Greetings All!

Recently I was asked about IPC-A-600G pages 19 & 60.

Page 19 @ 2.3.3 states under Acceptable - Class 2, 3:
The blister or delamination does not span more than
25%
of the distance between adjacent conductive patterns.

Page 60 @ 3.1.4 states under Acceptable - Class 2, 3:
No evidence of delamination or blistering.

Page 19 deals with characteristics observable from the
surface.

Page 60 deals with visual observations made on
cross-sections only.

Before I reply I thought to see if you had any input.

With Respect,

Dave 

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