Hi Tim,
Metallised PET (polyester) used to package half the wine consumed in
Australia seems to be the best 'plastic' to minimise gas transfer. This
table compares PET to metallised PET
https://en.wikipedia.org/wiki/Metallised_film#Properties
The bag-in-box packaging was invented by an Australian. Outer layer is
metallised PET, inner layer normally LDPE or EVA. The shelf life of wine
in these bladders is a minimum of 9 months
<http://www.b-i-b.com/bib/web/downloads/7O2SheaVidalVialisPerfBIB29nov2010EN2.pdf>
Regards
Peter
On 3 December 2016 at 07:02, Tim Daneliuk <tundra@xxxxxxxxxxxxxx> wrote:
Call all Chemists (Howard that means you, et al)
It is well recorded that darkroom chemistry is best stored in dark glass
bottles
As I understand it, the plastic used in things like cubtainers allows
oxygen
passage and thus oxidation.
So are NO plastics OK for storage of, say, developers? HD Poly? LD Poly?
Anything at all?
For the record, I keep developers in glass, but fixers get stored in the
gallon jug the original distilled water got shipped in.
Just curious because I saw a lovely catalog of industrial plastic
containers.
--
------------------------------------------------------------
----------------
Tim Daneliuk tundra@xxxxxxxxxxxxxx
PGP Key: http://www.tundraware.com/PGP/
============================================================
=================================================
To unsubscribe from this list, go to www.freelists.org and logon to your
account (the same e-mail address and password you set-up when you
subscribed,) and unsubscribe from there.
