Hi Ed,
There is quite a bit of information out there. Here in Canada the Canadian Council of Archives created a short bulletin on archival enclosures for paper records which can be downloaded at http://www.cdncouncilarchives.ca/Paper_Records.pdf . It includes number references for various national/international standards Since it’s about 10 years old, I would check for updates to the standards quoted.
The technical section of the Conservation Resources International website (http://www.conservationresources.com/Main/S%20CATALOG/TechnicalInfo.htm) has a wealth of information on specifications and background info on why they’re important.
Hope this helps,
Jane
