ASTM F2220-15

Standard Specification for Headforms

ABSTRACT
This specification covers the materials, sizing, and manufacturing details of test headforms for use in the testing of protective headgear. This specification identifies the requirements for five test headform size codes: A, E, J, M, and O. All datum levels shall be quoted relative to the reference plane. The headforms shall be symmetrical about the midsagittal plane. Internal geometry may be defined to satisfy the requirements of the individual test specifications. The impact headforms shall be made of K1A-F magnesium, with the prescribed zirconium and magnesium composition, and shall conform to the specified requirements for: external dimensions, performance (resonant frequency), mass, and center of gravity. All impact headforms shall be marked with: headform size, basic plane, reference plane, and midsagittal (longitudinal) and coronal (transverse) planes through the vertical axis. Other headforms shall be made of material of sufficient strength and stiffness to maintain their geometry during testing and shall comply to the external dimension requirements.
SCOPE
1.1 This standard specifies the materials, sizing, and manufacturing details of test headforms for use in the testing of protective headgear. Details of the exterior dimension of the headforms are included.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

General Information

• Status: Historical
• Publication Date: 31-May-2015
• ICS: 13.340.20 - Head protective equipment
• Technical Committee: F08 - Sports Equipment, Playing Surfaces, and Facilities
• Drafting Committee: F08.53 - Headgear and Helmets

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F2220 − 15 An American National Standard
Standard Specification for
1
Headforms
This standard is issued under the fixed designation F2220; 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
This specification identifies the headforms used for testing protective headgear in individual ASTM
International test methods and performance standards (standard specifications). This specification was
closely based on ISO DIS 6220, which was never published as an International Standard and is no
longer available. EN 960, a published standard, is also based on ISO DIS 6220 and has been used as
a basis for this standard.
1. Scope the superior rims of the right and left external auditory
meatuses. The transverse plane corresponds to the coronal
1.1 This standard specifies the materials, sizing, and manu-
plane (see Figs. 1 and 2).
facturing details of test headforms for use in the testing of
protective headgear. Details of the exterior dimension of the
3.1.3 impact headforms, n—headforms used for impact
headforms are included.
testing of protective headgear. Impact headforms shall conform
to the external dimension defined in this specification. These
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this headforms shall meet the material, dimensions, mass, and
standard. center of gravity requirements of this specification. These
headforms shall include surface markings corresponding to the
2. Referenced Documents
basic, coronal, midsagittal, and reference planes.
2
2.1 ASTM Standards:
3.1.4 midsagittal plane, n—an anatomical plane perpendicu-
B92/B92M Specification for Unalloyed Magnesium Ingot
lar to the basic plane and containing the midpoint of the line
and Stick For Remelting
connecting the notches of the right and left inferior orbital
2.2 Other Standards:
ridges and the midpoint of the line connecting the superior rims
EN 960 Headforms for Use in the Testing of Protective
of the right and left external auditory meatuses (see Figs. 1 and
Helmets
2).
3. Terminology
3.1.5 other (reference) headforms, n—headforms used for
3.1 Definitions:
other testing, other than impact, of protective headgear. They
3.1.1 basic plane, n—an anatomical plane that includes the
shall conform to the external dimension requirements of each
superior rim of the external auditory meatuses (upper edge of
particular headform size, as specified in this specification.
the external openings of the ear) and the inferior margin of the
Reference headforms shall be made of material of sufficient
orbit (the lowest point of the floor of the eye socket) (see Figs.
strength and stiffness to maintain their geometry during testing.
1 and 2).
Full-chin headforms will be used as necessary. Reference
3.1.2 coronal plane, n—an anatomical plane perpendicular
headforms shall include surface markings corresponding to the
to both the basic and midsagittal planes and passing through
basic, coronal, midsagittal, and reference planes.
3.1.6 reference plane, n—a plane marked on the headforms
1
This specification is under the jurisdiction of ASTM Committee F08 on Sports
at a specified distance above and parallel to the basic plane (see
Equipment, Playing Surfaces, and Facilities and is the direct responsibility of
Fig. 2).
Subcommittee F08.53 on Headgear and Helmets.
Current edition approved June 1, 2015. Published August 2015. Originally
approved in 2002. Last previous edition approved in 2014 as F2220 – 14. DOI:
4. Classification
10.1520/F2220-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1 This specification identifies the requirements for six test
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
headform sizes: F2220-A, F2220-C, F2220-E, F2220-J,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. F2220-M, and F2220-O.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F2220 − 15
5.2 Dimensions—The external dimensions that the head-
forms must conform to are identified in Annex A1. The
segment lengths from the intersection of the coronal plane,
midsagittal plane and the reference plane of the test headform
to the intersection of a horizontal angle and a point at each
datum level above the reference plane are given. The exact
geometry of the external surface may be determined by a spline
function or other curve fitting algorithm in order to produce a
...

