Digital BW, The Print

Anyone looking into conservation framing should check out this 
organization.
http://www.artfacts.org/index.html

In the standards main is the most pertinent info. In the Articles are 
lots of things being discussed.

This is standards about matboard, paper and backers etc.
http://www.artfacts.org/standards/expmmb_2000.html

I used to set up my wire way too tight and learned a lot from this piece
http://www.artfacts.org/standards/frm_399.html

This article is about the effect of wood on cellulose paper products in 
a frame package.
http://www.artfacts.org/artinfo/articals/wood_pictureframes.html

Some is a little wordy but they are science guys trying to talk down to 
us. : )

Good luck,
Jerry