The cleaning formula and basic procedures used for lacquer discs at the Archives of Traditional Music are detailed in the Sound Directions publication, page 27. Available at: http://www.dlib.indiana.edu/projects/sounddirections/papersPresent/index.shtml
I don't know that it qualifies as definitive, but it is the result of research, much experience, and consultation with Eric Jacobs.
Associate Director for Recording Services
Archives of Traditional Music
Co-Chair, ARSC Technical Committee
From: Association for Recorded Sound Discussion List [mailto:[log in to unmask]] On Behalf Of Thomas Stern
Sent: Thursday, July 10, 2008 10:55 AM
To: [log in to unmask]
Subject: [ARSCLIST] cleaning lacquers ("acetate") - palmitic acid deposit
there was some discussion of this a while back, but I can't find any
statement of a safe and effective way to clean "acetates" with white
(assumed to be palmitic acid).
Can someone provide a relatively safe, simple way to clean these discs?
Best wishes, Thomas.