A Throwback Report: Perils of Ozone?

[Bill Sconce]

On Mon, 03 Oct 2005 12:50:02 -0400
LDR <l1ee057 at veritech.com> wrote:

> The Pease Porridge column of the 2005-09-29 issue of /Electronic Design/
> reports that negative ion generating (ozone) air purifiers damage
> synthetic rubber (at least) materials, to the point of accelerating
> aging 60-fold, or more.
> 
> I presume the anecdotally reported (but anecdotally confirmed) issue is
> true,


It's true.  Among other things it's a recognized factor in aviation.
Not all rubbers are equally damaged.

In addition to air purifiers another common household source of ozone
is laser printers...

-Bill


A quick Google got a whole /book/ on rubbers vs. ozone:

    Ageing of Rubber - Accelerated Weathering and Ozone Test Results
    By: Brown, R.P.; Butler, T.; Hawley, S.W. © 2001; 
    Rapra | Title Details | Ordering Info

    This book details the results of the artificial weathering and ozone
    exposure tests and makes comparisons with the results after natural
    ageing.
    
    Appendix 3: Ozone Results
    Appendix 1: Compound Details
    Compound T - Miscellaneous - Chlorosulphonated Polyethylene
    Compound A - Natural Rubber - Standard
    Compound B - Natural Rubber - Good Ageing
    Compound C - Natural Rubber - Mineral Filler Loaded
    Compound D - Natural Rubber - Mineral Filler (Heavy Loaded)
    Compound E - Styrene Butadiene Rubber - General Purpose
    Compound F - Styrene Butadiene Rubber - Good Ageing
       ...and dozens more 

    http://www.knovel.com/knovel2/Toc.jsp?BookID=755