It seems like creating a vacuum should be a pretty easy job, but it turns out that sucking all the air out of something is harder than it seems. A cheap vacuum pump will get you part of the way there, ...

For a wide range of research and production applications, Dow704 Diffusion Pump Oil (Tetramethyl tetraphenyl trisiloxane) is used in large and medium diffusion pumps since a lower attainable pressure ...

Dow704 diffusion pump oil (tetramethyl tetraphenyl trisiloxane) is used in large and medium diffusion pumps for a wide range of research and production applications, as the lower attainable pressure ...

It seems like creating a vacuum should be a pretty easy job, but it turns out that sucking all the air out of something is harder than it seems. A cheap vacuum pump will get you part of the way there, ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Vapor diffusion pumps developed from ...

IN our previous communication 1 it was noted that the vapour pressure of the pump fluid affects the total vacuum only by a minor fraction, and the pump continues to exhaust air from the chamber to be ...

THERE has long been a need for a diffusion pump oil which, while hot, would withstand atmospheric pressure without bad effects. G. P. Brown (Rev, Sci. Inst., 16, 316 ; Nov. 1945) has found that ...