1、Designation: F148 13Standard Test Method forBinder Durability of Cork Composition Gasket Materials1This standard is issued under the fixed designation F148; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision.
2、 A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers three procedures for determi-nation of the binder durability of cork-containing materials.1.2 This standard
3、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 S
4、tandards:2D471 Test Method for Rubber PropertyEffect of Liquids3. Terminology3.1 Definitions:3.1.1 disintegrationthe loss of binder cohesiveness result-ing in the specimen being reduced to separated cork granules.4. Summary of Test Method4.1 Specimens of the material are subjected to specific fluids
5、to determine the chemical durability of the binder by visualexamination for disintegration.5. Significance and Use5.1 This test method is designed to measure the chemicalcure of the binder used in the manufacture of cork composi-tions. The results of this test method can be used only as aguide for i
6、ts intended service in elevated temperature andenvironmental conditions.6. Apparatus6.1 Die, 645.2 mm2(1 in.2) in area, circular (28.6 mm (1.13in.) in diameter).6.2 Reflux Condenser and Erlenmeyer Flask, ground-glass,250-mL capacity.6.3 Metal Containers with Lids.6.4 Circulating Hot-Air Oven, mainta
7、ined at 100 6 1C(212 6 2F).6.5 Laboratory Hood with Strong Draft.7. Hazards7.1 Conduct this test method inside a laboratory hood witha strong draft.7.2 Place several glass boiling chips or stones into theErlenmeyer flask to ensure smooth boiling where needed.7.3 The tester conducting this test metho
8、d should beequipped with suitable eye protection, acid-resistant gloves,and apron or laboratory coat.7.4 The Erlenmeyer flask should be thoroughly cooledbefore handling so as to prevent the possibility of a burn.8. Test Specimens8.1 Test specimens shall be circular disks approximately 28mm (1.1 in.)
9、 in diameter.8.2 Test specimen thickness shall be as agreed upon be-tween the producer and the user. A nominal thickness of 3.175mm (0.125 in.) is commonly used.9. Conditioning9.1 Condition specimens for at least 46 h prior to testing ina cabinet or room with air circulation at 21 to 30C (70 to85F)
10、and 50 to 55 % relative humidity.10. Procedures10.1 Procedure A, Water-Flotation TestPlace 75 mL ofdistilled water in the Erlenmeyer flask and bring the fluid to arolling boil. Then insert three test specimens in the flask atopthe fluid and test for a period of 3 h. At the conclusion of thetest, exa
11、mine the specimens for any signs of disintegration.10.2 Procedure B, Acid-Flotation TestUsing an Erlen-meyer flask with a reflux condenser on top, place 75 mL ofhydrochloric acid solution (35 % by weight concentration) inthe Erlenmeyer flask and bring the solution to a rolling boil.Then insert three
12、 test specimens in the flask atop the solution1This test method is under the jurisdiction of ASTM Committee F03 on Gasketsand is the direct responsibility of Subcommittee F03.40 on Chemical Test Methods.Current edition approved July 1, 2013. Published August 2013. Originallyapproved in 1972. Last pr
13、evious edition approved in 2013 as F148 02 (2013).DOI: 10.1520/F0148-13.2For 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 AS
14、TM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1and test for a period of 0.5 h. At the conclusion of the test,examine the specimens for any signs of disintegration.10.3 Procedure C, Oil-Flotation TestPlace approximately75 m
15、L of ASTM No. 1 Oil3(IRM 901)4in a metal containerand heat to 100C (212F) in a hot-air oven. After the oil hasreached 100C, place three test specimens atop the oil andmaintain the test temperature for a period of 2 h. At theconclusion of the test, examine the specimens for any signs ofdisintegration
16、.11. Report11.1 Report the results as disintegration or no disintegrationafter flotation in the respective fluids.11.2 Report the following information:11.2.1 Complete sample description, including commercialdesignation, source, and manufacturer, and11.2.2 Date of production, if known.12. Precision
17、and Bias12.1 No work has been done to test the precision and bias ofthis test method. The results obtained from this test method arebased on a visual examination, and quantitative values associ-ated with precision data are not obtainable with this testmethod.13. Keywords13.1 binder; cork composition
18、; disintegration; durability;gasketsASTM 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 ris
19、kof 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 revision of thi
20、s 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 you shouldmake
21、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 be obtained by
22、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 ASTM website (www.astm.org/COPYRIGHT/).3ASTM Oil No. 1 was available fr
23、om Penreco, 4426 E. Washington Blvd., LosAngeles, CA 90028; refer to Test Method D471 for further information regardingimmersion test fluids.4ASTM Oil No. 1 was used for original interlaboratory testing and has sincebeen replaced with IRM 901 as approved by ASTM Committee D04. Users maycontinue to u
24、se ASTM Oil No. 1 but should be aware that IRM 901 is thecommercially available replacement going forward.The sole source of supply of IRM 901 known to the committee at this time isR.E. Carrol, Inc., P.O. Box 5806, Trenton, NJ 08638. If you are aware of alternativesuppliers, please provide this information to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of the responsibletechnical committee,1which you may attend.F148 132
