1、Designation:D844522aStandard Practice forMeasuring Chemical Emissions from Spray PolyurethaneFoam(SPF)Insulation Samples in a Large-scale VentilatedEnclosure1This standard is issued under the fixed designation D8445;the number immediately following the designation indicates the year oforiginal adopt
2、ion 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 describes procedures for measuring thechemical emissions of volati
3、le and semi-volatile organic com-pounds(VOCs and SVOCs)from spray polyurethane foam(SPF)insulation samples in a large-scale ventilated enclosure.1.2 This practice is used to identify emission rates andfactors during SPF application and up to three days followingapplication.1.3 This practice can be u
4、sed to generate emissions data forresearch activities or modeled for the purpose to informpotential reentry and reoccupancy times.Potential reentry andre-occupancy times only apply to the applications that meetmanufacturer guidelines and are specific to the tested formu-lation.1.4 This practice desc
5、ribes emission testing at ambient roomand substrate temperature and relative humidity conditionsrecognizing chemical emissions may differ at different roomand substrate temperatures and relative humidity.1.5 This practice does not address all SPF chemical emis-sions.This practice addresses specific
6、chemical compounds ofpotential health and regulatory concern including methylenediphenyl diisocyanate(MDI),polymeric MDI(MDI oligo-meric polyisocyanates mixture),flame retardants,aldehydes,and VOCs including blowing agents,and catalysts.Althoughspecific chemicals are discussed in this practice,other
7、 chemicalcompounds of interest can be quantified(see target compoundand generic formulation list in Appendix X1).Other chemicalcompounds used in SPF such as polyols,emulsifiers,andsurfactants are not addressed by this practice.Particulate sizingand distribution are also outside the scope of this pra
8、ctice.1.6 Emission rates during application are determined fromair phase concentration measurements that may include particlebound chemicals.SVOC deposition to floors and ceilings isalso quantified for post application modeling inputs.SVOCemission rates should only be used for modeling purposes fort
9、he duration of data collection.1.7 Four quantification methods are described for isocya-nates.The method chosen should consider safety issues such asflammability,the expected concentration,the presence ofisocyanate aerosol during the phase of interest(during and postapplication),and if the tested SP
10、F is high or low pressure.1.8 This practice references similar standard practices fordesign,construction,performance evaluation,and use of full-scale chambers for chemical emission testing.1.9 This practice references methods for the collection andanalysis of air samples.1.10 This practice applies t
11、o two-component open cell andclosed cell SPF insulation system formulations that are pro-cessed using high-pressure or low-pressure installation pro-cessing practices and equipment.1.11 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstan
12、dard.1.12 This standard does not purport to address all of thesafety concerns,if any,associated with its use.The applicationof SPF in a ventilated enclosure has the potential to generatea hazardous condition putting the individual responsible forspraying inserts at risk.It is the responsibility of t
13、he user of thisstandard to establish appropriate health and safety proceduresand require appropriate certified personal protective equip-ment(PPE)to minimize chemical exposure.Individuals enter-ing the ventilated enclosure during and after SPF application,for any amount of time,are expected to wear
14、appropriate PPE.1.13 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
15、prior to use.1.14 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for the1This practice is under the jurisdiction ofASTM Committee D22 on Air Qualityand is the direct responsibility of S
16、ubcommittee D22.05 on Indoor Air.Current edition approved Sept.1,2022.Published September 2022.Originallyapproved in 2022.Last previous edition approved in 2022 as D8445 22.DOI:10.1520/D8445-22A.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 S