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Advanced Oil Analysis • Varnish Analysis • Filter Debris Analysis Service

Foam Test

ASTM method - D892-IP146

Measures the foaming tendency of a lubricant.


Operating Principle. Air is forced through a diffuser within a portion of oil creating foam. After 5 minutes of blowing, the amount of foam is recorded. Then, the sample is observed for the clearing of generated foam. Then either time of full dissipation is recorded or amount of foam remaining after 10 minutes.

Significance. The tendency of lubricants to foam can cause serious issues in systems with high-speed operations. Not only can foam cause inadequate lubrication but also other problems such as overflowing reservoirs.

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Insight Services, Inc.  •  20338 Progress Drive  •  Strongsville, OH 44149  •  Phone: 216-251-2510  •  Fax: 216-251-2515
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