On 4 Jan 99,, the dancing digits of Wade Lawrence delivered:
> What is the current thinking in the conservation community about the use
> of PVC piping for storing rolled architectural drawings?
The last I heard vinyl (PVC) in any form should be avoided.
> Does PVC offgass anything that
> will harm any of these media?
Vinyl off gasses chlorine. If I remember right from my chemistry
classes, chlorine will combine with the oxygen in whatever it
contacts. It will usually pull the oxygen out of any other
molecules.
Wayne Haegele