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Refining Used Lubricating Oils
book

Refining Used Lubricating Oils

by James Speight, Douglas I. Exall
April 2014
Intermediate to advanced content levelIntermediate to advanced
466 pages
17h 36m
English
CRC Press
Content preview from Refining Used Lubricating Oils
16 Refining Used Lubricating Oils
the viscosity of petroleum lubricants between 70°F and 210°F (21°C and 99°C).
Viscosity is measured in the Saybolt universal second (SUS), which is the time
in seconds required for 50 mL of oil to empty out of a Saybolt viscometer cup
through a calibrated tube orice at a given temperature (ASTM D2161, ASTM
2012).
The specic gravity of oil depends on the rening method and the types of addi-
tives present, such as lead, which give the lubricating oil the ability to resist extreme
mating surface pressure and cold temperatures. The color of the lubricating oil indi-
cates the uniformity of a particular grade or brand. The oil’s ash and re points
vary with the crude oil’s origin. The ash point is the temperatu ...
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Publisher Resources

ISBN: 9781466551497