ASTM F502-08

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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Mar-2008
• 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

Relations

• Replaces: ASTM F502-02 - Standard Test Method for Effects of Cleaning and Chemical Maintenance Materials on Painted Aircraft Surfaces
• Effective Date: 01-Apr-2008
• Replaced By: ASTM F502-08(2013) - Standard Test Method for Effects of Cleaning and Chemical Maintenance Materials on Painted Aircraft Surfaces
• Effective Date: 01-Dec-2013
• Referred By: ASTM D6361/D6361M-98(2020) - Standard Guide for Selecting Cleaning Agents and Processes
• Effective Date: 01-Apr-2008

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F502 − 08
StandardTest Method for
Effects of Cleaning and Chemical Maintenance Materials on
1
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 Department of Defense.
1. Scope MIL-PRF-23377 Primer Coatings: Epoxy, High Solids
MIL-DTL-81706 Chemical Conversion Materials for Coat-
1.1 This test method covers determination of the effects of
ing Aluminum and Aluminum Alloys
cleaning solutions and liquid cleaner concentrates on painted
3
2.3 Federal Standards:
aircraft surfaces (Note 1). Streaking, discoloration, and blister-
FED-STD-595 Colors Used in Government Procurement
ing may be determined visually. Softening is determined with
4
a series of specially prepared pencils wherein determination of
2.4 Industry Standards:
the softest pencil to rupture the paint film is made.
SAE-AMS-QQ-A-250/13 Aluminum Alloy Alclad 7075,
Plate and Sheet
NOTE1—Thistestmethodisapplicabletoanypaintfilmthatisexposed
to cleaning materials. MIL-PRF-85285 has been selected as a basic
3. Materials
example. When other paint finishes are used, refer to the applicable
material specification for panel preparation and system curing prior to
3.1 Drawing Pencils (Note 2)—6B, 5B, 4B, 3B, 2B, B, HB,
testing.
F, H, 2H, 4H, 5H, and 6H.
1.2 The values stated in inch-pound units are to be regarded
3.2 Fine Sand Paper, 180 to 320 grit.
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only 3.3 Abrasive Mats, A-A-58054, aluminum oxide, fine or
and are not considered standard. very fine.
1.3 This standard does not purport to address all of the
3.4 Acetone, in accordance with Specification D329.
safety concerns, if any, associated with its use. It is the
3.5 MIL-PRF-85285 Coating, polyurethane, Aircraft and
responsibility of the user of this standard to establish appro-
Support Equipment, FED-STD-595 Color No. 17875, insignia
priate safety and health practices and determine the applica-
white.
bility of regulatory limitations prior to use.
3.6 MIL-PRF-23377 Primer Coating, epoxy polyamide,
2. Referenced Documents
chemical- and solvent-resistant.
2
2.1 ASTM Standards:
3.7 Chemical Conversion Materials, MIL-DTL-81706,
D329 Specification for Acetone
Class 1A, for coating aluminum and aluminum alloys.
D1193 Specification for Reagent Water
3.8 Distilled or Deionized Water, in accordance with Speci-
3
2.2 Military Standards:
fication D1193, Type IV.
MIL-PRF-85285 Coating: Polyurethane, Aircraft and Sup-
NOTE 2—All pencils in a set must be from one manufacturer (for
port Equipment
example, Venus, Eagle, and so forth).
A-A-58054 Abrasive Mats, Non-Woven Non-Metallic
4. Safety Precautions
1
This test method is under the jurisdiction of ASTM Committee F07 on
4.1 Allsafetyregulationsprescribedforsprayapplicationof
Aerospace and Aircraft and is the direct responsibility of Subcommittee F07.07 on
Qualification Testing of Aircraft Cleaning Materials. polyurethanepaintsshallbestrictlyadheredtointheuseofthis
Current edition approved April 1, 2008. Published April 2008. Originally
test method.
approved in 1977. Last previous edition approved in 2002 as F502 – 02. DOI:
10.1520/F0502-08. 4.2 The testing procedure shall be conducted in a well-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
