ASTM F1544-11(2017)

Standard Specification for Determining the Rating Velocities of a Compound Archery Bow

ABSTRACT
This specification covers the testing technique to determine the rating velocities of an archery bow. Among the test methods are: force draw data, and the shooting test. The test arrow description and the test data correction are also detailed. This specification is not intended to provide any engineering or structural evaluation of the bow that would determine its fitness for the use intended, safe function, or any other attribute except as mentioned.
SIGNIFICANCE AND USE
3.1 This specification will be used to determine a velocity under standard test conditions for rating an archery bow.
SCOPE
1.1 This specification covers the testing technique to determine the rating velocities of a compound bow.  
1.2 This specification will provide only a certification of performance, that is, the velocities at which a given bow will launch arrows of specified weights under standard conditions.  
1.3 This specification is not intended to provide any engineering or structural evaluation of the bow that would determine its fitness for the use intended, safe function, or any other attribute except as stated.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 The following safety hazards caveat pertains only to the test methods portion, Section 4, of this specification: 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.

General Information

• Status: Published
• Publication Date: 30-Nov-2017
• ICS: 97.220.40 - Outdoor and water sports equipment
• Technical Committee: F08 - Sports Equipment, Playing Surfaces, and Facilities
• Drafting Committee: F08.16 - Archery Products

Standards Content (Sample)

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.
Designation:F1544 −11 (Reapproved 2017) An American National Standard
Standard Specification for
Determining the Rating Velocities of a Compound Archery
1
Bow
This standard is issued under the fixed designation F1544; 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 2.1.2 draw length pressure point (DLPP) draw length,
n—the distance at the archer’s full draw from the string at the
1.1 This specification covers the testing technique to deter-
nocking point to a vertical line through the distal or pivot point
mine the rating velocities of a compound bow.
of the bow grip.
1.2 This specification will provide only a certification of
2.1.3 force-draw curve—the graph curve generated by re-
performance, that is, the velocities at which a given bow will
cording the draw force readings of an archery bow at 1.0-in.
launch arrows of specified weights under standard conditions.
(25.4-mm) intervals or less, from brace height through set
1.3 This specification is not intended to provide any engi-
weight and to the center of the valley (if present), in order to
neering or structural evaluation of the bow that would deter-
reveal the energy storage characteristics of the bow.
mine its fitness for the use intended, safe function, or any other
2.1.4 rating velocities, n—the initial velocity of an arrow
attribute except as stated.
weighing 5 grains per pound (0.073 g/N) of the bow’s Peak
1.4 The values stated in inch-pound units are to be regarded
Draw Force (60.5 grains (60.03 g) on total arrow weight)
1
as standard. The values given in parentheses are mathematical
(0.03 g) from a bow set at no more than 70 6 ⁄2 lb (311.4 N)
conversions to SI units that are provided for information only
Peak Draw Force and 30 in. (762 mm)ATAactual draw length.
and are not considered standard.
Example: a 70-lb Peak Draw Force bow requires the use of a
350 grain (22.7 g) arrow (60.5 grains (60.03 g) on total arrow
1.5 The following safety hazards caveat pertains only to the
weight) (0.03 g 6 0.4 N).Aminimum of (5) shots for each test
test methods portion, Section 4, of this specification: This
must be performed. Test shot velocities will then be averaged
standard does not purport to address all of the safety concerns,
to determine the ATA Compound Bow Rating Velocity.
if any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety, health, and
2.1.5 shooting machine—a device, equipped with a me-
environmental practices and determine the applicability of
chanical release, that secures a bow and releases an arrow to
regulatory limitations prior to use.
obtain highly repeatable shooting results for various testing
1.6 This international standard was developed in accor-
purposes.
dance with internationally recognized principles on standard-
2.1.6 stored energy—the energy required to draw a bow
ization established in the Decision on Principles for the
from brace height to full draw, usually expressed in foot-
Development of International Standards, Guides and Recom-
pounds (joules).
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
3. Significance and Use
3.1 This specification will be used to determine a velocity
2. Terminology
under standard test conditions for rating an archery bow.
2.1 Definitions of Terms Specific to This Standard:
4. Test Methods
2.1.1 archery trade association (ATA) draw length, n—the
distance at the archer’s full draw from the string at the nocking
4.1 Force Draw Data:
point to a vertical line through the pivot point of the bow grip 4.1.1 For bows with adjustable draw force, adjust peak or
3 1
1 ⁄4 in. (+ ⁄4 in., –0 in.) (44 + 6.4 – 0 mm).
maximum draw force to no more than 70 6 0.5 lb (311.4 6
2.22 N). The center of the valley of the force-draw curve
(lowest force) attained after having passed through the peak or
1
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maximum draw force shall be located at 28 ⁄4-in. (717.6 mm)
This specification is under the jurisdiction of ASTM Committee F08 on Sports
1
Equipment, Playing Surfaces, and Facilitiesand is the direct responsibility of
DLPP, + ⁄4 –0 in. (6 mm).
Subcommittee F08.16 on Archery Products.
4.1.2 Measure and record the draw force at 1.0-in. (25.4-
Current edition approved Dec. 1, 2017. Published December 2017. Originally
1
mm) (or less) increments from brace height to at least 28 ⁄4-in.
approved in 1994. Last previous edition approved in 2011 as F1544 – 11. DOI:
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