Standard Specification for Helmets Used in Recreational Bicycling or Roller Skating

ABSTRACT
This specification covers performance requirements for helmets manufactured for use by recreational bicyclists or roller skaters. This specification recognizes the desirability of lightweight construction and ventilation; however, it is a performance standard and is not intended to restrict design. Helmets shall be impacted with anvils centered on or above the prescribed test line. The test anvils can be oriented in any horizontal, centered position. One each hot, cold, wet, and ambient helmet shall be impacted using the flat and hemispherical anvils only. The curbstone anvil shall be used to impact one time each of the second set of four samples, one conditioned under each of the four conditioning environments. The peak acceleration of the impulse during the impact shall be measured. The ambient helmet shall be subjected to the positional stability (roll-off) test, while the hot, cold, and wet helmets shall be subjected to the dynamic strength retention test.
SCOPE
1.1 This specification covers performance requirements for helmets manufactured for use by recreational bicyclists or roller skaters. This specification recognizes the desirability of lightweight construction and ventilation; however, it is a performance standard and is not intended to restrict design.
1.2 All testing and requirements of this specification shall be in accordance with Test Methods F 1446, except where noted herein.
1.3 Partial utilization of this specification is prohibited. Any statement of compliance with this specification shall be a certification that the product meets all of the requirements of the specification in its entirety. A product that fails to meet any one of the requirements of this specification is considered to have failed the standard and should not be sold with any indication that it meets parts of the standard.

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Publication Date
30-Apr-2006
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ASTM F1447-06 - Standard Specification for Helmets Used in Recreational Bicycling or Roller Skating
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
An American National Standard
Designation: F1447 – 06
Standard Specification for
1
Helmets Used in Recreational Bicycling or Roller Skating
This standard is issued under the fixed designation F1447; 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. Scope* 3.1.3 quads, n—roller skates with four wheels on each skate
arranged in a rectangular pattern.
1.1 This specification covers performance requirements for
3.1.4 recreational roller skating, n—skating horizontally
helmets manufactured for use by recreational bicyclists or
using quads or in-lines but not roller hockey or trick roller
roller skaters. This specification recognizes the desirability of
skating such as ramp jumping, sliding sideways, or skating on
lightweight construction and ventilation; however, it is a
stairs.
performance standard and is not intended to restrict design.
1.2 All testing and requirements of this specification shall
4. Headforms
beinaccordancewithTestMethodsF1446,exceptwherenoted
4.1 Headforms to be used in this specification are as
herein.
specified in the section on Test Headforms of Test Methods
1.3 Partial utilization of this specification is prohibited.Any
F1446. The appropriate size headform shall be selected in
statement of compliance with this specification shall be a
accordance with the section on Headform Size ofTest Methods
certification that the product meets all of the requirements of
F1446 for the helmet to be tested.
the specification in its entirety.Aproduct that fails to meet any
4.2 In addition to the provisions ofTest Methods F1446, the
one of the requirements of this specification is considered to
center of gravity of the headform must be within a 10° vertical
have failed the standard and should not be sold with any
conefromthecenterofimpactandliewithinarectangulararea
indication that it meets parts of the standard.
28 by 12.8 mm oriented as shown in Fig. 1. The center of
2. Referenced Documents gravity of the drop assembly shall lie within 6.4 mm millime-
2
ters of the Z-X plane, which is defined for twin wire systems as
2.1 ASTM Standards:
the plane containing the axes of the two guide wires, and for
F1446 Test Methods for Equipment and Procedures Used in
monorail systems as the plane containing the design center of
Evaluating the Performance Characteristics of Protective
the headform and the axis of the monorail. The center of
Headgear
gravity of the drop assembly shall lie within 6.4 mm of theY-Z
F2043 Classification for Bicycle Usage
plane on the side opposite the arm of the ball arm and within
3. Terminology
21.6 mm of the Y-Z plane on the side containing the ball arm
where the Y-Z plane is perpendicular to the Z-X plane and
3.1 Definitions of Terms Specific to This Standard:
contains the design center of the headform. Please see Fig. 1.
3.1.1 recreational bicycling, n—bicycling in conditions up
The center of the anvil must be fixed in alignment with the
to Condition 4 as specified in Classification F2043.
center vertical axis of the accelerometer.
3.1.2 in-lines, n—roller skates with all wheels on each skate
arranged along a single longitudinal line.
5. Anvils and Impact Velocities
5.1 Anvils to be used for impact tests in this specification
1
This specification is under the jurisdiction ofASTM Committee F08 on Sports are the flat, hemispherical, and curbstone anvils described in
Equipment, and Facilities and is the direct responsibility of Subcommittee F08.53
the section on Apparatus of Test Methods F1446.
on Headgear and Helmets.
5.2 The helmet shall be dropped onto the flat anvil to
Current edition approved May 1, 2006. Published May 2006. Originally
achieve an impact velocity of 6.2 m/s (corresponding to a
approved in 1993. Last previous edition approved in 2002 as F1447 – 02. DOI:
10.1520/F1447-06.
theoretical drop height of 2.0 m).
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.3 The helmet shall be dropped onto the hemispherical and
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
curbstone anvils to achieve an impact velocity of 4.8 m/s
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. (corresponding to a theoretical drop height of 1.2 m).
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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F1447 – 06
NOTE 1—Overview of ball-arm as installed on impact test apparatus.
NOTE 2—Coordinate system as defined in FMVSS 218, revis
...

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