1、Designation: F1414 13F1414 15Standard Test Method forMeasurement of Cut Resistance to Chain Saw Chainsaw inLower Body (Legs) Protective Clothing1This standard is issued under the fixed designation F1414; the number immediately following the designation indicates the year oforiginal adoption or, in t
2、he 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 garments and devices worn to protect the
3、lower body (legs) 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, it will be decid
4、edif this test method will be used to determine one or both of the following: (1)(1 chainspeed ) chain speed 50 (CS50), and (2)(2)success/failure (jamming/chain stop or no cut in less than 1.5 seconds)s) at specified chain speed.1.3 This test method may be used to determine levels of protection for
5、areas of coverage as stipulated in established safetystandards.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
6、This standard does not purport to address all of the safety 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 Documen
7、ts2.1 The following documents, form a part of this specification to the extent referenced herein:2.2 ASTM Standards:2D123 Terminology Relating to TextilesD1056 Specification for Flexible Cellular MaterialsSponge or Expanded RubberD1776D1776/D1776M Practice for Conditioning and Testing TextilesF1494
8、Terminology Relating to Protective Clothing2.3 AATCC Test Methods:3AATCC 96 Dimensional Changes in Laundering of Woven and Knitted Fabrics, except Wool (1988)AATCC 158 Dimensional Changes on Dry Cleaning in Perchloroethylene: Machine Method2.4 Military Standards:4MIL-STD-105 Sampling Procedures and
9、Tables for Inspection by Attributes2.5 Federal Standard:4FS 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.Curr
10、ent edition approved Jan. 1, 2013Nov. 1, 2015. Published January 2013January 2016. Originally approved in 1992. Last previous edition approved in 20042013 asF1414 - 04.F1414 - 13. DOI: 10.1520/F1414-13.10.1520/F1414-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactAS
11、TM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available fromAmericanAssociation of Textile Chemists and Colorists (AATCC), One Davis Dr., P.O. Box 12215, Research Triangle Park, NC 27709
12、-2215.27709-2215,http:/www.aatcc.org.4 Available from Standardization Documents Order Desk, Bldg. 4 Section D, DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA 19111-5094,Attn: NPODS.http:/quicksearch.dla.mil.This document is not an ASTM standard and is intended only to provid
13、e the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit 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 st
14、andard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13. Terminology3.1 Definitions:3.1.1 chain saw, na portable power operated tool used for cutting wood which has cutte
15、rs linked in a chain.3.1.2 chain speed, nthe velocityspeed of synchronized movement of linked cutters around a guide bar and sprocket.3.1.3 chainspeed chain speed 50 (CS50), nfor chain saw chainsaw protection, the mean velocityspeed at which cut throughoccurs.3.1.3.1 DiscussionThis value establishes
16、 the relationship between the probability of cutting through the protective clothing (or foot protective device)and the speed of the saw chain. For lower chain speeds, the probability of cut through approaches zero, while for higher chainspeeds, the probability of cut through approaches one.3.1.4 ch
17、ain stop, nthe resulting action when a material clogs (jams) the drive sprocket or slows the speed sufficiently toprevent advancement of the saw chain.3.1.5 cut resistance, nin chain saw chainsaw testing, the ability of a material, while in contact with the linked cutters, to resistcut through of th
18、e cutters of a moving saw chain independent of either jamming or chain stop.3.1.6 cut-through, nfor chain saw chainsaw cut resistance, the action of a running chain saw chainsaw after completebreakthrough of either a protective garment or protective device.3.1.6.1 DiscussionWhen a cut through is eff
19、ected, speed of the saw chain must be measured.3.1.7 jamming, nfor chain saw chainsaw cut resistance, the clogging action manifested by a protective garment or a devicethat can produce a chain stop.3.1.8 lower body, nthat part of the human body which includes all portions between the waist and feet,
