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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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
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.
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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Industry StandardsSAE-AMS-QQ-A-250/13 Aluminum Alloy Alclad 7075, Plate and Sheet
Federal StandardsFED-STD-595 Colors Used in Government Procurement
D329 Specification for Acetone
D1193 Specification for Reagent Water
Military StandardsA-A-58054 Abrasive Mats, Non-Woven Non-Metallic MIL-DTL-81706 Chemical Conversion Materials for Coating Aluminum and Aluminum Alloys MIL-PRF-23377 Primer Coatings: Epoxy, High Solids MIL-PRF-85285 Coating: Polyurethane, Aircraft and Support Equipment
ICS Number Code 49.040 (Coatings and related processes used in aerospace industry)
UNSPSC Code 25130000(Aircraft)