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NCJRS Abstract

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NCJ Number: 77182 Find in a Library
Title: NIJ (National Institute of Justice) Standard for Ballistic Helmets
Corporate Author: US Dept of Justice
National Institute of Justice
Office of Development, Testing and Dissemination
United States of
Date Published: 1981
Page Count: 14
Sponsoring Agency: National Institute of Justice/
Rockville, MD 20849
US Dept of Justice
Washington, DC 20531
US Dept of Justice NIJ Pub
Washington, DC 20531
Sale Source: National Institute of Justice/
NCJRS paper reproduction
Box 6000, Dept F
Rockville, MD 20849
United States of America
Document: PDF
Language: English
Country: United States of America
Annotation: This standard establishes performance requirements and test methods for helmets that protect the wearer against gunfire. Requirements for face shields are not included in this standard.
Abstract: A revision of NILECJ-STD-0106.00, the standard redefines the classification system and establishes threat levels and test rounds that are consistent with companion NIJ standards for ballistic protective equipment and materials. Ballistic helmets covered by this standard are classified into three types by level of performance. The ballistic threat posed by a bullet depends, among other factors, on its composition, shape, caliber, mass, and impact velocity. The standard defines such technical terms as the angle of incidence, basic plane, coronal plane, fair hit, penetration, and witness plate and describes different types of bullets (full metal-jacketed bullet, jacketed soft point, and lead bullet). Requirements are delineated for test sampling, test sequence, projections, openings, workmanship, ballistic penetration, and ballistic impact attenuation. In addition, test methods are described, including the test equipment for each type of helmet, the ballistic penetration test, and the ballistic impact attenuation test. Five references, diagrams, and technical data are appended.
Index Term(s): Ballistics; Helmets; Police equipment; Specifications; Standards
Note: Part of the Technology Assessment Program
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