Standard Test Method for Sandwich Corrosion Test
Standardtestverfahren für Sandwich-Korrosionstest
NORM herausgegeben am 1.12.2014
Bezeichnung normen: ASTM F1110-09(2014)
Ausgabedatum normen: 1.12.2014
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
aircraft maintenance chemicals, aluminum structural aircraft alloys, faying surfaces, sandwich corrosion,, ICS Number Code 49.025.99 (Other materials)
|Significance and Use|
5.1 The data generated by this test method shall be used to determine whether aircraft structural aluminum alloys are liable to be corroded or damaged by application of the test material during routine maintenance operations.
5.2 Interpretation of the sandwich corrosion test results is based on a comparison of the appearance of faying surfaces of three sets of coupons. One set of test coupons is exposed with reagent water only in the faying surfaces, to establish the baseline (controls) against which the panels exposed to the test material are compared. Disregard corrosion at cut edges of the test coupons.
5.3 The relative corrosion severity rating system is provided in order to allow a numerical classification of the test results and to eliminate the necessity for elaborate weight loss measurements. Pitting corrosion, which is rated 4—extensive (severe) corrosion, may involve only a negligible weight loss.
5.4 Relative corrosion severity rating system:
1.1 This test method defines the procedure for evaluating the corrosivity of aircraft maintenance chemicals, when present between faying surfaces (sandwich) of aluminum alloys commonly used for aircraft structures. This test method is intended to be used in the qualification and approval of compounds employed in aircraft maintenance operations.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information.
1.3 This standard may involve
hazardous materials, operations, and equipment. 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
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