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Operating errors with diffusion and vapor-jet pumps

2 Operating errors with diffusion and vapor-jet pumps [Pg.144]

Potential sources of defects when the desired ultimate pressure is not reached [Pg.144]

Remedy if the pump has been contaminated by vapors it may help to use a metering valve fo pass air through the apparatus for some period of time here the pressure should not exceed 10 mbar w/hen DIFFELEN is being used. [Pg.144]

Potential sources of error where there is insufficient pumping speed [Pg.144]

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Diffusion and vaporization

Diffusion operator

Diffusion pumps

Errors and

Errors with

Jetting operation

Operation errors

Operator error

Pump operation

Pumping diffusion

Pumps and Pumping

Pumps operating

Vapor diffusion

Vapor diffusivity

Vapor pump

Vapor-jet pumps

Vaporizers operation