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Any reference to thread count (TC) refers to the commonly accepted commercial definition of the number of yarns per square inch including 2 ply yarns for obtaining total thread count. It is not a reference to the “technical” definition as promulgated by ASTM Standard D 3775 which considers 2 or more ply yarns as one thread or end. Applying D 3775 to multiple ply yarns will result in a lower technical thread count than the commercial definition.
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