ASTM F1458-2015 Standard Test Method for Measurement of Cut Resistance to Chainsaw of Foot Protective Devices《测量护脚设备耐链锯切割的标准试验方法》.pdf

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1、Designation: F1458 04 (Reapproved 2008)F1458 15Standard Test Method forMeasurement of Cut Resistance to Chain Saw Chainsaw ofFoot Protective Devices1This standard is issued under the fixed designation F1458; the number immediately following the designation indicates the year oforiginal adoption or,

2、in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method measures cut resistance of foot protective devices that are desi

3、gned to protect the foot when operating achain saw. chainsaw.1.2 This test method may be used to test for compliance to minimum performance requirements in established safety standards.1.2.1 By agreement between the purchaser and the supplier, or as required by established safety standards, this tes

4、t method canbe used to determine any one or both of the following: (1) chainspeed chain speed 50 (CS50), (2) success/failure (jamming/chainstop) at specified chain speed.1.3 This test method may be used to determine levels of protection for areas of coverage as stipulated in established safetystanda

5、rds.1.4 The values stated in SI units are to be regarded as standard.NOTE 1The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, withoutcombining values in any way.1.5 This standard does not purport to address all of the safety

6、 concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to Textiles

7、D1056 Specification for Flexible Cellular MaterialsSponge or Expanded RubberD1776 Practice for Conditioning and Testing TextilesF1414 Test Method for Measurement of Cut Resistance to Chainsaw in Lower Body (Legs) Protective ClothingF1494 Terminology Relating to Protective Clothing2.2 AATCC Test Meth

8、ods:3AATCC 96 Dimensional Changes in Laundering of Woven and Knitted Fabrics, Except Wool (1988)AATCC 158 Dimensional Changes on Drycleaning in Perchloroethylene: Machine Method2.3 Military Standards:4MIL-STD-105 Sampling Procedure and Tables for Inspection by AttributesMIL-C-12369 Cloth, Ballistic,

9、 Nylon2.4 Federal Standard:5FS 5100-86 Type II, Cloth, Duck, Nylon, Polyurethane Coated1 This test method is under the jurisdiction of ASTM Committee F23 on Personal Protective Clothing and Equipment and is the direct responsibility of SubcommitteeF23.20 on Physical.Current edition approved June 15,

10、 2008Nov. 1, 2015. Published July 2008January 2016. Originally approved in 1998. Last previous edition approved in 20042008 asF1458 - 04.F1458 - 04(2008). DOI: 10.1520/F1458-04R08.10.1520/F1458-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at

11、 serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from American Association of Textile Chemists and Colorists (AATCC), P.O. Box 12215, Research Triangle Park, NC 27709,27709-2215, http:/www.aatcc.org.4

12、Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA19111-5098, http:/www.dodssp.daps.mil. 19111-5094, http:/quicksearch.dla.mil.5 Available from Superintendent of Documents, U.S. Government Printing

13、Office, Washington, DC 20402.Publishing Office, 732 North Capitol Street, NW, Washington,DC 20401-0001, http:/www.gpo.gov.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. Becauseit

14、 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 versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr H

15、arbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13. Terminology3.1 Definitions:3.1.1 centerline, nin foot protective devices, a line that extends from the toe of the footwear horizontally along the sole to theheel vertically to the top of the footwear, and diagonally to the

16、point of intersection at the toe.3.1.2 chain saw, chainsaw, na portable power-operated tool that has cutters linked in a chain used for cutting wood.3.1.3 chain speed, nthe velocityspeed of synchronized movement of linked cutters around a bar and sprocket.3.1.4 chainspeed chain speed 50 (CS50), nfor

17、 chain saw chainsaw protection, the mean velocityspeed at which cut throughoccurs.3.1.4.1 DiscussionThis value establishes the relationship between the probability of cutting through the chain saw chainsaw leg protective clothing(or foot protective device) and the speed of the saw chain. For lower c

18、hain speeds, the probability of cut through approaches zero,while for higher chain speeds, the probability of cut through approaches one.3.1.5 chain stop, nfor chain saw chainsaw cut resistance, the resulting action when a material clogs (jams) the drive sprocketor slows the speed sufficiently to pr

