1、Designation: F 2546 07Standard Test Method forSnowboard Step-in Bindings1This standard is issued under the fixed designation F 2546; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses
2、 indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method specifies the essential requirements fora snowboard step-in bindingboot system (see 3.1.2); hereaf-ter referred to as step-in snowboard bi
3、ndings.1.2 This test method is applicable to step-in snowboardbindings for adults and children. This type of binding systemutilizes a mechanical interlocking mechanism, and the inter-lock mechanism of the system will be specific to the particularmanufacturer. Compatibility between different systems
4、is notexpected or anticipated thus each potential combination of bootand binding requires testing.1.3 For snowboard boots interfacing with ski binding, seeISO 11634.1.4 For snowboard plate bindings, see ISO 14790.1.5 For snowboard strap bindings made for soft boots, seeISO 14573.1.6 For snowboard st
5、ep-in bindings, see ISO 15344.1.7 This standard does not address how or under whatcircumstances a snowboard binding with programmable re-lease modes should release in its intended modes nor does itaddress the safety, desirability, or efficacy of any program-mable release mode for snowboard bindings;
6、 any testing ofsuch bindings to this standard must be performed with therelease modes disabled or adjusted to their highest releasevalue.1.8 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to e
7、stablish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2F 1107 Terminology Relating to Snowboarding2.2 ISO Standards:3ISO 554:1976 Standard Atmospheres for Conditioningand/or TestingSpecifica
8、tionsISO 6004 Alpine SkisSki Binding ScrewsRequirements1This test method is under the jurisdiction of ASTM Committee F27 on SnowSkiing and is the direct responsibility of Subcommittee F27.85 on Snowboarding.Current edition approved June 1, 2007. Published July 2007. Originally approvedin 2006. Last
9、previous edition approved in 2006 as F 2546 06.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available fro
10、m American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ISO 10958-1 SnowboardsBinding Mounting AreaPart1: Requirements and Test Methods for Snowboar
11、ds with-out InsertsISO 10958-2 SnowboardsBinding Mounting AreaPart2: Requirements and Test Methods for Snowboards withInsertsISO 11634 Snowboard BootsInterface with Ski BindingISO 14573 Snowboard Strap Bindings for Soft BootsISO 14790 Snowboard Plate BindingsISO 15344 Snowboard Step-in BindingsRequi
12、rementsand Test Methods3. Terminology3.1 Definitions:3.1.1 snowboard plate binding for hard bootsa connect-ing system between a hard boot and a snowboard that isaccomplished by means of a plate binding system. For refer-ence onlynot covered by this test method.3.1.2 snowboard step-in bindingboot sys
13、teman inter-locking system that connects a snowboard boot and a snow-board that utilizes a step-in interface.3.1.3 snowboard step-in binding type Abinding suitablefor riders over 45 kg body mass (adults).3.1.4 snowboard step-in binding type Cbinding suitableexclusively for a body mass up to 45 kg (c
14、hildren).3.1.5 snowboard strap binding for soft bootsa connectingsystem between a soft boot and a snowboard that is accom-plished by means of compression straps or other similardevices. For reference onlynot covered by this test method.3.2 Refer to Terminology F 1107 for terminology specific tosnowb
15、oarding.4. Testing Parameters4.1 This test method describes the steps required to evaluatea step-in snowboard binding system function. The test methodconsists of a series of laboratory tests that evaluate resistanceto static and dynamic loading, function under cold and icyconditions, impact and fati
16、gue behavior and assessment ofpotential false positive release. All tests must be passed.4.2 All possible strains on the boot can be attributed to onetorque M and one force F each on every axis X, Y, Z of a systemof coordinates (see Fig. 1). The point of origin of thecoordinates is agreed to be in t
17、he center of the ankle jointwhich is located approximately 100 mm from the plantarsurface and 80 mm from the back of the heel.4.3 The torques and forces illustrated in the drawing in Fig.1 are positive. The corresponding parameters acting in oppositedirection are given negative signs. The arrowheads
18、 indicate thesense of rotation of the snowboard boot movement.5. Apparatus5.1 One artificial leg with fixed ankle joint of 80 withouttoe section (see Fig. 2). Test size appropriate to the mid rangeof the sizing for the boot-binding system being tested.5.2 A rigid plate (for example, steel plate of a
