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ASTM F502-08(2019)

(Test Method)

Standard Test Method for Effects of Cleaning and Chemical Maintenance Materials on Painted Aircraft Surfaces

Standard Test Method for Effects of Cleaning and Chemical Maintenance Materials on Painted Aircraft Surfaces

ABSTRACT
This test method covers determination of the effects of cleaning solutions and chemical maintenance materials on painted aircraft surfaces. Materials used for testing shall be drawing pencils, fine sand paper, abrasive mats, acetone, MIL-PRF-85285 coating, MIL-PRF-23377 primer coating, chemical conversion materials, and distilled or deionized water. Plate and sheet specimens of aluminum alloy shall be examined under concentrated and diluted test solutions. Pencils preparation, panels preparations, testing, and hardness determination shall be done according to the indicated procedure.
SCOPE
1.1 This test method covers determination of the effects of cleaning solutions and liquid cleaner concentrates on painted aircraft surfaces (Note 1). Streaking, discoloration, and blistering may be determined visually. Softening is determined with a series of specially prepared pencils wherein determination of the softest pencil to rupture the paint film is made.  
Note 1: This test method is applicable to any paint film that is exposed to cleaning materials. MIL-PRF-85285 has been selected as a basic example. When other paint finishes are used, refer to the applicable material specification for panel preparation and system curing prior to testing.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
30-Apr-2019
ICS
49.040 - Coatings and related processes used in aerospace industry
Technical Committee
F07 - Aerospace and Aircraft
Drafting Committee
F07.07 - Qualification Testing of Aircraft Cleaning Materials
Current Stage
Ref Project

Relations

Replaces
ASTM F502-08(2013) - Standard Test Method for Effects of Cleaning and Chemical Maintenance Materials on Painted Aircraft Surfaces
Effective Date
01-May-2019
Refers
ASTM D329-07e1 - Standard Specification for Acetone <a href="#fn00002"></a>
Effective Date
01-Jun-2007
Refers
ASTM D329-07 - Standard Specification for Acetone
Effective Date
01-Jun-2007
Refers
ASTM D1193-06 - Standard Specification for Reagent Water
Effective Date
01-Mar-2006
Refers
ASTM D329-02 - Standard Specification for Acetone
Effective Date
10-Dec-2002
Refers
ASTM D329-99 - Standard Specification for Acetone
Effective Date
10-Dec-1999
Refers
ASTM D1193-99e1 - Standard Specification for Reagent Water
Effective Date
10-Feb-1999
Refers
ASTM D1193-99 - Standard Specification for Reagent Water
Effective Date
10-Feb-1999
Referred By
ASTM D6361/D6361M-98(2020) - Standard Guide for Selecting Cleaning Agents and Processes
Effective Date
01-May-2019

