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IP 453: Determination of the high temperature foaming characteristics of lubricating oils
- Method adopted/last revised:
- Method reapproved: 2021
- REF/ISBN:
- Status: Current
- First printed in STM books: 2009
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This standard1) specifies a method for the determination of the foaming characteristics of automotive lubricants and transmission fluids at 150°C. The standard is used to assess the tendency of oils to foam at high temperature in applications such as high-speed gearing, high volume pumping and splash lubrication, where inadequate lubrication, cavitation, and loss of lubricant due to overflow, may lead to mechanical failure.
NOTE - Foaming characteristics of lubricating oils at temperatures up to 93,5°C are determined by IP 146.
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