ASTM_C_1536_-_10.pdf

Designation:C153610Standard Test Method forMeasuring the Yield for Aerosol Foam Sealants1This standard is issued under the fixed designation C1536;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 test method determines the quantity of linear unitsof a foam sealant having a specified bead diameter that may beobtained from a single can of aerosol product.Four(4)cans arerequired for each product determination.1.2 The test method is intended to estimate the contents ofthe aerosol container(1)for purposes of label statements,and(2)to provide the user information needed to estimate jobrequirements.1.3 Foam sealants are used for a variety of end-use appli-cations but are primarily intended to reduce air movement inthe building envelope.1.4 Currently,two main foam sealant types are applicable tothis standard:single component polyurethane and latex.1.5 There is no other known standard test method tomeasure aerosol foam sealant yield.1.6 Values are reported in SI units only.Certain apparatusand supply items are referenced in inch-pound units forpurchasing purposes.1.7 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:2C717 Terminology of Building Seals and SealantsC1620 Specification for Aerosol Polyurethane and AerosolLatex Foam Sealants3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 empty aerosol can(of foam sealant)the time atwhich the product flow of the foam sealant is less than 2.0linear cm or 1.0 g of continuous foam bead during twocontinuous seconds of dispensing.3.1.2 symbolsletter symbols are used to represent physicalmeasurements and are defined in Table 1 and Table 2.3.1.3 yieldthe yield for an aerosol can of foam sealant isthe quantity of a specified nominal diameter of foam bead thatis dispensed from a full can as defined by this test method.4.Summary of Test Method4.1 Procedure ASuitable for foams that can be measuredby water displacement(intended only for polyurethane foams).4.1.1 The middle of the aerosol cans contents is dispensedat specified bead size segments.4.1.2 The dispensed foam volume is determined by sub-merging the foam bead segments in water and measuring theweight of the displaced water.4.1.3 The yield(defined as the total bead length of aspecified nominal bead diameter of cured foam per can)iscalculated from the measured foam volume.4.2 Procedure BSuitable only for foam sealants thatcannot be measured by water displacement(Intended only forlatex foams).4.2.1 The middle of the containers contents is dispensed asa specified bead size segments.4.2.2 The volume of the foam bead is directly measuredfrom the dried or cured foam bead segments by directmeasurement.Yield is calculated from these measurements.NOTE1Procedure A uses tap water(see 11.10)to which 4.2 g ofDioctyl Sodium Sulfosuccinate(70%solids)and 1.2 g of SAG 10defoamer per 4 litres may be added as wetting agent/defoamer blend.Thisavoids false readings if air bubbles become a problem.The water ismaintained at 23 6 2C during the submersion part of the test.It ispermissible for a single batch of water to be used up to 48 h.5.Significance and Use5.1 The yield measurement of aerosol foam sealants is usedto indicate the amount of foam sealant that can be obtainedfrom a single can of product.5.2 The yield does not predict the performance capability ofthe foam sealant product or its suitability for the intendedapplication.1This test method is under the jurisdiction ofASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcommittee C24.61 onAerosol Foam Sealants.Current edition approved June 1,2010.Published August 2010.Originallyapproved in 2002.Last previous edition approved in 2003 as C153603.DOI:10.1520/C1536-10.2For 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 5.3 Procedure A was developed for use with products thatcan be volumetrically measured by submersion in water.Procedure B was developed for product that cannot be mea-sured by using a water displacement method.5.4 Yield is often dependent on the bead size dispensed.Extrapolation of test results using data measured for larger sizebeads to estimate smaller sized beads has shown inaccuracies.Since yield will be reported b