No experience on acrylics, I use enamels, but the problem is the same.
Just in case this could help, you can try these references:
http://www.cybermodeler.com/color/rlm_ww2_acr2.shtml
http://www.jpsmodell.de/main_e.htm
As you notice in the JPS paints, it is supposed that they follow Merrick and Kiroff´s books.
Regards. Saludos