1、Designation: C1806 14Standard 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 n
2、umber 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
3、 laboratoryenvironment 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 aeros
4、ol foam sealants.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
5、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. Termin
6、ology3.1 DefinitionsRefer 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 fromC
7、1620.3.2 Definitions of Terms 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 thisstan
8、dard as grams per second (g/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
9、repeatable duration foreach test 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 me
10、asure flow rate by hand.4. Summary 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
11、 amountof foam dispensed and the 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
12、rate is calculated from the measured 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 asp
13、ecific temperature and relative humidity 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 di
14、rect responsibility of Subcommittee 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 ASTMStan
15、dards 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 States15.3 Flow Rate can be measured with a testing machine(Procedure B) or with the intended applicato
16、r or dispensingunit (Procedure A).5.4 The test is suitable 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 pr
17、ofessionals.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, which is recommendedby the manufacturer.
18、6.4 Timer or stop watch, accurate to 61 s and fractionthereof.7. Sampling and Test Specimens7.1 Product to be measured shall be unopened.7.2 Minimum of three cans shall be tested and their averageflow rate determined.7.3 Samples to be randomly selected from production lot.7.4 Samples are to represen
19、t the final manufactured productfor which recognition is sought.8. Conditioning8.1 Incubate the three cans of aerosol foam sealant anddispensing mechanism at standard laboratory conditions of23 6 2C and 50 6 5 % relative humidity or at desiredtemperature and relative humidity for a minimum of 48 h p
20、riorto testing.9. Procedure A9.1 Record the conditioning temperature of the foam orlatex sealant.9.2 Attach dispensing mechanism (if meterable, adjust theflow control to full open).9.3 Weigh the full can of foam sealant with attacheddispensing mechanism and record as the start weight.9.4 Shake the a
21、erosol can vigorously for 30 s or as recom-mended in the products instructions.9.5 Start timer, dispense product fully activated for 10 s.9.6 After dispensing for the 10 s duration, weigh thedischarged aerosol can and record the end weight.9.7 With a second can of foam sealant, repeat steps 9.1 9.6.
22、 Record flow rate.9.8 With a third can of foam sealant, repeat steps 9.1 9.6.Record flow rate.10. Calculation or Interpretation of Results10.1 Subtract the end weight from the start weight; thisgives you the total amount dispensed. Divide the amountdispensed by the activation time (g/s). Flow rate (
23、g/s) = (startweight end weight)/10 s.10.2 Average the three flow rates.11. Procedure B11.1 Record the conditioning temperature as defined inSection 8 as the product temperature.11.2 Weight the full can of foam sealant without the cap andrecord as the start weight.11.3 Shake the can for 30 s or follo
24、w manufacturersinstructions.11.4 Invert aerosol can and place in the stationary part of theflow rate machine.NOTE 1Reset the spacing for different product sizes.11.5 Activate the flow rate measurement machine. See Fig.1.11.6 After dispensing for the prescribed duration, weight thedischarge aerosol c
25、an and record the end weight.11.7 With sample cans 2 and 3, repeat steps 11.1 11.6.12. Calculation or Interpretation of Results12.1 Subtract the end weight from the start weight; thisgives you the total amount dispensed. Divide the amountdispensed by the activation time (g/s). Flow rate (g/s) = (sta
26、rtweight end weight) / 10 s.12.2 Average the three flow rates.13. Report13.1 Complete name or designation of product tested.13.2 Record temperature and humidity of the environmentat the time dispensing takes place.13.3 Record aerosol can test temperature.13.4 Label statement of the size or contents
27、of the aerosol inunits of grams, weight ounces, or milliliters, etc.13.5 Make and model of dispensing unit.13.6 Testing agency and location.13.7 Sample location and by whom.13.8 Date of the initiation of the test.13.9 Date of report.13.10 Expiration date of product tested.13.11 Record whether Proced
28、ure A or B was followed.13.12 Average Flow Rate.13.13 A statement that the test or tests were conducted inaccordance with this test method.14. Precision and Bias14.1 No precision or bias have been developed for this testmethod.15. Keywords15.1 aerosol; aerosol foam; air infiltration; foam sealant;la
29、tex foam sealant; polyurethane foam sealantC1806 142ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rig
30、hts, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for
31、 revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing
32、 you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may
33、 be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 1Use: the can is inserted with the valve placed in the small hole at the bottom and then the device is activated compressing the valve areproducible amount for each test.FIG. 1 Flow Rate MachineC1806 143
