Nancy,

The documents pertaining to your request are as follows:

         CEM-1     IPC-L-112B
         CEM-3     IPC-L-112B
         FR-4 HI TG   IPC-L-108B and IPC-L-115B

All these specifiations are currently being incorporated into a single
document which is IPC-4041.

Doug Sober
isola USA
IPC Base Materials Chairman