1、Designation:D834521Standard Test Method forDetermination of an Emission Parameter for PhthalateEsters and Other Non-Phthalate Plasticizers from PlanarPolyvinyl Chloride Indoor Materials for Use in Mass TransferModeling Calculations1This standard is issued under the fixed designation D8345;the number
2、 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 Planar
3、 polyvinyl chloride(vinyl)indoor materials cancontain semi-volatile organic compounds(SVOCs),such asphthalate esters and other non-phthalate plasticizers,that canemit into indoor air.Phthalate esters and other non-phthalateplasticizers that have been measured using this standard arelisted in Table 1
4、 and are referred to as SVOCs in the remainderof this document.1.2 The SVOCs listed in Table 1 are present in a wide rangeof products and not limited to planar polyvinyl chloride(vinyl)indoor materials.This standard discusses specific planar poly-vinyl chloride materials due to method development an
5、dassociated quality control data produced from testing thesematerials.The materials inclusion in this standard does notindicate the SVOC source strength of specific polyvinylchloride planar materials relative to other products.1.3 This method describes the design of a 1 Lenvironmentalchamber with mi
6、nimal exposed chamber walls.1.4 This method measures the steady-state gas phase con-centration of SVOCs in the chamber.Samples of products aretested at specified conditions of temperature,airflow rate,andelapsed time in a specially designed chamber with dry air.Airsamples are collected periodically
7、using sorbent samplingtubes at the chamber exhausts at controlled flow rates,and thenanalyzed by thermal desorption-gas chromatography-massspectrometry(TD-GC-MS).1.5 This method determines the SVOC convective gas-phase mass transfer coefficient across the material surface,hm,from the known dimethyl
8、phthalate mass transfer coefficient inthe chamber(1).21.6 Using the steady-state gas phase concentration and masstransfer coefficient,the method estimates the gas-phase con-centration of SVOC in equilibrium with the material phase(y0)at a specified temperature.The obtained y0data can be used topredi
9、ct emissions in real indoor environments.However,ex-posure modeling is beyond the scope of this method.For moreinformation on mass transfer emission and exposure modelingsee Little et al.(2),Liang and Xu(1,3),and Guo(4).1.7 The results for gas phase concentration change in thechamber with time,stead
10、y-state gas phase SVOC concentra-tions(yss),and y0,only represent the conditions specified in thetest method and are the result of assumptions built into themethod such as instantaneous equilibrium at the source/airinterface.The results may not be representative of thosecollected under other test co
11、nditions(that is,temperature orflow rate)or comparable with other SVOC test methods.1.8 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.9 This standard does not purport to address all of thesafety concerns,if any,associated wit
12、h 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.1.10 This international standard was developed in accor-dance with internationally recognized pri
13、nciples 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:3D1193 Specification for Reagent Wa
14、terD1356 Terminology Relating to Sampling and Analysis ofAtmospheres1This test method is under the jurisdiction of ASTM Committee D22 on AirQuality and is the direct responsibility of Subcommittee D22.05 on Indoor Air.Current edition approved March 1,2021.Published December 2021.DOI:10.1520/D8345-21
15、.2The boldface numbers in parentheses refer to a list of references at the end ofthis standard.3For 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 Sum
16、mary page onthe ASTM website.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.1D5116 Guide for Small-Scale Environmental Chambe
