Randy asks,
I asked this question a number of years ago but I was wondering if ECT Board can be used for UN Tested cartons or is Mullen tested board still the only thing that can be used?
That’s probably a yes and no answer. ECT is allowed as long as the packaging can pass an ISTA testing protocol and the liner weights do not vary by more than 5%. A wider 10% range has been approved and included in the most recent version of the 49CFR.
Don’t forget about the maximum Cobb test.
—Ralph
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