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RE: [PSUBS-MAILIST] Acrylic end of life

I can look it up for you in the evening. Bear in mind its not that ANY window of a given geometry will last that many years. The assumption is that it is PVHO compliant in all aspects such as thickness to diameter ratio, material, annealing, etc., etc. If you're designing a window, PVHO is a must read or you can get into trouble real fast.

Alec

-----Original Message-----
From: Michael B Holt [mailto:tlohm@juno.com]
Sent: Friday, November 22, 2002 8:54 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Acrylic end of life


On Thu, 21 Nov 2002 23:29:14 -0500 "Alec Smyth" <Asmyth@changepoint.com>
writes:
>
>Its in PVHO and depends on the geometry of the window. For example, 
>for a dome with a square edge its 10 years, but for a dome with a
conical 
>edge its 20. Let me know what geometry you're interested in and I can 
>look it up.

What about a simple circular port?   Something about 6 inches in
diameter.
Given those numbers above, they must last about ... forever.



Mike H.


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