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Standard Practice for Corrosion of Aircraft Metals by Total Immersion in Maintenance Chemicals
STANDARD published on 1.12.2014
Designation standards: ASTM F482-09(2014)
Note: WITHDRAWN
Publication date standards: 1.12.2014
SKU: NS-55485
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
aircraft metals, corrosion rates as weight loss per surface unit divided by exposure time per day, in concentrate, in use dilution, liquid corrosiveness, metal corrodibility, tank-type chemicals, temperature control, time control, total immersion corrosion, visual corrosive deterioration,, ICS Number Code 49.025.05 (Ferrous alloys in general),49.025.15 (Non-ferrous alloys in general)
Significance and Use | ||||||||
3.1 This practice not only provides information on the accumulated effects of corrosion at specific time periods under a given set of conditions, but also provides information on the initial rate of corrosion of virgin metal, the corrosion rate of metal per unit time after long exposure, and the initial corrosion rate of virgin metal after long exposure of the corroding fluid to metal. The test also provides a means of determining the direction corrosion will take with time, although causes for increase or decrease in the corrosiveness and corrodibility of media and metal (such as passive film formation or destruction, depletion of corrosive contaminate, and so forth) as a function of time are not given. |
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1. Scope | ||||||||
1.1 This practice covers the determination of the corrosiveness of tank-type aircraft maintenance chemicals on aircraft metals and the corrodibility of metals in these maintenance chemicals with time. The determination is made under conditions of total immersion by a combination of weight change measurements and visual qualitative determinations of change. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3
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