ASTM_D_6669_-_12.pdf

Designation:D666912Standard Practice forSelecting and Constructing Exposure Scenarios forAssessment of Exposures to Alkyd and Latex InteriorPaints1This standard is issued under the fixed designation D6669;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 practice provides procedures for constructing sce-narios for assessment of inhalation exposure to airborneemissions of chemicals released from alkyd or latex paints thatare used indoors.1.2 The indoor environments covered in this practice,interms of considerations for developing exposure scenarios,areresidences and office buildings.1.3 Elements of the exposure scenarios include the productand chemical(s)to be assessed,the indoor environment wherethe product is applied,application of the product,chemicalemissions during and after product application,and location/activity patterns of individuals who may be exposed to theairborne chemical emissions.1.4 Steps to be performed after developing exposurescenarios,such as monitoring,modeling and exposure/riskassessment,also are described.1.5 UnitsThe values stated in SI units are to be regardedas standard.No other units of measurement are included in thisstandard.1.6 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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D1005 Test Method for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD1212 Test Methods for Measurement of Wet Film Thick-ness of Organic CoatingsD1356 Terminology Relating to Sampling and Analysis ofAtmospheresD5116 Guide for Small-Scale Environmental Chamber De-terminations of Organic Emissions from Indoor Materials/ProductsD6178 Practice for Estimation of Short-term Inhalation Ex-posure to Volatile Organic Chemicals Emitted from Bed-ding SetsD6485 Guide for Risk Characterization of Acute and IrritantEffects of Short-Term Exposure to Volatile OrganicChemicals Emitted from Bedding SetsE741 Test Method for Determining Air Change in a SingleZone by Means of a Tracer Gas Dilution3.Terminology3.1 DefinitionsFor definitions of terms used in this prac-tice refer to Terminology D1356.3.2 Definitions of Terms Specific to This Standard:3.2.1 emission profile,na time-series of emission rates ofone or more compounds.3.2.2 exposure scenario,na description of how and wherean estimated exposure occurs,including(1)the location andemission profile of the product or material that causesexposure,(2)the indoor environment where the individual isexposed to airborne emissions from the product or material,and(3)the location and activity patterns of the exposedindividual.3.2.3 potential inhaled dose,nthe product of air concen-tration to which an individual is exposed times breathing ratetimes duration of exposure.3.2.4 short-term exposure,nan exposure of one week orless in duration.4.Summary of Practice4.1 This practice documents the items that need to bedescribed when developing an exposure scenario for assess-ment of exposures to chemicals released indoors from alkyd or1This practice is under the jurisdiction ofASTM Committee D22 on Air Qualityand is the direct responsibility of Subcommittee D22.05 on Indoor Air.Current edition approved April 1,2012.Published May 2012.Originallyapproved in 2001.Last previous edition approved in 2007 as D6669-01a(2007)1.DOI:10.1520/D6669-12.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 latex paints.Important considerations are discussed for eachitem,along with examples or alternatives where appropriate.4.2 An exposure scenarioa description of how and wherean estimated exposure occursincludes the following ele-ments for paints used indoors(that is,interior paints):4.2.1 The product and chemical(s)to be assessed.4.2.2 The indoor environment where the product is applied,including properties such as volume and airflow rate.4.2.3 The amount and rate of product use.4.2.4 Chemical emissions during and after paint application.4.2.5 Locations and breathing rates of an individual,orindividuals,who may be exposed to the airborne chemicalemissions.4.3 Further considerations discussed in this practice includetypical versus conservative assumptions,short-term versuslong-term exposure perspectives,alkyd versus latex paints,andresidential versus office settings.4.4 More t