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Even with careful selection of materials and extensive procedures to limit variability, the selected test materials still contain inherent MD (machine direction) variability. We use a randomization process to spread the variability evenly throughout the lot. CTS’ time tested, prime number algorithm was derived more than 30 years ago. We have automated this process using a mechanical collator to minimize sample handling.

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Collaborative Testing Services, Inc., P.O. Box 650820 Sterling, Virginia 20165-0820
Phone:1-571-434-1925         Copyright © CTS, Inc., 2007