ASTM D6082 High-Temperature Foaming

ASTM D6082 is the test method for high-temperature foaming characteristics of lubricating oils. It sits next to ASTM D892, which covers foam at the lower Sequence temperatures. D6082 asks how much foam forms — and how long it lasts — when the oil is hotter than a D892 bath.

Lubricant specifications for engines, hydraulics, and circulating systems often require both methods. An oil that looks quiet at 24 °C or 93.5 °C can still foam when the service temperature is higher. The method reports foam tendency and foam stability; it does not diagnose the additive package that caused the foam.

This page is original prose and is not a reproduction of the standard. Buy the official text from the ASTM store.

ASTM Standard at a Glance

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Recommended equipment for ASTM D6082:

Choosing the right equipment for ASTM D6082

High-temperature foam testing needs a stable bath, controlled air delivery, and a cylinder that can be read the same way every run. Operator timing is the usual source of scatter.

VeroFoam is built for the D892 / D6082 foam pair so a laboratory can keep both methods on one instrument family.