ASTM E3004-15
(Specification)Standard Specification for Preparation and Verification of Clay Blocks Used in Ballistic-Resistance Testing of Torso Body Armor
Standard Specification for Preparation and Verification of Clay Blocks Used in Ballistic-Resistance Testing of Torso Body Armor
SCOPE
1.1 The purpose of this specification is to provide a standardized method for preparation and verification of backing assemblies used in ballistic-resistant torso body armor testing and to reduce variability within and between laboratories.
1.2 The backing assembly is a clay block that contains ROMA Plastilina No. 1®2 clay as the backing material. The clay serves as a witness material and provides a measurable indication of test item performance.
1.3 This specification is primarily directed toward test laboratories but may be applicable to body armor manufacturers, researchers, and end users performing ballistic-resistance testing of body armor.
1.4 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to non-SI units that are provided for information only.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
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Designation:E3004 −15
StandardSpecification for
Preparation and Verification of Clay Blocks Used in
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Ballistic-Resistance Testing of Torso Body Armor
This standard is issued under the fixed designation E3004; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
At the time when work on this specification was undertaken, different ballistic-resistant body armor
test protocols required different impactors for verification of the clay blocks placed behind the test
items, and the lack of detailed guidance about the clay blocks resulted in different practices for
preparation and verification. To improve laboratory-to-laboratory consistency, major stakeholders
sought to harmonize practices related to the preparation and verification of the clay blocks used for
testing of ballistic-resistant body armor.
1. Scope 2. Referenced Documents
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1.1 The purpose of this specification is to provide a stan- 2.1 ASTM Standards:
dardized method for preparation and verification of backing E3005 Terminology for Body Armor
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assemblies used in ballistic-resistant torso body armor testing
2.2 NIST Standard:
and to reduce variability within and between laboratories.
NIST Special Publication 330 The International System of
Units (SI), 2008 Edition, Barry N. Taylor and Ambler
1.2 The backing assembly is a clay block that contains
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Thompson, Editors
ROMA Plastilina No. 1® clay as the backing material. The
clay serves as a witness material and provides a measurable
3. Terminology
indication of test item performance.
3.1 The terms and definitions of Terminology E3005 apply
1.3 This specification is primarily directed toward test
for the following terms: backing assembly, backing fixture,
laboratories but may be applicable to body armor
backing material and test item.
manufacturers, researchers, and end users performing ballistic-
resistance testing of body armor.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 backing assembly, n—a backing fixture filled with
1.4 Units—The values stated in SI units are to be regarded
backing material. For example, a clay block is a type of a
as standard. The values given in parentheses are mathematical
backing assembly.
conversions to non-SI units that are provided for information
only.
3.2.2 backing fixture, n—any apparatus designed to hold or
contain the backing material(s) for a specific test.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.2.3 backing material, n—the substance placed behind the
responsibility of the user of this standard to establish appro-
test item during testing which is intended to be a witness
priate safety and health practices and determine the applica-
materialandwhichmayprovideameasurableindicationoftest
bility of regulatory limitations prior to use.
item performance.
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This specification is under the jurisdiction of ASTM Committee E54 on
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Homeland Security Applications and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
E54.04 on Personal Protective Equipment (PPE). contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Nov. 1, 2015. Published November 2015. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/E3004–15. the ASTM website.
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U.S. Government standards require ROMA Plastilina No. 1®, from Sculpture Available from National Institute of Standards and Technology (NIST), 100
House, Inc., as the backing material for ballistic-resistance testing. Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E3004−15
3.2.4 bridge gauge, n—an assembly used for measuring that nize practices related to the preparation and verification of the
consists of a depth gauge and supports that rest on opposite clay blocks used for testing of ballistic-resistant body armor.
sides of the backing fixture.
5. Equipment
3.2.5 clay block, n—a type of backing assembly in which
5.1 The equipment used for preparation and verification of
the backing material is ROMA Plastilina No. 1® modeling
clay blocks shall be as described below:
clay. See Fig. 1.
5.1.1 Backing Fixture—The backing fixture shall be a rigid,
3.2.6 clay package, n—the smallest unit of wrapped and
metal frame with a plywood bottom. The inside dimensions of
labeled clay as received from the supplier.
the metal f
...
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