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Scope

1.1 This test method covers the measurement of the pH and chloride ion of water extraction of aerospace hydraulic fluids.

1.2 This standard does not purport to address all of the safety problems, 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.

Significance and Use

On application of the hydraulic fluid within the mechanical fluidic system, the fluid may become contaminated with acid and chloride ion. Mechanical shearing of the hydraulic fluid in the presence of the minute quantity of water and residual amount of organic solvents, used in cleaning, may initiate formation of acid and chloride ion. Measurements are desired to control and maintain the cleanliness and noncorrosiveness of the fluidic system.

Keywords

chloride ion; hydraulic fluid; pH; ICS Number Code 49.080 (Aerospace fluid systems and components)

To find similar documents by ASTM Volume:

15.03 (Space Simulation; Aerospace and Aircraft; Composite Materials)

To find similar documents by classification:

49.080 (Aerospace fluid systems and components)

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