Also, I found a "how-to" in a library disaster plan:
Record Albums (Vinyl, Shellac, and Acetate Disks)
Priority
Dry within 48 hours. Freezing is untested; if there are not options, freeze at above 0 degrees F.
Handling Precautions
Hold disks by their edges. Avoid shocks.
Packing Methods
Pack vertically in padded plastic crates.
Preparation for Drying
Remove the disks from their sleeves and jackets. If labels have separated, mark label information on the center of the disk with a grease pencil and keep track of the label.
Separate shellac, acetate, and vinyl disks. If dirt has been deposited on the disks, they may be washed in a 1 percent solution of Kodak Photo Flo in distilled water. Each disk media should be washed in it own container (i.e., do not wash shellac disks with vinyl disks). Rinse each disk thoroughly with distilled water.
Drying Methods
Jackets, sleeves, and labels may be air dried like other paper materials. See Sections: Paper: Coated and Paper: Uncoated, as appropriate.
Air dry disks vertically in a rack that allows for the free circulation of air. Dry slowly at ambient temperature away from direct heat and sources of dust.
Here's the site for more information:
http://calpreservation.org/disasters...plate_2003.rtf