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FAQs > Zylon®-based Body Armor

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Is used armor's ability to prevent excessive backface signature as important as its ability to prevent bullet penetration?

NIJ recognized the importance of armor's ability to prevent bullet penetration as well as reduce blunt trauma to an acceptable level. Prior research has determined the acceptable limits for blunt trauma, and the NIJ standard does not allow more than 44 mm of deformation for an armor model to be NIJ-compliant. Used body armor should provide the same level of assurance.

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