NIJ (National Institute of Justice). 2000. Ballistic resistance of personal body armor. NIJ Standard 0101.04. Available online at Last accessed March 10, 2011.

NIJ. 2001. Selection and application guide to personal body armor. NIJ Guide 100-01. Available online at Last accessed March 10, 2011.

NRC (National Research Council). 2010. Phase II Report on Review of the Testing of Body Armor Materials for Use by the U.S. Army. Washington, D.C.: National Academies Press.

Prather, R., C. Swann, and C. Hawkins. 1977. Backface signatures of soft body armors and the associated trauma effects. ARCSL-TR-77055. Aberdeen Proving Ground, Md.: Edgewood Arsenal.

TABLE 3-1 Strengths and Weaknesses of the Prather Methodology



Ease of use Clay constituents have changed considerably since original study
Immediate results

Relatively low cost
Clay variability (handling, thixotropy, temperature effects, etc)
Large historical database of results Current methodology requires elevated clay temperatures
Apparent success in field for soft body armor All variability in testing results is assumed to be design flaws in the armor
Apparent success in field for hard body armor  
  Method has limited medical validation for soft body armor

Method has no medical validation for hard body armor

Pass/fail criterion

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