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#824074 - 12th Sep 2013 11:04am Wirral Archives
derekdwc Online   content


Forum Veteran

Registered: 13th Oct 2008
Posts: 5015
Loc: Birkenhead
Went on the tour and found it was a lot bigger than I would have thought.
Near to closing time I was shown some great maps (1875) roughly 4ft x 4ft which were similar to 1st pic but of other parts of Birkenhead which I would love to have a digital copy of.
I think there were 85 rows of info + lots of map cases in the temperature controlled rooms and the cylinders for fire control which would immediately starve the fire of oxygen but have still been breathable.


Attachments: Viewing Permissions May Apply. Click Me
S1055890 [1600x1200].JPG

Description: map in the corridor to archives

archives fire  [1600x1200].JPG

archives1 [1600x1200].JPG

archives2 [1600x1200].JPG

archives3 [1600x1200].JPG

archives4 [1600x1200].JPG




Edited by derekdwc (12th Sep 2013 11:05am)

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#824105 - 12th Sep 2013 2:05pm Re: Wirral Archives [Re: derekdwc]
chriskay Offline
Forum Veteran

Registered: 25th Oct 2007
Posts: 4868
Loc: shropshire
Interesting, Derek; wish I'd gone. According to the light green colour coding on the gas cylinders, they contain an inert gas, probably neon, krypton or xenon, (but not argon which is dark green). As to whether the atmosphere flooded with one of these gases would remain breathable, I have my doubts, since the purpose is to remove oxygen.
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#824116 - 12th Sep 2013 3:20pm Re: Wirral Archives [Re: derekdwc]
RUDEBOX Offline

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Registered: 29th Aug 2008
Posts: 19149
Loc: Here.
Great pics Degs. Glad you enjoyed it.
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#824117 - 12th Sep 2013 3:21pm Re: Wirral Archives [Re: derekdwc]
bigpete Offline
Old Hand

Registered: 7th May 2009
Posts: 336
Loc: Thingwall
The old Halon gases - extinguished everything including human life.
Has been replaced throughout EU now by inert gases - mainly because some idiots in Computer Mainframe/Server rooms decided to ignore a fire alert and got 'extinguished' themselves !!!!

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#824124 - 12th Sep 2013 3:53pm Re: Wirral Archives [Re: derekdwc]
missmahjong Offline
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Registered: 3rd Jun 2012
Posts: 6512
Loc: wirral
derek glad you enjoyed it ,great photos...

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#824185 - 12th Sep 2013 6:28pm Re: Wirral Archives [Re: chriskay]
marty99fred Offline

Smartchild

Registered: 11th Mar 2009
Posts: 470
Loc: Pensby
The cylinders contain Inergen, a mixture of 52% nitrogen, 40% argon, and 8% carbon dioxide. The amount present has been carefully calculated to lower the concentration of oxygen in the storage halls to a point that cannot support combustion, but is still perfectly breathable by humans - though, quite frankly, I'd rather not be around to test that theory if they ever go off.

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#824275 - 12th Sep 2013 10:18pm Re: Wirral Archives [Re: marty99fred]
chriskay Offline
Forum Veteran

Registered: 25th Oct 2007
Posts: 4868
Loc: shropshire
Thanks for the definitive answer, marty99fred. Since, because of a lung condition, I can only just manage on the natural air content of about 21% oxygen I'm sure I'd have problems in an Inergen atmosphere.
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#824312 - 13th Sep 2013 8:09am Re: Wirral Archives [Re: derekdwc]
Tatey Offline
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Registered: 14th Apr 2009
Posts: 1413
Loc: New Brighton
I believe that the Yanks were buying up all the surplus Argon for use in their fighter planes as it does no damage to the electronics.

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