1、Designation:D7859131Standard 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
2、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.1NOTEEditorial changes were made in April 2013.1.Scope1.
3、1 This practice describes standardized procedures 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 applic
4、able to both closed-cell and open-cell SPFinsulation 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 facilit
5、y or a fieldproduct installation site.The newly 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 und
6、er controlled conditions.The details of thespraying 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 insulatio
7、n product samples.These specimens areprepared for testing in small-scale chambers following GuideD5116 and in micro-scale chambers that are described inPractice D7706.1.5 Procedures for VOC and SVOC emission testing,gassample collection and chemical analysis are outside of thescope of this practice.
8、Such procedures will need to address thepotential 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 s
9、tandard 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 AS
10、TM Standards: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/ProductsD7706 Practice for Rapid Screening of VOC Emissionsfro
11、m Products Using Micro-Scale Chambers3.Terminology3.1 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 emissions,refer to Guide D5116.3.2 A-Sidepolymeric methylen
12、e diphenyl diisocyanate(MDI)consisting predominantly of 4,4-MDI and higher mo-lecular weight oligomers of MDI.3.3 B-sidepolyol system,or resin system,consistingmostly of polyol(s),with smaller amounts of catalyst(s),flameretardant(s),blowing agent(s),and other additives.3.4 Open-cell SPFSPF that con
13、tains cells or voids that arelargely interconnected.Open-cell SPF insulation typically hasa density between 6.4 to 9.6 kilograms per cubic metre whenfully cured.1This test method is under the jurisdiction of ASTM Committee D22 on AirQuality and is the direct responsibility of Subcommittee D22.05 on
14、Indoor Air.Current edition approved April 1,2013.Published April 2013.DOI:10.1520/D7859-13E01.2For 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 Summ
15、ary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.5 Closed-cell SPFSPF that contains cells or voids thatare not interconnected.Closed-cell SPF insulation typically hasa density between 24 to 32 kilograms per cu
16、bic metre whenfully cured.4.Summary of Practice4.1 This practice is applicable to open-cell and closed-cellspray polyurethane foam(SPF)insulation.Procedures aredescribed for the preparation,spraying,packaging,shipping,and test specimen preparation of small,representative samplesof these products.The samples are then sent to a laboratory andtested for emissions of volatile and semi-volatile organiccompounds in environmental test chambers described in GuideD5116 and Practice D7706.4.2 Samples are
