1、Designation:D785919Standard Practice forSpraying,Sampling,Packaging,and Test SpecimenPreparation of Spray Polyurethane Foam(SPF)Insulationfor Testing of Emissions Using Environmental Chambers1This standard is issued under the fixed designation D7859;the number immediately following the designation i
2、ndicates 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 describes standardized procedure
3、s for thepreparation,spraying,packaging,and shipping of fresh spraypolyurethane foam(SPF)insulation product samples to betested for their emissions of volatile organic compounds(VOCs)and semi-volatile organic compounds(SVOCs).Theseprocedures are applicable to both closed-cell and open-cell SPFinsula
4、tion products.Potential chemical emissions of interestinclude blowing agents,solvents,aldehydes,amine catalysts,diisocyanates,and flame retardants.1.2 Typically,SPF insulation samples are prepared at onelocation,such as a chemical manufacturing facility or a fieldproduct installation site.The newly
5、prepared samples arepreserved in a sealed bag,placed in a secondary container,andthen shipped to a laboratory for testing.1.3 The spraying of SPF insulation products is only to beperformed by trained individuals using professional sprayingequipment under controlled conditions.The details of thespray
6、ing equipment and spraying procedures are based onindustry practice and are outside of the scope of this practice.1.4 This practice also describes procedures for the labora-tory preparation of test specimens from open-cell and closed-cell SPF insulation product samples.These specimens areprepared fo
7、r testing in small-scale chambers following GuideD5116 and in micro-scale chambers that are described in TestMethod D8142.1.5 Procedures for VOC and SVOC emission testing,gassample collection and chemical analysis are outside of thescope of this practice.Such procedures will need to address thepoten
8、tial for emissions of some SVOCs,for example,aminecatalysts,flame retardant and isocyanates,to adhere to thechamber walls.1.6 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.7 This standard does not purport to address all of th
9、esafety 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.1.8 This international standard was developed in accor-danc
10、e 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 Standard
11、s:2D1356 Terminology Relating to Sampling and Analysis ofAtmospheresD4840 Guide for Sample Chain-of-Custody ProceduresD5116 Guide for Small-Scale Environmental Chamber De-terminations of Organic Emissions from Indoor Materials/ProductsD8142 Test Method for Determining Chemical Emissionsfrom Spray Po
12、lyurethane Foam(SPF)Insulation usingMicro-Scale Environmental Test Chambers3.Terminology3.1 Definitions:3.1.1 For definitions of terms commonly used for samplingand analysis of atmospheres,refer to Terminology D1356.Fordefinitions of terms commonly used when testing products andmaterials for VOC emi
13、ssions,refer to Guide D5116.1This 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 Jan.1,2019.Published January 2019.Originallyapproved in 2013.Last previous edition approved in 20
14、13 as D7859 131.DOI:10.1520/D7859-19.2For 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,
15、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 Reco
16、mmendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.2 Definitions of Terms Specific to This Standard:3.2.1 A-sidepolymeric methylene diphenyl diisocyanate(MDI)consisting predominantly of 4,4-MDI and higher mo-lecular weight oligomers of MDI.3.2.2 B-sidepolyol system,or resin system,consistingmostly of polyol(s),with smaller amounts of catalyst(s),flameretardant(s),blowing agent(s),and other additives.3.2.3 closed-cell SPFSPF that contains cells or voi
