Intel DP55WB - Media Series P55 micro-ATX Core i7 i5 LGA1156 Desktop Motherboard Specification page 80

Intel Desktop Board DP55WB Technical Product Specification
Table 40. Lead-Free Board Markings
Description
Lead-Free 2 nd Level Interconnect:
This symbol is used to identify
electrical and electronic
assemblies and components in
which the lead (Pb) concentration
level in the desktop board
substrate and the solder
connections from the board to the
components (second-level
interconnect) is not greater than
0.1% by weight (1000 ppm).
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