Pumps using mercury, n-butyl phthalate, and Apiezon oil have been tested for effectiveness against various fore pressures. Special designs have been worked out for use with Apiezon oil.
Proceedings of the Iowa Academy of Science
©1935 Iowa Academy of Science, Inc.
Pinney, L. E.
"Operating Characteristics of Vapor-Type Vacuum Pumps,"
Proceedings of the Iowa Academy of Science, 42(1), 157-157.
Available at: https://scholarworks.uni.edu/pias/vol42/iss1/73