20、 not to include the feet.3.1.9 protective clothing, nan item of clothing that is specifically designed and constructed for the intended purpose ofisolating all or part of the body from a potential hazard, or isolating the external environment from contamination by the clothing.3.1.9.1 DiscussionFor
21、chain saw chainsaw cut resistant protective clothing, the potential hazard is exposure to a running power saw chain.3.1.10 saw chain, na closed loop of cutters linked together for use in a portable power-operated tool.3.2 For definitions of other textile terms used in this test method, refer to Term
22、inology D123.3.3 For definitions of other protective clothing, terms used in this test method, refer to Terminology F1494.4. Summary of Test Method4.1 Test specimens are securely mounted on a test apparatus which simulates a human leg.4.2 A chain saw, chainsaw, of specific characteristic and operati
23、ng at a designated speed, is brought into contact with the testspecimen.4.2.1 The cutting action of the saw chain will achieve one of the following results; (1)(1) complete cut through with chain stop,(2) complete cut through without chain stop, (3) no cut through with a chain stop, or (4) no cut th
24、rough without a chain stop.4.3 Chain speed is measured electronically just prior to contact with test specimen. Chain speed is adjusted and reported basedon these measurements.NOTE 2Materials may be characterized by repeated testing at different speeds, followed by a calculation of CS50. Alternative
25、ly, for quality control,results may be reported as pass or fail at one pre-selected chain speed.5. Significance and Use5.1 The purpose of this test method is to provide a measurable criterion of performance about the level of cut resistance providedby different types of protective garments and prote
26、cted coverings worn by chain saw chainsaw operators.5.2 This test method is intended to show to what level a protective garment can offer resistance to the cutting action of a chainsaw.chainsaw.5.3 The protection which can be demonstrated by the garments and coverings tested in accordance with this
27、test method isachieved by: (1)(1) the cut resistance of the material to cutting when put in contact with saw chain; (2)(2) pulling a part of theF1414 152material or yarns in the material so that they are drawn into the chain and drive mechanism to block the chain movement; (3)(3)the fibers of the ma
28、terials used to demonstrate both high resistance to cutting and the capacity to absorb rotational energy, so thatchain speed can be slowed down sufficiently to stop the movement of the saw chain; or (4)(4) any combination of these.5.4 This test method does not purport to evaluate comfort of lower bo
29、dy protective garments.5.5 In case of a dispute 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 labora
30、tories. Competent statistical assistance 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 testin
31、g. If a bias is found, either its cause must be determined andcorrected or the purchaser and the supplier must agree to interpret future test results in light of the known bias.6. Apparatus56.1 Apparatus consists of three main components:6.2 Specimen Holder:6.2.1 A stationary wooden cylinder having
32、a diameter of 150 mm (6 in.) and a minimum length of 350 mm (14 in.) (see Fig.1).6.2.1.1 The cylinder is covered with a vinyl nitrile foam having a thickness of 18 mm (0.75 in.) (see Fig. 1). This covering shallhave a density between 55 and 80 kg/m2 and its resistance to a 25 % compression shall be
33、between 10 and 20 kPa measured inaccordance with the testing procedure in Specification D1056.NOTE 3Ensolite M, a synthetic foam rubber made of PVC and NBR, meets the requirements stipulated in Specification D1056.6.2.1.2 Two specimen attachment plates each secured by two screws to the wooden cylind
34、er parallel to the axis of that cylinder.Each plate is 75 by 25 mm (3 by 1 in.) (see Fig. 1).6.2.1.3 The stationary wooden cylinder shall be attached to a swivel mechanism that allows the mandrel to be moved to an angleof either 45 or 90 to the vertical plane of the guide bar. Specimen must be secur
35、ely attached to mandrel to prevent movementof specimen.6.3 Chain Saw Chainsaw and Related Equipment:6,76.3.1 Saw:6.3.1.1 A gas-powered chain saw chainsaw having an idle speed of 2250 6 250 rpm, a maximum power of 3.3 6 0.3 kW at8500 rpm that meets the following specifications: (1)(1) 66.7 cm3 or 4.0
