Re: Helium permeability in Latex

Uncle Al <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>...
> dave martin wrote:
> > 
> > jbuch <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>...
> > > dave martin wrote:
> > > > ....find some quantitative data about
> > > > the permeability of Helium through latex ,
> 
.....
> "Polymer Handbook," 3rd. ed., Brandrup, Immergut; "Permeability
> Coefficients"
> 
> Helium through natural rubber (polyisoprene), 21.6x10^(-6) cm^2/sec at
> 25 C.
> J. Polymer. Sci. 50 413 (1961)
> 
........

Thanks for the references.