19、t least 10mmthickness) with the appropriate mounting hole pattern formounting the binding capable of supporting the applied loadsand moments.5.3 Test device capable of applying the described forces andmoments. The test device shall be designed to allow applica-tion of a torque (see Table 1) with a f
20、orce applied at the upperpart of a 1000mm shaft connected to the artificial leg (see Fig.2).5.4 Fatigue test device for cyclic loading at the prescribedrates.5.5 Impact test device capable of delivering a minimum of120 J of energy at impact speeds up to 6 m/s.6. Sampling and Conditioning6.1 Three sa
21、mple pairs of snowboard boots and bindings areto be used for lab testing. Use one new sample for eachpotentially destructive test method.6.2 Unless otherwise noted, all tests shall be performed atroom temperature (see ISO 554:1976). All sample boots andbindings shall be preconditioned at 20C for a m
22、inimum of 90min prior to testing. Unless otherwise noted, each test shallstart within 2 min from when samples were removed from thecold. Surface temperature measurements should be made toensure that sufficient conditioning time had been achieved.7. Loading Rates7.1 Perform the test quasi-statically,
23、 ensuring that the fol-lowing indicative values of the torque gradient are respected:7.1.1 Torsion Values:dMzdt#50 Nm/s (1)7.1.2 Forward Bending Value:dMydt#220 Nm/s (2)7.1.3 Lateral Bending:FIG. 1 Torques and ForcesF2546072dMxdt#50 Nm/s (3)where:M = torque in the x, y or z direction in Newton-meter
24、s(Nm), andt = time (duration) of load application in seconds.NOTE 1The measurement error of the value in torsion and in forwardbending shall be no more than 62%.8. System Requirements8.1 Function:8.1.1 The snowboard binding shall retain the boot to thesnowboard under normal winter snowboarding condi
25、tions.This requirement is considered to be met if, after all testing iscompleted in accordance with Section 9:8.1.1.1 There are no fractures, cracks or other indications ofpermanent deformations in the binding.8.1.1.2 The binding can attach the boot in accordance withthe manufacturers instructions.8
26、.1.1.3 The attached boot does not slip out of the binding.8.1.1.4 The boot can be removed from the binding in theoriginal manner in accordance with the manufacturers instruc-tions.NOTE 2The loads defined in Table 1 are in line with the predictedforces normally seen under carving and all-mountain rid
27、ing conditions.These loads do not consider the effects of impacts, falls, jumping, etc.8.2 Retaining Leash and Mounting Point for RetainingLeash:8.2.1 The mounting points for the retaining leash shall beindicated by the manufacturer.8.2.2 The minimum breaking force of the mounting pointand of the re
28、taining leash shall be 500 N.8.2.3 The mounting instructions shall indicate that a retain-ing leash or anti-runaway device shall be applied to the bindingfor use when snowboarding.8.3 Snow PackThe snowboard binding shall latch with aminimum of 2 mm of snow pack between the boot sole and thebinding.9
29、. Testing Procedures9.1 The series of tests shown in 9.2-9.6 are to be used toevaluate the step-in boot-binding system function.9.2 False Positive Lock and ClearancePlace a minimum2mm (60.1mm) thick shim of polyethylene, roughly thesame shape as the outsole under the boot and verify that thestep-in
30、function still works in accordance with the manufac-turers instructions. Insert the boot into the binding andperform the static bending tests described in 9.3.9.3 Static Bending TestsMount the snowboard binding onthe rigid plate. Place the foot form in the boot and fastentightly. Mount the boot on t
31、he binding and place the entireassembly in the environmental chamber. After the snowboardbinding and mounting plates have been preconditioned, mountthe cold fixture in the test frame and apply a moment inaccordance with Table 1 in both directions with the cold bootand artificial leg at 20C.9.4 Impac
32、t TestingInsert the artificial leg into a new boot.Attach a new binding to the base plate of the impact testdevice. Attach the boot to the binding. Precondition the sampleat 20C for a minimum of 90 min. Apply impact in Fxdirection (to create My, see Fig. 1). A minimum velocity of 4m/s and minimum en
33、ergy absorption of 82 J shall be achieved.The test shall be performed within 5 min.9.5 Fatigue TestingMount the test sample on the test plateat 15 (63) off x-axis as shown in Fig. 3. Attach the boot tothe binding and test the system for 50 000 sinusoidal loadcycles with a frequency of 1 Hz (minimum)
