ASTM F1436-11(2017)
(Guide)Standard Guide for Center Serving Diameter Dimensions for Archery Bow Strings
Standard Guide for Center Serving Diameter Dimensions for Archery Bow Strings
SIGNIFICANCE AND USE
3.1 This guide is not meant to be all inclusive since there are, and will continue to be, special circumstances that will dictate the use of nonconforming dimensions. These special circumstances and the requirements that they establish cannot be totally anticipated and therefore must be treated individually.
3.2 These guidelines are based on an analysis of presently used materials for the manufacture of bow strings and the strength requirements dictated by archery bows falling within a draw weight range of 0 to 100 lb (0 to 444.8 N).
3.3 These guidelines also address the desirability of proper fit of the arrow nock to the center serving.
SCOPE
1.1 This guide covers the formulation of preliminary guidelines for the outside diameter dimensions of the center servings for the shooting strings for archery bows.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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
Relations
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: F1436 − 11 (Reapproved 2017) An American National Standard
Standard Guide for
Center Serving Diameter Dimensions for Archery Bow
Strings
This standard is issued under the fixed designation F1436; 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 2.1.3 center serving, n—wrapping of twisted or braided line,
or monofilament material, that is placed on the bow string near
1.1 This guide covers the formulation of preliminary guide-
its center.
lines for the outside diameter dimensions of the center servings
2.1.3.1 Discussion—This wrapping covers the area where
for the shooting strings for archery bows.
the nock of the arrow engages the bow string. It is used to resist
1.2 The values stated in inch-pound units are to be regarded
the abrasive wear of repeated shots and also to provide a proper
as the standard. The values given in parentheses are for
fit with the slot of the nock.
information only.
2.1.4 draw weight of the bow, n—peak or maximum force
1.3 This international standard was developed in accor-
required to draw the bow string of a bow from its position at
dance with internationally recognized principles on standard-
rest (brace height) to the full draw position.
ization established in the Decision on Principles for the
2.1.5 nock, n—slot, or a special fitting that contains a slot,
Development of International Standards, Guides and Recom-
that is positioned at the rear end of an arrow to engage the bow
mendations issued by the World Trade Organization Technical
string.
Barriers to Trade (TBT) Committee.
2.1.5.1 Discussion—The slot maintains secure contact with
the bow string while the bow is being drawn, and also during
2. Terminology
the release of the string and the return of the string to its
2.1 Definitions of Terms Specific to This Standard:
original position before being drawn.
2.1.1 bow string, n—special multi-strand cord that spans an
2.1.6 string groove width or slot throat dimension,
archery bow from end to end and is used to engage the rear end
n—narrowest portion of the slot opening in the nock, usually
of an arrow in order to launch it into flight.
located near the open end of the slot.
2.1.2 bow string material, n—strands of various materials,
2.1.7 string hole size, n—dimension at the bottom or base of
both natural and synthetic, from which bow strings are made.
the nock slot.
2.1.2.1 Discussion—Most bow strings today are manufac-
2.1.7.1 Discussion—This is the area where the bow string
tured from synthetic materials that have superior strength and
sits when it is seated in the slot.
resistance to wear and atmospheric conditions. Difference in
the tensile strength of the materials is responsible for a 3. Significance and Use
difference in the size and number of the strands in a bowstring.
3.1 This guide is not meant to be all inclusive since there
In addition, difference in the force necessary to draw various
are, and will continue to be, special circumstances that will
bows may dictate varying numbers of strands of a given
dictate the use of nonconforming dimensions. These special
material to provide adequate strength for satisfactory service.
circumstances and the requirements that they establish cannot
The material used for wrapping to create a center serving is
be totally anticipated and therefore must be treated individu-
available in several sizes or diameters. This, combined with
ally.
variation in the number of strands used to make the main
3.2 These guidelines are based on an analysis of presently
string, permits adjustment of the outside diameter of the center
used materials for the manufacture of bow strings and the
serving within reasonable limits so that standardization is
strength requirements dictated by archery bows falling within
practical.
a draw weight range of 0 to 100 lb (0 to 444.8 N).
3.3 These guidelines also address the desirability of proper
This guide is under the jurisdiction of ASTM Committee F08 on Sports
fit of the arrow nock to the center serving.
Equipment, Playing Surfaces, and Facilitiesand is the direct responsibility of
Subcommittee F08.16 on Archery Products.
4. Fit of the Nock on the Center Serving
Current edition approved Dec. 1, 2017. Published December 2017. Originally
4.1 Preferable Fit—While there are some instances where
approved in 1992. Last previous edition approved in 2011 as F1436 – 11. DOI:
10.1520/F1436-11R17. the practice is not followed, the majority of archers prefer that
Copyright © ASTM International, 100 Barr Harbor Drive, PO B
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.