ASTM F504-05(2022)

Standard Test Method for Measuring the Quasi-Static Release Moments of Alpine Ski Bindings

SIGNIFICANCE AND USE
5.1 This test method involves simulation in the laboratory of potential injury-producing loads that can occur in skiing, without implying the frequency or the magnitude of the danger. This test method does not include the simulation of all or part of a skier, and care must be taken not to confuse the values of moments measured by the test shaft with the loads subjected to the tibia of a skier under the same conditions.
SCOPE
1.1 This test method covers a procedure for the measurement of release moments of ski bindings under conditions where inertia loadings of the ski binding system are not significant.  
1.2 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.  
1.3 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

• Status: Published
• Publication Date: 30-Jun-2022
• ICS: 97.220.20 - Winter sports equipment
• Technical Committee: F27 - Snow and Water Sports
• Drafting Committee: F27.10 - Binding Test Procedures

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: F504 − 05 (Reapproved 2022)
Standard Test Method for
Measuring the Quasi-Static Release Moments of Alpine Ski
1
Bindings
ThisstandardisissuedunderthefixeddesignationF504;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope ISO 9465Alpine Ski Bindings–Lateral Release under Im-
pact Loading-Test Method
1.1 This test method covers a procedure for the measure-
ment of release moments of ski bindings under conditions
3. Terminology
where inertia loadings of the ski binding system are not
3.1 The following terminology is introduced with reference
significant.
to the sketch of the boot-ski system shown in Fig. 1.
1.2 This standard does not purport to address all of the
3.1.1 Six points of load application to the standard test ski
safety concerns, if any, associated with its use. It is the
are required. With the adult boot sole (300 mm in length) the
responsibility of the user of this standard to establish appro-
mostforwardpoint,locatedataposition90 60.5cmfromthe
priate safety, health, and environmental practices and deter-
centerline of the test shaft, shall be called the “forward point”
mine the applicability of regulatory limitations prior to use.
andshallbedesignatedas F.Thesecondpoint,45 60.5cmin
1.3 This international standard was developed in accor-
front of the centerline of the test shaft, shall be designated the
dance with internationally recognized principles on standard-
“near point,” N. The third point, located 45 6 0.5 cm behind
ization established in the Decision on Principles for the
thecenterlineofthetestshaft,shallbedesignated“rearpoint,”
Development of International Standards, Guides and Recom-
R. The fourth point, located 35 6 0.5 cm in front of the center
mendations issued by the World Trade Organization Technical
line of the test shaft, shall be designated the “near preload
Barriers to Trade (TBT) Committee.
point,” NP. The fifth point, located 75 6 0.5 cm behind the
centerline of the test shaft shall be designated the “far rear
2. Referenced Documents
point,” FRP.Thesixthpoint,the“alternatenearpreloadpoint,”
2
2.1 ASTM Standards:
ANP, is located 7.5 6 0.25 cm, in the minus y-direction from
F498Test Method for Center Spring Constant and Spring
the point NP. For sole lengths longer than 300 mm the F and
Constant Balance of Alpine Skis
FR points are not changed from the location used for the 300
F779Test Method for Torsion Characteristic of Alpine Skis
mm boot sole. For sole lengths shorter than 300 mm the N, R,
F944Specification for Properties ofAdultAlpine Ski Boots
ANPand NPpoints are not changed from the location used for
3
(Withdrawn 2004)
the300mmsole.Forbindingswhicharetobeusedexclusively
4
2.2 ISO Standard: with skis shorter than the test ski, F and FR tests shall be
ISO 9838Alpine Ski Bindings–Test Soles for Ski Binding performed at the N and R points. If the ski is too short for the
Tests specifiedNandRpoints,NandRshallbemovedclosertothe
ISO 9462Alpine Ski Bindings–Safety Requirements and z-axis by 10 cm each, and all tests performed using the new N
Test Methods and R points. The forces that are applied to the standard ski at
these six designated points may now be described by simple
vector notation. A laboratory-fixed axis designation shall be
1
This test method is under the jurisdiction of ASTM Committee F27 on Snow
usedwiththenumeral zdenotingtheverticalaxisnormaltothe
and Water Sports and is the direct responsibility of Subcommittee F27.10 on
top face of the ski (in the region of the test shaft) and positive
Binding Test Procedures.
in the direction outward from the ski; the numeral x denoting
Current edition approved July 1, 2022. Published August 2022. Originally
ε1
approved in 1977. Last previous edition approved in 2017 as F504–05 (2017) .
the longitudinal axis, positive in the forward direction of the
DOI: 10.1520/F0504-05R22.
ski; and the numeral y denoting the lateral axis, the positive
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
direction of which is determined by the right-hand rule. The
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
z-axis is coincident with the centerline of the test shaft. The
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
origin of the XYZ coordinate system is a point 230 mm along
3
The last approved version of this historical standard is referenced on
theaxisofthetestshaftfromthebearingsurfaceofthetest
...