ASTM E3004-20
(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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Designation:E3004 −20
Standard Specification for
Preparation and Verification of Clay Blocks Used in
1
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 ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 The purpose of this specification is to provide a stan-
mendations issued by the World Trade Organization Technical
dardized method for preparation and verification of backing
Barriers to Trade (TBT) Committee.
assemblies used in ballistic-resistant torso body armor testing
and to reduce variability within and between laboratories.
2. Referenced Documents
1.2 The backing assembly is a clay block that contains
3
2.1 ASTM Standards:
2
ROMA Plastilina No. 1® clay as the backing material. The
E3005 Terminology for Body Armor
clay serves as a witness material and provides a measurable
4
2.2 NIST Standard:
indication of test item performance.
NIST Special Publication 330 The International System of
1.3 This specification is primarily directed toward test
Units (SI), 2008 Edition, Barry N. Taylor and Ambler
laboratories but may be applicable to body armor
Thompson, Editors
manufacturers, researchers, and end users performing ballistic-
resistance testing of body armor. 3. Terminology
3.1 The terms and definitions of Terminology E3005 apply
1.4 Units—The values stated in SI units are to be regarded
as standard. The values given in parentheses are mathematical for the following terms: backing assembly, backing fixture,
backing material, bridge gauge, clay block, clay package,
conversions to non-SI units that are provided for information
only. clay-verification impactor, depth gauge, striking device, and
test item.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 U.S. Department of Defense and U.S. Department of
priate safety, health, and environmental practices and deter-
Justice standards for assessing the performance of ballistic-
mine the applicability of regulatory limitations prior to use.
resistant torso body armor require the use of backing assem-
1.6 This international standard was developed in accor-
blies made with Roma Plastilina No. 1®. It can be demon-
dance with internationally recognized principles on standard-
strated that the way the clay block is handled prior to and
during ballistic testing can have a significant influence on
1
This specification is under the jurisdiction of ASTM Committee E54 on
Homeland Security Applications and is the direct responsibility of Subcommittee
3
E54.04 on Personal Protective Equipment (PPE). For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2020. Published April 2020. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ɛ1
approved in 2015. Last previous edition approved in 2015 as E3004 – 15 . DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/E3004-20. the ASTM website.
2 4
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
1
---------------------- Page: 1 ----------------------
E3004−20
deformation of the clay when a test item is struck by a maximum diameter of 6.35 mm (0.25 in.) such that only the tip
projectile during testing. touches the deepest location of the indentation. The bridge
gauge (independent of the backing fixture) shall have a
4.2 At the time when work on this specification was
resolution o
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: E3004 − 15 E3004 − 20
Standard Specification for
Preparation and Verification of Clay Blocks Used in
1
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.
1
ε NOTE—Editorial corrections made throughout in August 2016.
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
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.
2
1.2 The backing assembly is a clay block that contains ROMA Plastilina No. 1® 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
3
2.1 ASTM Standards:
E3005 Terminology for Body Armor
4
2.2 NIST Standard:
NIST Special Publication 330 The International System of Units (SI), 2008 Edition, Barry N. Taylor and Ambler Thompson,
Editors
1
This specification is under the jurisdiction of ASTM Committee E54 on Homeland Security Applications and is the direct responsibility of Subcommittee E54.04 on
Personal Protective Equipment (PPE).
Current edition approved Nov. 1, 2015April 1, 2020. Published November 2015April 2020. Originally approved in 2015. Last previous edition approved in 2015 as
ɛ1
E3004 – 15 . DOI: 10.1520/E3004–15E01.10.1520/E3004-20.
2
U.S. Government standards require ROMA Plastilina No. 1®, from Sculpture House, Inc., as the backing material for ballistic-resistance testing.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Available from National Institute of Standards and Technology (NIST), 100 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
1
---------------------- Page: 1 ----------------------
E3004 − 20
3. Terminology
3.1 The terms and definitions of Terminology E3005 apply for the following terms: backing assembly, backing fixture, backing
materialmaterial, bridge gauge, clay block, clay package, clay-verification impactor, depth gauge, striking device, and test item.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 backing assembly, n—a backing fixture filled with backing material. For example, a clay block is a type of a backing
assembly.
3.2.2 backing fixture, n—any apparatus designed to hold or contain the backing material(s) for a specific t
...
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