ventilated area.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3 4
Available from Department of Defense Single Stock Point (DODSSP) Web Available from Society of Automotive Engineers (SAE), 400 Commonwealth
Server at http://dodssp.daps.dla.mil using ASSIST Quick Search. Dr., Warrendale, PA 15096-0001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F502 − 08
5. Test Specimens applications of 0.4 to 0.6 mil (0.010 to 0.015 mm), allowing a
1-h drying time at room temperature between each coat.Allow
5.1 SAE-AMS-QQ-A-250/13 Aluminum Alloy Alclad
the painted panels to dry four days at room temperature; then
7075-T6, Plate and Sheet.
bake for 24 h at 180°F (82°C) or allow panels to air dry an
additional three to ten days at room temperature. No greater
6. Test Solutions
than one pencil hardness difference between coated panels
6.1 Concentrated (as received, if a liquid).
prepared from the same batch of paint at the same
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:F502–02 Designation:F502–08
Standard Test Method for
Effects of Cleaning and Chemical Maintenance Materials on
1
Painted Aircraft Surfaces
This standard is issued under the fixed designation F 502; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript 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. 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.
1.2The values stated in inch-pound units are to be regarded as the standard.The values given in parentheses are for information.
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D 329 Specification for Acetone
D 1193 Specification for Reagent Water
3
2.2 Military Standards:
MIL-PRF-85285 Coating: Polyurethane, High Solids Coating: Polyurethane, Aircraft and Support Equipment
A-A-58054 Abrasive Mats, Non-Woven Non-Metallic
MIL-PRF-23377 Primer Coatings: Epoxy, High Solids
MIL-C-81706
MIL-DTL-81706 Chemical Conversion Materials for Coating Aluminum and Aluminum Alloys
3
2.3 Federal Standards:
FED-STD-595 Colors Used in Government Procurement
4
2.4 Industry Standards:
SAE-AMS-QQ-A-250/13 Aluminum Alloy Alclad 7075, Plate and Sheet
3. Materials
3.1 Drawing Pencils (Note 2) —6B, 5B, 4B, 3B, 2B, B, HB, F, H, 2H, 4H, 5H, and 6H.
3.2 Fine Sand Paper, 180 to 320 grit.
3.3 Abrasive Mats, A-A-58054, aluminum oxide, fine or very fine.
3.4 Acetone, in accordance with Specification D 329.
1
This test method is under the jurisdiction ofASTM Committee F07 onAerospace andAircraft and is the direct responsibility of Subcommittee F07.07 on Qualification
Testing of Aircraft Cleaning Materials.
e1
Current edition approved Aug. 10, 2002. Published September 2002. Originally published as F502–77. Last previous edition F502–93(1998) .
Current edition approved April 1, 2008. Published April 2008. Originally approved in 1977. Last previous edition approved in 2002 as F 502 – 02.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book ofASTM Standards
, Vol 06.04.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Annual Book of ASTM Standards, Vol 11.01.
3
Available from Department of Defense Single Stock Point (DODSSP) Web Server at http://dodssp.daps.dla.mil using ASSIST Quick Search.
4
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, Attn: NPODS.
4
Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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F502–08
3.5 MIL-PRF-85285 Coating, polyurethane, aliphatic, weather-resistant, FED-STD-595 Coating , polyurethane, Aircraft and
Support Equipment, FED-STD-595 Color No. 17875, insignia white.
3.6 MIL-PRF-23377 Primer Coating, epoxy polyamide, chemical- and solvent-resistant.
3.7 Chemical Conversion Materials , MIL-CDTL-81706, Class 1A, for coating aluminum and aluminum alloys.
3.8 Distilled or Deionized Water , in accordance with Specification D 1193, Type IV.
NOTE 2—Al
...