BUILD 05 · CLEAN AND BAKE

How clean is clean enough, and how do I prove it?

Cleanliness has no unit until a specification gives it one. This step reads the cleanliness class, the particle count and the bake that the target pressure demands.

What already answers this

Nothing below is a copy. Each line is the surface of this site that carries the answer, and what it carries.

/essays/clean-has-no-unit/ reads thirty specifications and shows they do not share a unit
/academy/why-we-bake/ gives the mechanism a bake works on, and the temperature it needs
/tools/outgassing/ serves the rate a bake actually buys, with the bake it was measured after

Not in the base yet

What this step cannot answer, and why. Every count below is read from the corpus at build, so this block shrinks on its own the day the data grows.

unsourced No cleanliness class is stored per material or per machine. The essay reads thirty specifications and shows they do not share a unit, which is why nothing here converts one class into another.
unsourced No particle count data is carried. A cleanliness class can be recorded in a Bill of Vacuum as a stated requirement, and it will be marked unsourced until a document backs it.