1、Designation:C180614Standard Test Method forMeasuring the Flow Rate of Aerosol Foam Sealants1This standard is issued under the fixed designation C1806;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number
2、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 describes a procedure for determiningthe flow rate of aerosol foam sealants.1.2 Flow rate is determined in a controlled laborator
3、yenvironment with manual dispensing(Method A)or using aflow rate machine(Method B).1.3 Currently,two foam sealant types are applicable to thistest method,single component and polyurethane and latex.1.4 There are not other known test methods specific formeasuring the flow rate of aerosol foam sealant
4、s.1.5 The values stated in SI units are to be regarded asstandard.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-
5、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 DefinitionsR
6、efer to Terminology C717 for defini-tions of the following terms used in this terminology:foamsealant,sealant-latex.Refer to Specification C1620 for defini-tions and classifications of aerosol foam sealants and latexfoam sealants.Temperature and humidity are referenced fromC1620.3.2 Definitions of T
7、erms Specific to This Standard:3.2.1 empty aerosol can,nthe time at which the productflow of the foam sealant is less than 2.0 linear cm of 1.0 g ofcontinuous foam bead during two continuous seconds ofdispensing.3.2.2 flow rate,na unit of measurement expressed for thisstandard as grams per second(g/
8、s).3.2.3 flow rate machine,na testing machine that includesboth a stationary and a moveable member(pneumatic piston).3.2.3.1 DiscussionThe machine must be capable of de-pressing the aerosol can valve at a consistent and repeatablepressure and do so for a consistent and repeatable duration foreach te
9、st operation.3.2.4 mechanical test method,npractice of utilizing atesting machine to measure flow rate without an applicator ordispensing unit.3.2.5 non-mechanical test method,npractice of using anapplicator or dispensing unit to dispense the foam sealantproduct to measure flow rate by hand.4.Summar
10、y of Test Method4.1 Procedure A-Non-mechanical Test Method:4.1.1 The aerosol cans contents are dispensed for a specificamount of time with a consistent amount of hand pressure onthe applicator of the dispensing unit.4.1.2 The flow rate is calculated from the measured amountof foam dispensed and the
11、net time to dispense the aerosol can.4.2 Procedure B-Mechanical Test Method:4.2.1 The aerosol sealant is dispensed for a specific amountof time with the same amount of pressure with a testingmachine(the aerosol can is in the fully activated position).4.2.2 The flow rate is calculated from the measur
12、ed amountof foam dispensed and the net time to dispense the aerosol can.5.Significance and Use5.1 This test method provides a calculated data point re-garding the amount of foam dispensed at one time from asingle can of foam at standard laboratory conditions or aspecific temperature and relative hum
13、idity range 23 6 2C and50 6 5%.5.2 Flow Rate does not predict the performance capabilityof the foam sealant or its suitability for the intended applica-tion.1This test method is under the jurisdiction ofASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcommittee
14、 C24.61 onAerosol Foam Sealants.Current edition approved Dec.1,2014.Published January 2015.DOI:10.1520/C1806-142For 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 standa
15、rds 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 Flow Rate can be measured with a testing machine(Procedure B)or with the intended applicator or dispensingunit(Procedure A).5.4 The test is s
16、uitable for product performance certificationand quality control programs,and can be useful to the generalpublic,aerosol foam sealant manufacturers,distributors,specifiers,architects,contractors,testing laboratories,andother businesses and professionals.6.Apparatus6.1 Testing machine,dispensing unit,or applicator,recom-mended for use with the sealant.6.2 Calibrated Analytical Balance or scale,capable ofaccurately weighing the specimens to the nearest 60.1 g.6.3 Dispensing unit or applicator,whic
