Specify, step 1 of 8

What pressure do I actually need, and by when?

A specification names a target pressure, a species and a time. This step turns a number into a regime, a dominant gas and a horizon, which is what every later step reads.

read read from the base typed entered by hand, outside the base

What already answers this

Each line links a page of this site and says what it carries for this step.

/scale/ places a pressure on the one ruler the site uses, from atmosphere to the extreme
/tools/regime-abacus/ says what belongs at that pressure: pumps, gauges and seals
/academy/mean-free-path/ gives the monolayer time that turns a pressure into a deadline

Set the target

A target pressure with no species and no time is not a specification. Set one below and this step turns it into a regime and a monolayer deadline, both read from the same base the rest of the site reads. Commission reads this same target, it never asks for it twice.

Target pressure, Torr By, hours of pumping

Not in the base yet

What this step cannot answer, and why. Every count below is read from the corpus at each build.

unsourced No pressure specification is stored on this site. The scale, the regime abacus and the monolayer time are read one at a time, and nothing ties them into a document you can hand to a supplier.
unsourced The outgassing base carries 8 speciess. A specification written for a species the base does not carry gets no sourced rate here, and this step reports the rate as missing.

Your machines

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