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1. Base oils
Base oils can be of natural origin: vegetable, mineral extracted from petroleum (the most commonly used), or synthetic (table 1 ).
1.1 Vegetable oils
The use of vegetable oils, in particular rapeseed oil, is currently enjoying renewed interest for the preparation of certain biodegradable lubricants (green lubricants) intended either for lost-oil lubrication applications (chain lubricants for wood chain saws, chain lubricants for two-wheeled vehicles, etc.), or for the lubrication of hydraulic equipment working outdoors but under little thermal stress, when there is a risk of pollution of the natural environment by leaking fluids.This is the case for agricultural and forestry hydraulic equipment and...
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Base oils
Lubricating greases
