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The tendency to de-emulsify quantitatively is determined by ______test.

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in Automotive Engine Design by (137k points)
The tendency to de-emulsify quantitatively is determined by ______test.

(a) hydrometer

(b) A.S.T.M emulsion

(c) centistokes

(d) centipoises

This question was posed to me in class test.

This question is from Testing of Lubricants in chapter Lubrication and Lubricants of Automotive Engine Design

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The correct option is (b) A.S.T.M emulsion

Best explanation: The tendency to de-emulsify is quantitatively determined by the A.S.T.M emulsion test. In this, 20ml of oil is taken in the test tube and steam at 100 degrees centigrade is bubbled through it, till the temperature is raised to 90 degrees centigrade.

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