1、Designation: F 485 08Standard Practice forEffects of Cleaners on Unpainted Aircraft Surfaces1This standard is issued under the fixed designation F 485; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A nu
2、mber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice describes the procedure used to determinethe effect of cleaners on unpainted aircraft surfaces. Visualobservation is used f
3、or determining streaking or permanentstains which require polishing to remove.1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation.1.3 This standard does not purport to address all of thesafety concerns, if any, associated wi
4、th 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:D 1193 Specification for Reagent Water2.2 Industry Standards:2SAE-A
5、MS-QQ-A-250/13 Aluminum Alloy Alclad 7075,Plate and SheetSAE-AMS-T-9046 Titanium and Titanium Alloy, Sheet,Strip, and Plate (Composition AB-1)3. Significance and Use3.1 This practice is used to ensure that candidate aircraftsurface cleaners do not leave a residue which, on drying, wouldleave a perma
6、nent stain requiring polishing to remove.4. Reagents and Materials4.1 Reagents:4.1.1 Reagent water in accordance with SpecificationD 1193, Type IV.4.1.2 Methyl n-propyl ketone (MPK).4.2 Materials:4.2.1 Aluminum 7075-T6 Alclad in accordance with indus-try standard SAE-AMS-QQ-A-250/13.4.2.2 Titanium A
7、lloy 6A14V in accordance with industrystandard SAE-AMS-T-9046, Composition AB-1.5. Preparation of Test Specimens5.1 Prepare two panels, each 2 by 6 by 0.020 in. (50 by 152by 0.51 mm), from alclad aluminum and titanium alloy andclean them with methyl n-propyl ketone.6. Preparation of Test Solution6.1
8、 Make the solutions of the cleaner to be tested in reagentwater (see 4.1.1) in accordance with the dilutions recom-mended by the manufacturer.7. Procedure7.1 Immerse the cleaned test specimens for 3 to 5 min in asufficient quantity of the cleaning solution to cover approxi-mately one half of the pan
9、el. After removing from the testsolution, immediately place the panels at 45 from the hori-zontal in a mechanical convection oven maintained at 150 65F (65.5 6 2C) for 30 min. At the end of the 30-min period,remove the panels from the oven, cool to room temperature,rinse on each side within 15 min u
10、nder running tap water for 1min without using mechanical agitation, then rinse on each sidewith distilled or deionized water from a squeeze bottle for 15s and allow to air dry for 30 min. Visually examine andcompare the treated and untreated areas of the panels for thepresence of residue or stains.8
11、. Report8.1 Report the following:8.1.1 The appearance of the panel after completion of thetest, and8.1.2 The concentration at which the test was performed andthe diluent with which the cleaner was mixed, if other thandistilled or deionized water (see 4.1.1).9. Keywords9.1 aircraft surface cleaners;
12、permanent stain; unpaintedaircraft surfaces1This practice is under the jurisdiction of ASTM Committee F07 on Aerospaceand Aircraft and is the direct responsibility of Subcommittee F07.07 on Qualifica-tion Testing of Aircraft Cleaning Materials.Current edition approved Dec. 1, 2008. Published January
13、 2009. Originallyapproved in 1976. Last previous edition approved in 2002 as F 485 02.2Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United Stat
14、es.ASTM 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 rights,
15、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 additional stan
16、dardsand 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 ASTM Comm
17、ittee 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).F485082
