1、Designation: D 1183 03Standard Practices forResistance of Adhesives to Cyclic Laboratory AgingConditions1This standard is issued under the fixed designation D 1183; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last r
2、evision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 practices cover the determination of
3、 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 condition
4、s (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 interpretation
5、 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, is specified in thematerial specification.N
6、OTE 1These practices/conditions are intended for use with speci-mens described in the approved ASTM strength test methods for adhesivesas follows:Test Methods D 897, D 903, D 906, D 950, D 1002, D 1062, andMethod D 1344.1.2 The values stated in SI units are to be regarded as thestandard.1.3 This sta
7、ndard 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
8、ASTM Standards:D 897 Test Method for Tensile Properties of AdhesiveBonds2D 903 Test Method for Peel or Stripping Strength of Adhe-sive Bonds2D 906 Test Method for Strength Properties of Adhesives inPlywood Type Construction in Shear by Tension Loading2D 907 Terminology of Adhesives2D 950 Test Method
9、 for Impact Strength of Adhesive Bonds2D 1002 Test Method for Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Ten-sion Loading (Metal-to-Metal)2D 1062 Test Method for Cleavage Strength of Metal-to-Metal Adhesive Bonds2D 1141 Specification for Substitute Ocean Water3D
10、 1344 Methods of Testing Cross-Lap Specimens for Ten-sile Properties of Adhesives43. Terminology3.1 DefinitionsMany terms in these practices are definedin Terminology D 907.4. Significance and Use4.1 This practice provides information on the resistance tocyclic laboratory aging.5. Apparatus5.1 Circu
11、lating 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.NOTE 2The following saturated salt solutions give 85 to 90 % relativehumidity:(1) Potassium chlori
12、de at 23C(2) Manganous sulfate at 38.5C5.3 Vessels with Water, for immersion tests.5.4 Substitute Ocean Water, with the following composition(Note 3):1These practices are under the jurisdiction of ASTM Committee D14 onAdhesives and are the direct responsibility of Subcommittee D 14.80 on MetalBondin
13、g Adhesives.Current edition approved April 10, 2003. Published May 2003. Originallyapproved in 1951. Last previous edition approved in 1996 as D 1183 96e1.2Annual Book of ASTM Standards, Vol 15.06.3Annual Book of ASTM Standards, Vol 11.02.4Discontinuedsee 1986 Annual Book of ASTM Standards, Vol 15.0
14、6.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Compound Concentration, g/LNaCl 24.53MgCl26H2O 11.11Na2SO44.09CaCl21.16KCl 0.695NaHCO30.201KBr 0.101H3BO30.027SrCl26H2O 0.042NaF 0.003NOTE 3These requirements for composition of subst
15、itute ocean waterare identical with those prescribed for substitute ocean water, withoutheavy metals, in Specification D 1141.5.5 Other Apparatus as required by the ASTM method forthe particular strength property used to evaluate the extent ofdegradation.6. Test Specimens6.1 The number and type of t
16、est specimens meet therequirements of the particular strength method used to evaluatethe extent of degradation. Test panels may also be exposed tothose conditions, after which the specified test specimens shallbe cut from the panels. One set of specimens shall be testedwithout exposure to the accele
17、rated service condition, andanother set after exposure.7. Conditioning7.1 Condition all specimens for 7 days at a relative humidityof 50 6 2 % at 23 6 1C.8. Procedure8.1 Subject specimens or panels to the number of cycles ofone of the test conditions listed in Table 1, as specified in thematerial sp
18、ecifications.8.2 Place the specimens or panels in the containers so thatfree access of the controlled atmosphere is obtained for at least75 % of the total area of each test specimen or panel.8.3 After completion of the exposure of the test specimensor panels to one of the test conditions in Table 1,
19、 condition thetest specimens or panels for 7 days at a relative humidity of50%at236 1C (73.4 6 2F) and then test them immediatelyfor the specified strength properties, unless otherwise stated inthe material specifications.9. Calculations9.1 The average strength value determined in accordancewith the
20、 designated method of test is used to calculate thechange in strength, as follows:R 5 Y 2 X!/X3 100 (1)where:R = percent change in strength as a result of exposure to thetest conditions,X = initial strength, andY = strength after exposure to the test conditions.The sign of the result will indicate w
21、hether there is a gain( + ) or loss () in strength.9.2 Specimens or panels that delaminate during the testshave a change in strength of 100 %. Specimens that delami-nate during the tests before the strength test can be made havea strength of 0, included in calculating the average strength andstandar
22、d deviation.10. Report10.1 Report the following information:10.1.1 Title and designation of strength method used,10.1.2 Information required in particular strength methodused,10.1.3 Test condition,10.1.4 Number of cycles,10.1.5 Whether test specimens or panels were used,10.1.6 Percentage change in s
23、trength,10.1.7 Changes in appearance of test specimens or panels,10.1.8 Number of specimens which delaminated and per-cent delamination during the test before the strength tests weremade,10.1.9 Standard deviation, and10.1.10 Average wood failure, in percent, for bonded woodspecimens.11. Precision an
24、d Bias11.1 Precision and bias is a function of the test method used.12. Keywords12.1 adhesives; humidity; laboratory aging; temperature;test conditionsD1183032TABLE 1 Test ConditionsTestConditionDesignationNamePeriod,hTemperature Relative Humidity, %CA Interior 2424724823 6 148.56 323 6 148.5 6 385
25、to 902585 to 9025B Interior 484886460 6 338.5 6 2186 238.5 6 21585 to 90about 10085 to 90C Exterior, land and air 484886471 6 3236 157 6 338.5 6 210immersed in waterabout 100about 100D Exterior, marine 484886471 6 323 6 157 6 323 6 110immersed in substitute ocean waterabout 100immersed in substitute
26、 ocean waterASTM 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 rights, and the riskof infringement of such
27、 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 revision of this standard or for additi
28、onal 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 you shouldmake your views known to the
29、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 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).D1183033
