List: time-nuts@lists.febo.com
From: Bob kb8tq
Re: [time-nuts] backfill
Sat, Jun 10, 2017 1:20 PM
> wrote:
>>>
>>> My memory of high vacuum work is that you need to pump for 4 hours
>>> at 300C to remove the water monolayer from glass.
>>> On top of the that water monolayer is another water monolayer that comes off more easily,
>>> and on top of that another………..
>>>
>>> cheers,
>>> Neville Michie
>>>
>>>
>>>> On 9 Jun 2017, at 10:57 AM, Richard (Rick