Tom:

CEM-1 laminates have been recognized by UL.  Three manufacturers (there are certainly more, but these come to mind) manufacture UL recognized
grades: GE, Allied Signal, and NanYa.  The UL recognition file numbers are assigned to the manufacturers and are not generic to the laminate
type.

Don Vischulis
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Tom Burek wrote:

> Hello,
> Please respond to the following and, if possible,  provide your source of information (i.e. UL document number, etc.)
> What are the current standards in regards to the use of CEM-1 as board material?  Specifically is CEM-1 a UL approved material?  Thank You .
>    Tom Burek
>

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