34、 to 3 Hz (maxi-mum) in the 6MV direction.9.5.1 Apply a test torque load of 6100 N-m (65 %) forType A bindings (adults).9.5.2 Apply a test torque load of 666 N-m (65 %) for TypeC bindings (children).Dimension Length TestL11000 mm Static BendingL1300 mm Impact and FatigueL2100 mm All TestsL380 mm All
35、TestsL4Min=L53 0.85 Optional Shortened FootAcceptable for All TestsL5L5Full Length FootAcceptable for All TestsFIG. 2 Schematic Drawing of Artificial Leg for Binding TestsTABLE 1 Static Bending LoadsDirection and TorqueDirection Type A Type C6 Mx150 Nm 80 Nm6 My300 Nm 180 Nm6 Mz150 Nm 100 NmF2546073
36、NOTE 3This test to be performed at 20C (in an environmentalchamber).9.6 Testing Under Icy Conditions:9.6.1 Step-in Function with a Frozen Binding:9.6.1.1 Shower the mounted snowboard binding, withoutboot installed, in horizontal position with water at 23 6 5C for2 min. Then position vertically for 1
37、 min to remove excesswater. Finally freeze the entire system to 20C in a horizontalposition for at least 30 min.9.6.1.2 Test the binding function by performing the step-inprocedure using the boot and artificial leg.9.6.2 Step-in Release Function with a Frozen Binding:9.6.2.1 Shower the mounted snowb
38、oard binding, withoutboot installed, in horizontal position with water at 23 6 5C for2 min. Then position vertically for 1 min to remove excesswater. Finally freeze the entire system to 20C in a horizontalposition for at least 30 min.9.6.2.2 Test the binding function by removing the boot andartifici
39、al leg from the binding.10. Mounting Screws10.1 The snowboard binding shall be supplied with all partsnecessary for mounting the binding to the board in accordancewith the manufacturers instructions.10.2 Metric screws shall be used, preferably M6 class 6g forsnowboards with inserts (see ISO 10958-2)
40、. Unless otherwisenoted by the binding manufacturer, the mounting screw pro-trusion length shall be 5.5 6 0.5 mm from base of binding,when screws are fully tightened.10.3 For snowboards without inserts, ski-binding screwsshall be used in accordance with ISO 6004 (see ISO 10958-1).11. Marking11.1 Sno
41、wboard bindings shall be marked with the follow-ing data:11.1.1 For childrens snowboard bindings, the maximummass of the rider (45 kg) shall be clearly visible after mounting.11.1.2 The name or trademark, or both, of the manufacturer,supplier, or importer shall be clearly marked.NOTE 4Markings may b
42、e permanently molded into product or themarkings may be in the form of a sticker or printing placed directly on theproduct.12. Mounting Instructions12.1 Each snowboard binding shall be provided withmounting instructions, preferably with illustrations, whichshall comprise the following items:12.1.1 R
43、eference to the range of application (children/adults).12.1.2 Information which enables the correct mounting ofthe snowboard binding.12.1.3 Information for adjustment for the binding to theboot and its position on the board.12.1.4 A note that the mounting instructions shall be givento the customer.1
44、2.1.5 Indication that a retaining leash or a braking deviceshall be applied for the use of snowboards.12.1.6 An appropriate antiskid pad may be fitted on, orincluded as part of, the snowboard.13. Instructions for Use13.1 Each snowboard binding shall be supplied with in-structions for use, if possibl
45、e with illustrations, which shall becomprised of the following items:13.1.1 Indication of the scope of application (children/adults).13.1.2 Indication how to close and open the binding.13.1.3 Indication that for proper function the boot sole andbinding shall be cleaned of snow, ice and dirt.13.1.4 R
46、ecommendations for maintenance and care, in par-ticular the regular inspection of all screw connections andadjustments to the boots and bindings.13.1.5 Indication of how and where to attach the retainingleash and recommendations to the user that the leash orrunaway retention device should be used at
47、 all times whensnowboarding and when carrying the snowboard.13.1.6 Indication of how to install and use the antiskid pad.13.1.7 Information on the boot requirements and systemcompatibility.13.1.8 A note that the mounting instructions shall be givento the customer.Key:ATest SampleBSteel Plate 10 mm t
48、hick (minimum)C220 mm (minimum)D80 mmFIG. 3 Fatigue Test OrientationF2546074ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validit
49、y of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technic