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ASTM F502-08(2019) - Standard Test Method for Effects of Cleaning and Chemical Maintenance Materials on Painted Aircraft SurfacesASTM F502-08(2019) - Standard Test Method for Effects of Cleaning and Chemical Maintenance Materials on Painted Aircraft Surfaces
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ASTM F502-08(2019) - Standard Test Method for Effects of Cleaning and Chemical Maintenance Materials on Painted Aircraft Surfaces
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F502 − 08 (Reapproved 2019)
Standard Test Method for
Effects of Cleaning and Chemical Maintenance Materials on
Painted Aircraft Surfaces
ThisstandardisissuedunderthefixeddesignationF502;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber 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. Scope D1193 Specification for Reagent Water
1.1 This test method covers determination of the effects of 2.2 Military Standards:
cleaning solutions and liquid cleaner concentrates on painted MIL-PRF-85285 Coating: Polyurethane, Aircraft and Sup-
aircraft surfaces (Note 1). Streaking, discoloration, and blister- port Equipment
A-A-58054 Abrasive Mats, Non-Woven Non-Metallic
ing may be determined visually. Softening is determined with
a series of specially prepared pencils wherein determination of MIL-PRF-23377 Primer Coatings: Epoxy, High Solids
MIL-DTL-81706 Chemical Conversion Materials for Coat-
the softest pencil to rupture the paint film is made.
ing Aluminum and Aluminum Alloys
NOTE1—Thistestmethodisapplicabletoanypaintfilmthatisexposed
to cleaning materials. MIL-PRF-85285 has been selected as a basic 2.3 Federal Standards:
example. When other paint finishes are used, refer to the applicable
FED-STD-595 Colors Used in Government Procurement
material specification for panel preparation and system curing prior to
2.4 Industry Standards:
testing.
SAE-AMS-QQ-A-250/13 Aluminum Alloy Alclad 7075,
1.2 The values stated in inch-pound units are to be regarded
Plate and Sheet
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
3. Materials
and are not considered standard.
3.1 Drawing Pencils (Note 2)—6B, 5B, 4B, 3B, 2B, B, HB,
1.3 This standard does not purport to address all of the
F, H, 2H, 4H, 5H, and 6H.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 3.2 Fine Sand Paper, 180 to 320 grit.
priate safety, health, and environmental practices and deter-
3.3 Abrasive Mats, A-A-58054, aluminum oxide, fine or
mine the applicability of regulatory limitations prior to use.
very fine.
1.4 This international standard was developed in accor-
3.4 Acetone, in accordance with Specification D329.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3.5 MIL-PRF-85285 Coating, polyurethane, Aircraft and
Development of International Standards, Guides and Recom-
Support Equipment, FED-STD-595 Color No. 17875, insignia
mendations issued by the World Trade Organization Technical
white.
Barriers to Trade (TBT) Committee.
3.6 MIL-PRF-23377 Primer Coating, epoxy polyamide,
chemical- and solvent-resistant.
2. Referenced Documents
3.7 Chemical Conversion Materials, MIL-DTL-81706,
2.1 ASTM Standards:
Class 1A, for coating aluminum and aluminum alloys.
D329 Specification for Acetone
3.8 Distilled or Deionized Water, in accordance with Speci-
fication D1193, Type IV.
This test method is under the jurisdiction of ASTM Committee F07 on
NOTE 2—All pencils in a set must be from one manufacturer (for
Aerospace and Aircraft and is the direct responsibility of Subcommittee F07.07 on
example, Venus, Eagle, and so forth).
Qualification Testing of Aircraft Cleaning Materials.
Current edition approved May 1, 2019. Published June 2019. Originally
approvedin1977.Lastpreviouseditionapprovedin2013asF502 – 08(2013).DOI:
10.1520/F0502-08R19.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Department of Defense Single Stock Point (DODSSP) Web
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Server at http://dodssp.daps.dla.mil using ASSIST Quick Search.
Standards volume information, refer to the standard’s Document Summary page on Available from Society of Automotive Engineers (SAE), 400 Commonwealth
the ASTM website. Dr., Warrendale, PA 15096-0001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F502 − 08 (2019)
4. Safety Precautions coat of MIL-PRF-23377 epoxy primer, 0.6 to 0.8 mil (0.015 to
0.020 mm) and allow to dry1hat
...

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1.4 This practice is for use on surfaces that are not damaged by the application of adhesive tape. The use of this practice on any surface of any material not previously tested, or for which the susceptibility to damage is unknown, is not recommended. In general, metals, metal plating, and oxide coatings will not be damaged. Application to painted, vapor deposited, and optical coatings should be evaluated before implementing this test.  
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SIGNIFICANCE AND USE
4.1 This practice determines the procedure to be used to ensure the long-term storage stability of aircraft cleaning and maintenance products in order to ensure their ability to meet the shelf-life requirements called up in specifications or contract documents. The subsequent testing requirements are detailed in the specification or contract.
SCOPE
1.1 This practice covers the determination of the stability in storage of liquid enzyme-based, terpene-based, and solvent-based chemical cleaning compounds used to clean the exterior surfaces of aircraft.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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