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38:54 1997 |
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Try NEMA LI-1, Industrial Laminated Thermosetting Products.
Also, UL-746E, Standard Polymeric Materials
>I am looking for the specifications for FR-4. My current understanding
>that FR-4 is the material specified by MIL-S-13949/4 and is also the
>material specified by IPC-L-108/04, but I cannot find the original NEMA
>specification. Can someone tell me what NEMA specification specifies FR-4.
>
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