ASTM F1544-11

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
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Oct-2011
• ICS: 97.220.40 - Outdoor and water sports equipment
• Technical Committee: F08 - Sports Equipment, Playing Surfaces, and Facilities
• Drafting Committee: F08.16 - Archery Products

Relations

• Replaces: ASTM F1544-09 - Standard Specification for Determining the Rating Velocities of an Archery Bow
• Effective Date: 01-Nov-2011
• Replaced By: ASTM F1544-11(2017) - Standard Specification for Determining the Rating Velocities of a Compound Archery Bow
• Effective Date: 01-Dec-2017

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F1544 −11 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 (25.4-mm) intervals or less, from brace height through set
weight and to the center of the valley (if present), in order to
1.1 This specification covers the testing technique to deter-
reveal the energy storage characteristics of the bow.
mine the rating velocities of a compound bow.
2.1.4 rating velocities, n—the initial velocity of an arrow
1.2 This specification will provide only a certification of
weighing 5 grains per pound (0.073 g/N) of the bow’s Peak
performance, that is, the velocities at which a given bow will
Draw Force (60.5 grains (60.03 g) on total arrow weight)
launch arrows of specified weights under standard conditions.
1
(0.03 g) from a bow set at no more than 70 6 ⁄2 lb (311.4 N)
1.3 This specification is not intended to provide any engi-
Peak Draw Force and 30 in. (762 mm)ATAactual draw length.
neering or structural evaluation of the bow that would deter-
Example: a 70-lb Peak Draw Force bow requires the use of a
mine its fitness for the use intended, safe function, or any other
350 grain (22.7 g) arrow (60.5 grains (60.03 g) on total arrow
attribute except as stated.
weight) (0.03 g 6 0.4 N).Aminimum of (5) shots for each test
must be performed. Test shot velocities will then be averaged
1.4 The values stated in inch-pound units are to be regarded
to determine the ATA Compound Bow Rating Velocity.
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
2.1.5 shooting machine—a device, equipped with a me-
and are not considered standard.
chanical release, that secures a bow and releases an arrow to
obtain highly repeatable shooting results for various testing
1.5 The following safety hazards caveat pertains only to the
purposes.
test methods portion, Section 4, of this specification: This
standard does not purport to address all of the safety concerns,
2.1.6 stored energy—the energy required to draw a bow
if any, associated with its use. It is the responsibility of the user
from brace height to full draw, usually expressed in foot-
of this standard to establish appropriate safety and health
pounds (joules).
practices and determine the applicability of regulatory limita-
tions prior to use.
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:
2.1.1 archery trade association (ATA) draw length, n—the
4. Test Methods
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
3 1 4.1.1 For bows with adjustable draw force, adjust peak or
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
2.1.2 draw length pressure point (DLPP) draw length,
2.22 N). The center of the valley of the force-draw curve
n—the distance at the archer’s full draw from the string at the
(lowest force) attained after having passed through the peak or
nocking point to a vertical line through the distal or pivot point
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maximum draw force shall be located at 28 ⁄4-in. (717.6 mm)
of the bow grip.
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DLPP, + ⁄4 –0 in. (6 mm).
2.1.3 force-draw curve—the graph curve generated by re-
4.1.2 Measure and record the draw force at 1.0-in. (25.4-
cording the draw force readings of an archery bow at 1.0-in. 1
mm) (or less) increments from brace height to at least 28 ⁄4-in.
(717-mm) DLPP (30-in. (762-mm) ATA) draw length.
4.1.3 From the force-draw curve (obtained in 4.1.2), deter-
1
This specification is under the jurisdiction of ASTM Committee F08 on Sports
mine the peak or maximum draw force that occurs between the
Equipment and Facilitiesand is the direct responsibility of Subcommittee F08.16 on
1
Archery Products. brace position of the bow and the full draw length of 28 ⁄4-in.
Current edition approved Nov. 1, 2011. Published November 2011. Originally
(717-mm) DLPP (30-in. (762-mm) ATA).
approved in 1994. Last previous edition approved in 2009 as F1544 – 09. DOI:
10.1520/F1544-11. 4.2 Test Arrows:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F1544−11
4.2.1 Select the test arrows of a shaft mate
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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.
An American National Standard
Designation:F1544–09 Designation: F1544 – 11
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
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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Terminology
2.1 Definitions of Terms Specific to This Standard:
2.1.1 archery trade association (ATA) draw length, n—the distance at the archer’s full draw from the string at the nocking point
3 1
to a vertical line through the pivot point of the bow grip 1 ⁄4 in. (+ ⁄4 in., –0 in.) (44 + 6.4 – 0 mm).
2.1.2 draw length pressure point (DLPP) draw length, n—the distance at the archer’s full draw from the string at the nocking
point to a vertical line through the distal or pivot point of the bow grip.
2.1.3 force-draw curve—the graph curve generated by recording the draw force readings of an archery bow at 1.0-in. (25.4-mm)
intervals or less, from brace height through set weight and to the center of the valley (if present), in order to reveal the energy
storage characteristics of the bow.
2.1.4 rating velocities, n—the initial velocity of an arrow weighing 5 grains per pound (0.073 g/N) of the bow’s Peak Draw
1
Force (60.5 grains (60.03 g) on total arrow weight) (60.073g) (0.03 g) from a bow set at no more than 70 6 ⁄2 lb (311.4 N)
Peak Draw Force and 30 in. (762 mm)ATAactual draw length. 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 weight) (60.073g).(0.03 g 6 0.4 N).Aminimum of (5) shots for each
test must be performed. Test shot velocities will then be averaged to determine the ATA Compound Bow Rating Velocity.
2.1.5 shooting machine—a device, equipped with a mechanical release, that secures a bow and releases an arrow to obtain
highly repeatable shooting results for various testing purposes.
2.1.6 stored energy—the energy required to draw a bow from brace height to full draw, usually expressed in foot-pounds
(joules).
3. Significance and Use
3.1 This specification will be used to determine a velocity under standard test conditions for rating an archery bow.
4. Test Methods
4.1 Force Draw Data:
4.1.1 For bows with adjustable draw force, adjust peak or maximum draw force to no more than 70 6 0.5 lb (311.4 6 12.22
N).The center of the valley of the force-draw curve (lowest force) attained after having passed through the peak or maximum draw
1 1
force shall be located at 28 ⁄4-in. (717.6 mm) DLPP, + ⁄4 –0 in. (6 mm).
4.1.2If the bow’s draw force cannot be adjusted to 70 6 0.1 lb (311.4 N) and an appropriate weight arrow cannot be obtained,
1
This specification is under the jurisdiction of ASTM Committee F08 on Sports Equipment and Facilities and is the direct responsibility of Subcommittee F08.16 on
Archery Products.
Current edition approved Dec.Nov. 1, 2009.2011. Published January 2010.November 2011. Originally approved in 1994. Last previous edition approved in 20042009 as
F1544 – 049. DOI: 10.1520/F1544-09.10.1520/F1544-11.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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