of conflict,thedefinitions given in Terminology E176 shall prevail.3.2 Definitions of Terms Specific to This Standard:3.2.1 model evaluationthe process of quantifying theaccuracy of chosen results from a model when applied for aspecific use.3.2.2 model validationthe process of determining thedegree to which a calculation method is an accurate represen-tation of the real world from the perspective of the intendeduses of the calculation method.3.2.2.1 DiscussionThe fundamental strategy of validationis the identification and quantification of error and uncertaintyin the conceptual and computational models with respect tointended uses.3.2.3 model verificationthe process of determining thatthe implementation of a calculation method accurately repre-sents the developers conceptual description of the calculationmethod and the solution to the calculation method.3.2.3.1 DiscussionThe fundamental strategy of verifica-tion of computational models is the identification and quanti-fication of error in the computational model and its solution.3.2.4 The precision of a model refers to the deterministiccapability of a model and its repeatability.3.2.5 The accuracy refers to how well the model replicatesthe evolution of an actual fire.1This guide is under the jurisdiction ofASTM Committee E05 on Fire Standardsand is the direct responsibility of Subcommittee E05.33 on Fire Safety Engineering.Current edition approved July 1,2018.Published August 2018.Originallyapproved in 1990.Last previous edition approved in 2012 as E1355 12.DOI:10.1520/E1355-12R18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute,11 West 42nd Street,13th Floor,New York,NY 10036.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.Summary of Guide4.1 A recommended process for evaluating the predictivecapability of fire models is described.This process includes abrief