19、event advancement of the saw chain.3.1.6 cut resistance, nthe ability of a material, while in contact with the linked cutters, to resist cut through of the cutters ofa moving saw chain, independent of either jamming or chain stop.3.1.7 foot, nthe terminal part of the vertebrate leg, including the an

20、kle, upon which an individual stands.3.1.8 foot protective device, nfor chain saw chainsaw cut resistance, an article of personal equipment which covers the footand ankle for the purpose of providing limited protection from injury due to contact with a moving saw chain.3.1.9 footwear, na boot or sho

21、e of any construction.3.1.10 gaiter, nfor chain saw chainsaw cut resistance, a foot protective device permanently attached to the outside of thefootwear.3.1.11 jamming, nfor chain saw chainsaw cut resistance, the clogging action manifested by a protective garment or devicethat can produce a chain st

22、op.3.1.12 saw chain, na closed loop of cutters linked together for use in a portable power-operated tool.3.1.13 toe area cut zone, n in the testing of foot protective devices, that area excluding the sole that extends from the frontmostpart of the footwear to a vertical plane 15 6 0.25 mm behind the

23、 toe box; or in the absence of a toe box, the area that extends toa vertical plane 65 6 6.25 mm from the front of the footwear.3.1.14 toe box, nin testing of foot protective devices, a component inserted into the toe area of footwear.3.1.15 upper, nthat area of the footwear above the sole.3.1.16 upp

24、er cut zone, n in the testing of foot protective devices, the area starting at the top of the area of protection on thefootwear and extending downward to include the entire upper, but excluding the toe area cut zone.3.2 For definitions of other protective clothing terms used in this test method, ref

25、er to Terminology F1494.4. Summary of Test Method4.1 Test specimens are securely mounted on a test apparatus.4.2 A chain saw, of specific characteristic and operating at a designated speed, is brought into contact with the test specimenat specified locations.4.2.1 The cutting action of the saw chain

26、 will achieve one of three results (1) complete cut through, (2) no cut through whilesaw chain continues to run, or (3) complete chain stop.4.3 Data collection of cut resistance and CS50 is measured electronically by means of wires placed on the top and the bottomof the test specimen to measure cut

27、through time, and an electronic means to measure chain speed just prior to contact with testspecimen and after contact is initiated.5. Significance and Use5.1 The purpose of this test method is to provide a measurable criterion of performance defining the level of cut resistance tothe cutting action

28、 of a saw chain provided by foot protective devices.5.2 The protection, which can be demonstrated by the foot protective devices, tested in accordance with this test method, isachieved by (1) the material resisting cutting when put in contact with the moving saw chain; (2) a part of the material bei

29、ng drawnF1458 152into the saw chain and drive mechanism to block the saw chain movement; (3) the materials resisting cutting and absorbingrotational energy so that saw chain speed can be slowed down sufficiently to stop the movement of the saw chain; or (4) anycombination of these.5.3 In case of a d

30、ispute arising from differences in reported test results, when using this test method for acceptance testing ofcommercial shipments, the purchaser and the supplier should perform comparative tests to determine if there is a statistical biasbetween their laboratories. Competent statistical assistance

31、 is recommended for the investigation of bias. As a minimum, the twoparties should take a group of test specimens from the same lot of components to be evaluated. The test specimens should thenbe randomly assigned in equal numbers to each laboratory for testing. If a bias is found, either its cause

32、must be determined andcorrected, or the purchaser and the supplier must agree to interpret future test results in light of the known bias.6. Apparatus6.1 Specimen Holder for Calibration, in accordance with Test Method F1414.6.2 Mounting Bracket for Footwear and Footwear with Protective Devices:6.2.1

33、 The mounting bracket must enable the footwear to be moved so that test cuts can be made at stipulated positions (see Fig.1Figs. 1-4 to ). 4).6.2.2 The mounting bracket shall enable footwear to be secured for testing in a manner that neither enhances nor inhibits thecut resistance of the foot protec

34、tive device.NOTE 2Securing or mounting mechanisms should enable footwear, if necessary, to be used for multiple evaluations of protective devices.6.3 Footwear Form for Mounting Removable Foot Protective DeviceDevice:6,7:6.3.1 The footwear form used for mounting a removable foot protective device sha

35、ll be similar to that shown in Fig. 5.6.3.2 The method of securing the foot protective device to the form shall be the same as that method used to secure the deviceto footwear.6.3.3 The form shall then be secured for testing to the aforementioned mounting bracket in a manner that neither enhances no

