ASTM-E295 Standard Test Method for Measured Speed of Oil Diffusion Pumps

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This test method establishes the apparatuses required, calibration and precision of the devices to be used, and the standard procedures for determining the measured speed, or volumetric flow rate, of oil diffusion pumps. This method shall make use of test dome, gage attachment or connecting line, flow-measuring devices, and leak control valve. The pump under test shall be fitted with a test dome of specified design. Gas is then admitted to the test dome in a specified manner at a measured rate, and the resulting change in equilibrium pressure is measured in the specified way.





1.1 This test method covers the determination of the measured speed (volumetric flow rate) of oil diffusion pumps.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


ICS Number Code 23.080 (Pumps)

To find similar documents by ASTM Volume:

15.03 (Space Simulation; Aerospace and Aircraft; Composite Materials)

To find similar documents by classification:

23.080 (Pumps Pumps for fluid power systems, see 23.100.10 Vacuum pumps, see 23.160)

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Document Number


Revision Level

1982 R14 EDITION



Modification Type


Publication Date

April 1, 2014

Document Type

Test Method

Page Count

6 pages

Committee Number