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For detailed discussion on leaks, how to find them, and what to do about them see the Leak Checking pages

How much is too much? Time to talk numbers

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     We use numbers and units in discussing vacuum systems.   The way we use And the way vacuum uses some units can be very counterintuitive (*cough* log scale). This section breaks down the ideas behind the way we talk numbers around vacuum. 

Units Used with Pressure

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-Different, but in both cases the difference is 4 orders of magnitude (4 zeros). look at the difference between exponents: 7 - 3 = 4, tiny or huge, doesn't matter. 

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