ASTM D892: Foaming Characteristics Seq. I

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ASTM D892 Foaming Characteristics of Lubricating Oils

This method measures the tendency of an oil to foam by aerating a fixed volume of oil at a fixed flow rate of air through a gas diffuser submerged in oil. The volume of foam after 5 minutes aeration and the volume of foam after 10 minutes settling are recorded. Sequence I, II and III are performed at 24°C (75°F), 93.5°C (200°F) and 24°C (75°F) respectively.

After the foam collapses from Sequence II, the same aliquot is tested in Sequence III.  This is done to address concerns associated with agitation, dispersion of anti-foaming agents, and possible presence of volatiles which can effect results. Sequence IV is a special procedure for Mercon Transmission Fluid with increased flow rate and temperature.

Note: Foam is not entrained air.  

Price: $72.00

Sample size: 200 ml

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