ASTM WK42400

    New Specification for Clay Backing Material Used in Ballistic-resistance Testing

    (What is a Work Item?)

    Developed by Subcommittee: E54.04 | Committee E54 | Contact Staff Manager


    1. Scope

    The scope of this document is to develop a standard specification for clay backing material used in ballistic-resistant armor testing with the goals of achieving consistent clay performance and reduction in measurement uncertainty. The specification will build upon NIJ Standard-0101.06 requirements. To produce a comprehensive specification that addresses user needs, contributors to the effort will be technical experts and interested stakeholders from federal agencies, law enforcement agencies, testing and certification bodies, and manufacturers.

    Federal standards for ballistic-resistant body armor require perforation resistance testing to be performed on armor samples backed by a homogeneous block of clay. The current National Institute of Justice standard, NIJ Standard-0101.06, requires the use of Roma Plastilina No.1 modeling clay as the backing material and specifies conditioning and handling requirements for the clay. How the clay is handled prior to and during testing has been demonstrated to have a significant effect on deformation of the clay when the armor sample is struck by a nonperforating round.


    clay, ballistic, materials

    The title and scope are in draft form and are under development within this ASTM Committee.

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Casandra Robinson


    E54 (15-04)

    Ballot Item Approved


    COS (15-10)

    Ballot Item Approved as E3004-2015 and Pending Publication