ASTM_C_1183_-_C_1183M_-_13.pdf

Designation:C1183/C1183M13Standard Test Method forExtrusion Rate of Elastomeric Sealants1This standard is issued under the fixed designation C1183/C1183M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers two laboratory procedures fordetermining the extrusion rate of elastomeric sealants for use inbuilding construction.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 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.1.4 There is no known ISO equivalent to this test method.2.Referenced Documents2.1 ASTM Standards:2C717 Terminology of Building Seals and SealantsD1475 Test Method For Density of Liquid Coatings,Inks,and Related ProductsD2452 Test Method for Extrudability of Oil-and Resin-BaseCaulking Compounds3.Terminology3.1 DefinitionsSee Terminology C717 for applicable defi-nitions of the following terms:caulking,compound,elasto-meric and nonsag sealant,sealant,latex sealant.4.Significance and Use4.1 Sealants are supplied with various rheological propertiesranging from pourable liquids to nonsagging pastes.Single-component sealants are supplied ready for use upon openingthe container.Multicomponent sealants are supplied as a basecomponent(s)and a curing agent separately packaged.Aftermixing the two or more parts,the sealant is ready forapplication.This test method is intended to provide a means tomeasure the extrusion rate spanning the range of rheologicalproperties.4.2 This test method also covers the option of measuring thefreeze-thaw and heat stability of such sealants.4.3 This test method provides for an option of either a metalor plastic nozzle.It is intended that the metal nozzle be usedwhen greater precision is required,such as in ASTM specifi-cations.The plastic nozzle may be used for general screeningof sealant properties or for developmental purposes when alarge number of test specimens are being tested.4.4 This test method measures the volume of sealant ex-truded over a given period of time at a given pressure(kPa orpsi).5.Apparatus5.1 High Density Polyethylene Cartridge,with plunger andcap,177 mL 6 fluid oz capacity,with the front end having aninside diameter of 13.7 6 0.05 mm 0.540 6 0.002 in.5.2 Nozzle.5.2.1 Metal Nozzle,threaded to fit threaded end of polyeth-ylene cartridge with the dimensions given in Fig.1.5.2.2 Polyethylene Cartridge Nozzle,64 mm 212in.inlength with 3mm 18in.orifice5.3 Air Supply,to provide 280 6 7 kPa 40 6 1 psi pressurewith appropriate fittings and air lines to attach to an airpowered gun for convenience of use.5.4 Caulking Gun,177 mL 6 fluid oz capacity,air pow-ered.5.5 Freezer,capable of maintaining 17 6 1C 0 6 2F.5.6 Circulating Air Oven,capable of maintaining 50 6 1C122 6 2F.5.7 Time Device,a clock or stop-watch graduated in sec-onds.5.8 Small Container,can,cup,and so forth,as receiver forextruded sealant.1This test method is under the jurisdiction ofASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcommittee C24.20 onGeneral Test Methods.Current edition approved May 1,2013.Published June 2013.Originallyapproved in 1991.Last previous edition approved in 2008 as C1183-04(2008).DOI:10.1520/C1183_C1183M-13.2For 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 5.9 Balance,accurate to 60.1 g 0.035 oz.5.10 Pycnometer,or suitable apparatus to obtain a specificgravity.5.11 Thermometer.5.12 Spatula.6.Test Conditions6.1 Unless otherwise specified by those authorizing thetests,standard conditions as defined by Terminology C717shall be used.7.Procedure A7.1 Condition the unopened container of sealant for at least16 h at standard conditions.7.2 Determine the specific gravity of the sealant as de-scribed in Test Methods D2452 or D1475,or use anotherscientifically correct technique.For multiple componentsystems,mix 100 g sealant 4 oz with the proper amount ofcuring agent.NOTE1Curing times and conditions for multicomponent mixedcompounds may vary.Therefore,the length of time between mixing thecomponents an