1、Designation:D118303(Reapproved 2019)Standard Practices forResistance of Adhesives to Cyclic Laboratory AgingConditions1This standard is issued under the fixed designation D1183;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year
2、 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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 These practices cover the determin
3、ation of the resistanceof adhesives to cyclic accelerated service conditions by expos-ing bonded specimens to conditions of high and low tempera-tures and high and low relative humidities.The extent ofdegradation is determined from changes in strength propertiesas a result of exposure to the test co
4、nditions(Note 1).It isrecognized that no accelerated procedure for degrading mate-rials correlates perfectly with actual service conditions,andthat no single or small group of laboratory test conditions willsimulate all actual service conditions.Consequently,care mustbe exercised in the interpretati
5、on and use of data obtained inthis practice.The test condition,the number of cycles of thetest condition to be used,the particular strength property to beused to determine the extent of degradation,and whether testspecimens or test panels are to be used,are specified in thematerial specification.NOT
6、E1These practices/conditions are intended for use with speci-mens described in the approvedASTM strength test methods for adhesivesas follows:Test Methods D897,D903,D906,D950,D1002,D1062,and TestMethod D1344.1.2 The values stated in SI units are to be regarded as thestandard.1.3 This standard does n
7、ot 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international stand
8、ard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Refere
9、nced Documents2.1 ASTM Standards:2D897 Test Method for Tensile Properties of Adhesive BondsD903 Test Method for Peel or Stripping Strength of Adhe-sive BondsD906 Test Method for Strength Properties of Adhesives inPlywood Type Construction in Shear by Tension LoadingD907 Terminology of AdhesivesD950
10、Test Method for Impact Strength of Adhesive BondsD1002 Test Method for Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Ten-sion Loading(Metal-to-Metal)D1062 Test Method for Cleavage Strength of Metal-to-Metal Adhesive BondsD1141 Practice for the Preparation of Substi
11、tute OceanWaterD1344 Test Method for Testing Cross-Lap Specimens forTensile Properties of Adhesives(Withdrawn 1985)33.Terminology3.1 DefinitionsMany terms in these practices are definedin Terminology D907.4.Significance and Use4.1 These practices provide information on the resistance tocyclic labora
12、tory aging.5.Apparatus5.1 Circulating Air Ovens,capable of being controlled at therequired temperatures.5.2 Rooms,Cabinets,or Desiccators,with means for con-trolling the relative humidity of the air in them at the requiredvalues.1These practices are under the jurisdiction of ASTM Committee D14 onAdh
13、esives and are the direct responsibility of Subcommittee D14.80 on MetalBonding Adhesives.Current edition approved April 1,2019.Published April 2019.Originallyapproved in 1951.Last previous edition approved in 2011 as D1183 03(2011).DOI:10.1520/D1183-03R19.2For referenced ASTM standards,visit the AS
14、TM 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM Internatio
15、nal,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and
16、Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 NOTE2The following saturated salt solutions give 85 to 90%relativehumidity:(1)Potassium chloride at 23 C(2)Manganous sulfate at 38.5 C5.3 Vessels with Water,for immersion tests.5.4 Substitute Ocean Water,with the following composition(Note 3):CompoundConcentration,g/LNaCl24.53MgCl26H2O11.11Na2SO44.09CaCl21.16KCl0.695NaHCO30.201KBr0.101H3BO30.027SrCl26H2O0.042NaF0.003NOTE3These requirements for comp