36、rinhibits the cut resistance of the foot protective device.6.4 Chain Saw Chainsaw and Related EquipmentThe chain saw chainsaw and related equipment is in accordance with TestMethod F1414.6.5 Chain Saw Chainsaw Support BracketThe chain saw chainsaw support bracket is in accordance with Test Method F1

37、414.6.6 Interfaced Data Acquisition SystemThe interfaced data acquisition system is in accordance with Test Method F1414.6.7 Filling MaterialMaterial:8,7:6.7.1 The filling material used to provide shape and mass to the footwear shall be pellets made of a high-density polyethylenesimilar to that used

38、 for injection molding.6.7.1.1 This includes footwear with chain saw chainsaw cut protection which is an integral part of the footwear, as well as thefootwear that is worn on the inside of a removable foot protective device.6.7.2 The filling material shall be held in place by covering with a weight

39、of 2 kg 6 20 g.6 The sole source of supply of the footwear form known to the committee at this time is Satra, Satra House, Rockingham Road, Kettering, Northants, NN16 9JH, England.7 If you are aware of alternative suppliers, please provide this information to ASTM International Headquarters. Your co

40、mments will receive careful consideration at ameeting of the responsible technical committee committee,1, which you may attend.8 The sole source of supply of the Style No. LM-6007-00 polyethylene pellets known to the committee at this time is Quantum Chemical Corp., 11500 N. Lake Drive,Cincinnati, O

41、H 45249.FIG. 1 Upper Cut Test PositionF1458 153NOTE 3The weight can be a bag containing leadshot, sand, steel pellets, or some other material to achieve the desired mass.7. HazardsNOTE 4Warning:The chain saw chainsaw equipment used in the procedure of this test method can pose a potential danger to

42、the technician if specificsafety precautions are not followed.7.1 As a minimum safety precaution, it is suggested that the spark plug wire be disengaged until the engine needs to be started.7.2 As a further safety precaution, it is suggested that the spark plug wire be grounded by circuitry after cu

43、tting the lower wireof the data collection system. If the saw chain stops before the wire is cut, or if the saw chain slides over the specimen, a timershould limit the test and stop the engine by grounding the electric circuitry of the chain saw. chainsaw.7.3 The technician performing these tests sh

44、ould use hearing protection to avoid potential loss of hearing.7.4 The technician performing these tests should use eye protection to avoid potential eye injury.FIG. 2 Upper Test Cut PositionFIG. 3 Toe Cut Test PositionF1458 1547.5 The chain saw chainsaw engine should be vented to prevent potential

45、danger posed by carbon monoxide.FIG. 4 Toe Cut Test PositionFIG. 5 Footwear Form for Gaiter/LinerF1458 1558. Sampling8.1 Lot SampleThe number of units that constitute a production lot and the number of samples required to be evaluated fromthat lot will be determined by agreement between the client a

46、nd the facility using this test method. This determination must alsoconsider how many units constitute a meaningful measurement of consistent quality that will result in achievement of similarvalues.8.2 Number of Specimens:8.2.1 A pair is considered as two test specimens, one left-foot protective de

47、vice and one right-foot protective device.8.2.2 If this test method is used to determine CS50 a minimum of six specimens (3 pairs) at each test cut position will be needed.8.2.3 If this test method is used to determine “pass/fail” at a specific saw chain speed of an established safety standard, amin

48、imum of six specimens (3 pairs) at each test cut position must pass.8.2.4 If this test method is used to determine cut through time at a specified speed, a minimum of six specimens (3 pairs) ateach test cut position will be needed.9. Calibration9.1 The calibration procedures described in Test Method

49、 F1414 shall be utilized for this test method.10. Conditioning10.1 Footwear:10.1.1 Place the footwear in a room with an ambient condition of 70 6 10F (21 6 6C) and a relative humidity of 50 6 15 %.10.1.2 Footwear shall be conditioned in this manner for at least 24 h.10.2 Foot Protective Devices Permanently Attached:10.2.1 Textile MaterialsCondition textile foot protective devices that are permanently attached to the footwear in the samemanner as footwear.10.2.2 Non-Textile MaterialsCondition non-textile foot protective devices that are permane