I'm looking for a PCB material with a CTI Index of 0. The other number I
have referenced is 600 ? I believe typical FR4 has a CTI of 2-3 which
equates to a number of 100-175 (units?) I remember the test with
electrolyte dripping between two electrodes but cannot recall how the
results are reported. Can anyone help with this. Thanks in advance
Paul Greene
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