[PSUBS-MAILIST] Windows

[hank pronk]

Jon,
Yes, that is what I call the bible.  I just read on page 940 that ABS accepts the extrapolation method to determine remaining service life. The test is very extensive and for a flat disk window  it would probably be cheaper to buy new windows.  I did not see that re- annealing helps.
Hank



On Sunday, December 15, 2013 1:54:50 PM, Jon Wallace <jonw at psubs.org> wrote:
  

What is the acrylic bible?  Are you talking about Stachiw's book?
Jon


On 12/15/2013 3:47 PM, hank pronk wrote:
 
Jon, 
>I don't know about the ABS rules, but the acrylic bible has more to say about it.  You can extend the service  life by decreasing the rating based on age and I believe location and method of storage.   
>Hank 
>
>
>
>On Sunday, December 15, 2013 1:41:55 PM, Jon Wallace mailto:jonw at psubs.org wrote:
>  
>
>As far as ABS is concerned I suspect ABS
                      guidelines are the official word on it; 10 years
                      or 10,000 cycles.  GL has similar limits and adds
                      "...regardless of the use in the submersible."
>
>Jon
>
>
>
>On 12/15/2013 2:20 PM, Hugh Fulton wrote:
>     
> 
>A question for the experts. Is it acceptable to have old windows re-polished and then possibly annealed to restore them.  I have 8 that are 25 years old and need to be replaced according to ABS etc. 
>What is the official word on this.  I note that the windows below were from an MBT rather than main windows.   Chs  Hugh 
>  
> 
>  
>   
>
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