36、 in.3; (2)(2) bore 50 mm; (3)(3) stroke 34 mm; (4)(4) clutchengagement speed of 3450 6 250 rpm; (5)(5) maximum no load speed of 12 500 rpm; (6)(6) maximum no load chain speed of27 m/s (5475 f/m); and (7)(7) 38 by 7 tooth rim drive sprocket. (Figs. 3 and 4)6.3.1.2 Throttle control mechanism is used t
37、o maintain constant saw chain speed.6.3.1.3 The engine of the chain saw chainsaw is a two-stroke engine that uses a gasoline/oil mixture. The gasoline shall be apremium unleaded without alcohol additive and having a minimum anti-knock rating of 90. The oil shall be a high-qualitytwo-stroke oil espec
38、ially developed for chain saws. chainsaws. Mix ratio is 50 + 1 (2 % two-stroke oil to 98 % gasoline).6.3.1.4 Chain saw Chainsaw power head shall be checked using a dynamometer after any of the following: (1) when CS50 ofa calibration sample lot exceeds a range of speed greater than 13.9 m/s 6 1.0 m/
39、s (2750 fpm 6 200 fpm); (2) after 120 test cuts;or (3) when chain saw chainsaw has been idle for more than 30 days.6.3.1.5 The chain saw chainsaw shall be fitted with a resistive type plug to reduce interference with the chain speed electronics.NOTE 4When testing constraints prevent dynamometer veri
40、fication, technician is responsible to check that the engine is running smoothly, startsreadily, has a clean screen, if present, a good spark plug, and so forth.NOTE 5All requirements of the chain saw chainsaw are determined in accordance with many manufacturers published specifications.6.3.2 Chain:
41、7,86.3.2.1 A chain with a pitch of 10 mm (38 in.), a 0.058-in. gage, and a round ground full chisel cutter.6.3.2.2 New chain may be used without sharpening or the chain must be sharpened using the sharpening procedure noted inAnnex A1 before testing.6.3.3 Guide Bar:6.3.3.1 A guide bar having a lengt
42、h of 500 mm (20 in.) with an eleven-tooth roller-nose sprocket designed to accommodate a10-mm (38-in.) pitch, 0.058 in. gage saw chain.5 See Appendix X1 to review maintenance checklist.6 Husqvarna Model 266, XP with a seven tooth drive sprocket, available from Husqvarna, 907 W. Irving Park Road, Ita
43、sca, IL 60143, 312-773-2777.7 This is the sole source of supply known to the committee at this time. If you are aware of alternative suppliers, please provide this information to ASTM Headquarters.Your comments will receive careful consideration at a meeting of the responsible technical committee,1
44、which you may attend.8 The sole source of supply of the saw chain with a pitch of 10 mm (0.40 in.),38, 72LP (73LP) Oregon Type, known to the committee at this time is Blount, Inc., 4909 S.E. International Way, PO Box 22127, Portland, OR 97222. If you are aware ofalternative suppliers, please provide
45、 this information to ASTM International Headquarters.F1414 153Item Quantity DescriptionA 1 steel plate 0.25 by 576 by 670 mmB 2 steel plate 0.25 by 216 by 375 mmC 2 steel plate 0.25 by 208 by 216 mmD 1 steel tube 0.75 by ID 1 mm OD by 172 mmE 1 aluminum plate 0.5 by 4 by 14.5 mmF 1 hardwood or white
46、 pine 152 by 400 mmG 2 hinge 3 by 3 by 116 in.H 1 foam pad 15 by 180 by 360 mm + glueI 6 threaded rod 0.40 by 16 by 120 mmJ 12 bolt 0.40 by 16 mmK 8 wood screw 8 by .75 mm TRL 1 steel axle .75 mm diameter 350 threaded .75mm 10 mm 80 mm at each endM 2 pillow block VPS112 valuline browingN 5 bolt 0.75
47、 by 10 mmO 1 hex bolt 0.75 by 10 by 70 mmP 1 square 30 mm 90 mm 316 75LQ 1 stopping block 20 mm 40 mm 60LR 1 lever support 316 80 mm 130 mmS 1 lever 0.25 by 60 by 120 mmT 1 axle 0.250U 1 compression springV 1 micro-switchW 1 safety shield pivoting on DNOTE 1Measurements are in millimetres. Arcs of a
48、 circle are measured on the circumference of the wood cylinder.FIG. 1 Specimen Holder (Front View Facing Chain Saw)Chainsaw)FIG. 2 Specimen Holder (Attachment and Positioning)F1414 1546.3.3.2 The roller nose on the guide bar will need to be cleaned at periodic intervals. To facilitate repeated clean
49、ings, the rivetsattaching the roller nose to the bar should be replaced. Modification requires that rivets be removed and holes be enlarged bydrilling, so that aircraft quality bolts and locking nuts can be used.6.3.4 Chain Guidance and Lubrication:6.3.4.1 The saw chain shall be able to turn freely around the drive sprocket and roller nose. The system shall be adequatelylubricated. Chain tension shall be adjustable so that application of a force of 15 N on the middle of the guide bar causes a chaindeflection of 6 6 0.5 mm.6.4
