ASTM_F_146_-_12.pdf

Designation:F14612Standard Test Methods forFluid Resistance of Gasket Materials1This standard is issued under the fixed designation F146;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 These test methods cover the determination of the effecton physical properties of nonmetallic gasketing materials afterimmersion in test fluids.The types of materials covered areType 1,Type 2,Type 3,and Type 7 as described in Classifi-cation F104.These test methods are not applicable to thetesting of vulcanized rubber,a procedure that is described inTest Method D471.It is designed for testing specimens cutfrom gasketing materials or from finished articles of com-merce.These test methods may also be used as a pre-treatmentfor Multi-Layer Steel,MLS,or Metal Layer Gasket materialsadhesion testing per Test Method D3359.The pre-treatment ofMLS or Metal Layer Gasket materials pertains only as apre-cursor to the adhesion test.Other physical property testsdescribed in this standard are not applicable to MLS or MetalLayer Gasket materials.1.2 The values stated in SI units are to be regarded as thestandard.The inch-pound units in parentheses are for informa-tion only.1.3 Refer to the current Material Safety Data Sheet(MSDS)and any precautionary labeling provided by the supplier of anymaterials referred to in these test methods.1.4 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:2D412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD471 Test Method for Rubber PropertyEffect of LiquidsD3359 Test Methods for Measuring Adhesion by Tape TestE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodF36 Test Method for Compressibility and Recovery of Gas-ket MaterialsF104 Classification System for Nonmetallic Gasket Materi-alsF147 Test Method for Flexibility of Non-Metallic GasketMaterialsF152 Test Methods for Tension Testing of NonmetallicGasket Materials3.Summary of Test Methods3.1 Appropriate test specimens are subjected to completeimmersion in test fluids.After immersing the specimens in thevarious test fluids,the effect on physical properties is expressedas change in tensile strength,compressibility in softenedcondition,flexibility,volume change,and thickness and weightchanges from the original condition.4.Significance and Use4.1 These test methods provide a standardized procedure tomeasure the effect of immersion in specified fluids underdefinite conditions of time and temperature.The results ofthese test methods are not intended to give any direct correla-tion with service conditions in view of the wide variations intemperature and special uses encountered in gasket applica-tions.The specific test fluids and test conditions outlined wereselected as typical for purposes of comparing different mate-rials and can be used as a routine test when agreed uponbetween the purchaser and the manufacturer.5.Apparatus5.1 Circulating-Hot-Air Ovens,two,capable of maintaining100 6 1C(212 6 2F)and 149 6 2C(300 6 3.6F),oraluminum block fitted for use with test tubes,or heatingmantle,capable of maintaining 100 6 1C(212 6 2F).5.2 Desiccator,containing anhydrous calcium chloride orsilica gel.5.3 Analytical Balance.1These test methods are under the jurisdiction of ASTM Committee F03 onGaskets and are the direct responsibility of Subcommittee F03.40 on Chemical TestMethods.Current edition approved Aug.1,2012.Published September 2012.Originallyapproved in 1972.Last previous edition approved in 2004 as F146 04.DOI:10.1520/F0146-12.2For 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 5.4 Thickness Gage,actuated by dead load weights,havingdial graduations of 0.02 mm(0.001 in.)with anvil not less thanpresser foot diameter of 6.4 6 0.127 mm(0.252 6 0.005 in.).Dead weight loads are listed in Table 1.5.5 Cutting Dies,appropriate for cutting steel,with sharpedges free from nicks or burrs,in the following sizes:5.5.1 25.4 by 50.8 mm(1 by 2 in.),5.5.2 28.6-mm(1.126-in.)diameter,645.2-mm2(1-in.2)area circular die,5.5.3 Test Methods D412,Die A,12.7-mm(0.500-in.)width,and5.5.4 12.7 by 152.4 mm(0.50 by 6 in.).5.6 Conditioned Cabinet