ASTM_D_8141_-_17.pdf

Designation:D814117Standard Guide forSelecting Volatile Organic Compounds(VOCs)and Semi-Volatile Organic Compounds(SVOCs)Emission TestingMethods to Determine Emission Parameters for Modeling ofIndoor Environments1This standard is issued under the fixed designation D8141;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 is intended to serve as a foundation forunderstanding when to use emission testing methods designedfor volatile organic compounds(VOCs)to determine area-specific emission rates that are typically used in modelingindoor VOC concentrations and when to use emission testingmethods designed for semi-volatile organic compounds(SVOCs)to determine mass transfer emission parameters thatare typically used to model indoor SVOC concentrations.1.2 This guide discusses how organic chemicals are conven-tionally categorized with respect to volatility.1.3 This guide presents a simplified mass transfer modeldescribing organic chemical emissions from a material to bulkair.The values of the model parameters are shown to bespecific to material/chemical/chamber combinations.1.4 This guide shows how to use a mass transfer model toestimate whether diffusion of the chemical within the materialor convective mass transfer of the chemical from the surface ofthe material to the overlying air limits chemical emissions fromthe material surface.1.5 This guide describes the range of different chambers thatare available for emission testing.The chambers are classifiedas either dynamic or static and either conventional or sand-wich.The chambers are categorized as being optimal todetermine either the area-specific emission rate or mass trans-fer emission parameters.1.6 This guide discusses the roles sorption and convectivemass transfer coefficients play in selecting the proper emissionchamber and analysis method to accurately and efficientlycharacterize emissions from indoor materials for use in mod-eling indoor chemical concentrations.1.7 This guide gives recommendations on when to choosean emission test method that is optimized to determine eitherthe area-specific emission rate or mass transfer emissionparameters.For chemicals where the controlling mass transferprocess is unknown,the guide outlines a procedure to deter-mine if the chemical emission is controlled by convective masstransfer of the chemical from the material.1.8 This guide does not provide specific guidance formeasuring emission parameters.1.9 Mechanisms controlling emissions from wet and drymaterials and products are different.This guide considers theemission of chemicals from dry materials and products.Ex-amples of SVOCs that this guide applies to include flameretardants,plasticizers,antioxidants,preservatives,and co-alescing agents(1).2Emission estimations for other SVOCclasses including those generated by incomplete combustion,sprayed,or applied as a powder(pesticides,termiticides,herbicides,stain repellents,sealants,water repellants)(1)mayrequire different approaches than outlined in this guide.1.10 The effects of the emissions(for example,exposure,and health effects on occupants)are not addressed and arebeyond the scope of this guide.1.11 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.12 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.1.13 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.1This guide is under the jurisdiction of ASTM Committee D22 on Air Qualityand is the direct responsibility of Subcommittee D22.05 on Indoor Air.Current edition approved Oct.1,2017.Published October 2017.DOI:10.1520/D8141-17.2The boldface numbers in parentheses refer to the list of references at the end ofthis standard.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 2.Referenced Documents2.1 ASTM Standards:3D1356 Terminology Relating to Sampling and Analysis ofAtmospheres