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.
Designation: F2220 − 14 F2220 − 15 An American National Standard
Standard Specification for
1
Headforms
This standard is issued under the fixed designation F2220; 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
This specification identifies the headforms used for testing protective headgear in individual ASTM
International test methods and performance standards (standard specifications). This specification was
closely based on ISO DIS 6220, which was never published as an International Standard and is no
longer available. EN 960, a published standard, is also based on ISO DIS 6220 and has been used as
a basis for this standard.
1. Scope
1.1 This standard specifies the materials, sizing, and manufacturing details of test headforms for use in the testing of protective
headgear. Details of the exterior dimension of the headforms are included.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
2. Referenced Documents
2
2.1 ASTM Standards:
B92/B92M Specification for Unalloyed Magnesium Ingot and Stick For Remelting
2.2 Other Standards:
EN 960 Headforms for Use in the Testing of Protective Helmets
3. Terminology
3.1 Definitions:
3.1.1 basic plane, n—an anatomical plane that includes the superior rim of the external auditory meatuses (upper edge of the
external openings of the ear) and the inferior margin of the orbit (the lowest point of the floor of the eye socket) (see Figs. 1 and
2).
3.1.2 coronal plane, n—an anatomical plane perpendicular to both the basic and midsagittal planes and passing through the
superior rims of the right and left external auditory meatuses. The transverse plane corresponds to the coronal plane (see Figs. 1
and 2).
3.1.3 impact headforms, n—headforms used for impact testing of protective headgear. Impact headforms shall conform to the
external dimension defined in this specification. These headforms shall meet the material, dimensions, mass, and center of gravity
requirements of this specification. These headforms shall include surface markings corresponding to the basic, coronal, midsagittal,
and reference planes.
3.1.4 midsagittal plane, n—an anatomical plane perpendicular to the basic plane and containing the midpoint of the line
connecting the notches of the right and left inferior orbital ridges and the midpoint of the line connecting the superior rims of the
right and left external auditory meatuses (see Figs. 1 and 2).
3.1.5 other (reference) headforms, n—headforms used for other testing, other than impact, of protective headgear. They shall
conform to the external dimension requirements of each particular headform size, as specified in this specification. Reference
headforms shall be made of material of sufficient strength and stiffness to maintain their geometry during testing. Full-chin
1
This specification is under the jurisdiction of ASTM Committee F08 on Sports Equipment, Playing Surfaces, and Facilities and is the direct responsibility of
Subcommittee F08.53 on Headgear and Helmets.
Current edition approved Nov. 1, 2014June 1, 2015. Published December 2014August 2015. Originally approved in 2002. Last previous edition approved in 20122014
as F2220 – 12.F2220 – 14. DOI: 10.1520/F2220-14.10.1520/F2220-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2220 − 15
FIG. 1 Anatomical Planes
FIG. 2 Impact Headform—Basic, Reference, Midsagittal Planes
headforms will be used as necessary. Reference headforms shall include surface markings corresponding to the basic, coronal,
midsagittal, and reference planes and the vision points.planes.
3.1.6 reference plane, n—a plane marked on the headforms at a specified distance above and parallel to the basic plane (see Fig.
2).
4. Classification
4.1 This specification identifies the requirements for six test headform sizes: F2220-A, F2220-C, F2220-E, F2220-J, F2220-M,
and F2220-O.
5. Dimensions
5.1 Datum Levels—All datum
...