ASTM F1458-15(2022)
(Test Method)Standard Test Method for Measurement of Cut Resistance to Chainsaw of Foot Protective Devices
Standard Test Method for Measurement of Cut Resistance to Chainsaw of Foot Protective Devices
SIGNIFICANCE AND USE
5.1 The purpose of this test method is to provide a measurable criterion of performance defining the level of cut resistance to the cutting action 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 is achieved by: (1) the material resisting cutting when put in contact with the moving saw chain; (2) a part of the material being drawn into the saw chain and drive mechanism to block the saw chain movement; (3) the materials resisting cutting and absorbing rotational energy so that saw chain speed can be slowed down sufficiently to stop the movement of the saw chain; or (4) any combination of these.
5.3 In case of a dispute arising from differences in reported test results, when using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should perform comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens from the same lot of components to be evaluated. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. If a bias is found, either its cause must be determined and corrected, or the purchaser and the supplier must agree to interpret future test results in light of the known bias.
SCOPE
1.1 This test method measures cut resistance of foot protective devices that are designed to protect the foot when operating a 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 test method can be used to determine any one or both of the following: (1) chain speed 50 (CS50), (2) success/failure (jamming/chain stop) 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 safety standards.
1.4 The values stated in SI units are to be regarded as standard.
Note 1: The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any way.
1.5 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.
1.6 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: F1458 − 15 (Reapproved 2022)
Standard Test Method for
Measurement of Cut Resistance to Chainsaw of Foot
Protective Devices
This standard is issued under the fixed designation F1458; 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. Referenced Documents
1.1 This test method measures cut resistance of foot protec- 2.1 ASTM Standards:
tive devices that are designed to protect the foot when F1414 Test Method for Measurement of Cut Resistance to
operating a chainsaw. Chainsaw in Lower Body (Legs) Protective Clothing
F1494 Terminology Relating to Protective Clothing
1.2 This test method may be used to test for compliance to
2.2 AATCC Test Methods:
minimum performance requirements in established safety stan-
AATCC 96 Dimensional Changes in Laundering of Woven
dards.
and Knitted Fabrics, Except Wool (1988)
1.2.1 By agreement between the purchaser and the supplier,
AATCC 158 Dimensional Changes on Drycleaning in Per-
or as required by established safety standards, this test method
chloroethylene: Machine Method
can be used to determine any one or both of the following: (1)
2.3 Military Standards:
chain speed 50 (CS50), (2) success/failure (jamming/chain
MIL-STD-105 Sampling Procedure and Tables for Inspec-
stop) at specified chain speed.
tion by Attributes
1.3 This test method may be used to determine levels of
MIL-C-12369 Cloth, Ballistic, Nylon
protection for areas of coverage as stipulated in established
2.4 Federal Standard:
safety standards.
FS 5100-86 Type II, Cloth, Duck, Nylon, Polyurethane
1.4 The values stated in SI units are to be regarded as Coated
standard.
3. Terminology
NOTE 1—The values stated in each system may not be exact equiva-
3.1 Definitions:
lents; therefore, each system must be used independently of the other,
3.1.1 centerline, n—in foot protective devices, a line that
without combining values in any way.
extendsfromthetoeofthefootwearhorizontallyalongthesole
1.5 This standard does not purport to address all of the
to the heel vertically to the top of the footwear, and diagonally
safety concerns, if any, associated with its use. It is the
to the point of intersection at the toe.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter- 3.1.2 chainsaw, n—a portable power-operated tool that has
mine the applicability of regulatory limitations prior to use. cutters linked in a chain used for cutting wood.
1.6 This international standard was developed in accor-
3.1.3 chain speed, n—the speed of synchronized movement
dance with internationally recognized principles on standard-
of linked cutters around a bar and sprocket.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
mendations issued by the World Trade Organization Technical
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Barriers to Trade (TBT) Committee.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Available from American Association of Textile Chemists and Colorists
ThistestmethodisunderthejurisdictionofASTMCommitteeF23onPersonal (AATCC), P.O. Box 12215, Research Triangle Park, NC 27709-2215, http://
Protective Clothing and Equipment and is the direct responsibility of Subcommittee www.aatcc.org.
F23.20 on Physical. Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,
Current edition approved Dec. 1, 2022. Published December 2022. Originally Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.
approved in 1998. Last previous edition approved in 2015 as F1458 – 15. DOI: Available from U.S. Government Publishing Office, 732 North Capitol Street,
10.1520/F1458-15R22. NW, Washington, DC 20401-0001, http://www.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1458 − 15 (2022)
3.1.4 chain speed 50 (CS50), n—for chainsaw protection, 4.3 Data collection of cut resistance and CS50 is measured
the mean speed at which cut-through occurs. electronically by means of wires placed on the top and the
3.1.4.1 Discussion—This value establishes the relationship bottom of the test specimen to measure cut-through time, and
between the probability of cutting through the chainsaw leg an electronic means to measure chain speed just prior to
protective clothing (or foot protective device) and the speed of contact with test specimen and after contact is initiated.
the saw chain. For lower chain speeds, the probability of
5. Significance and Use
cut-throughapproacheszero,whileforhigherchainspeeds,the
probability of cut-through approaches one. 5.1 The purpose of this test method is to provide a measur-
able criterion of performance defining the level of cut resis-
3.1.5 chain stop, n—for chainsaw cut resistance, the result-
tance to the cutting action of a saw chain provided by foot
ing action when a material clogs (jams) the drive sprocket or
protective devices.
slows the speed sufficiently to prevent advancement of the saw
chain.
5.2 The protection which can be demonstrated by the foot
protective devices tested in accordance with this test method is
3.1.6 cut resistance, n—the ability of a material, while in
achieved by: (1) the material resisting cutting when put in
contact with the linked cutters, to resist cut-through of the
contact with the moving saw chain; (2) a part of the material
cutters of a moving saw chain, independent of either jamming
being drawn into the saw chain and drive mechanism to block
or chain stop.
thesawchainmovement;(3)thematerialsresistingcuttingand
3.1.7 foot, n—the terminal part of the vertebrate leg, includ-
absorbing rotational energy so that saw chain speed can be
ing the ankle, upon which an individual stands.
slowed down sufficiently to stop the movement of the saw
3.1.8 foot protective device, n—for chainsaw cut resistance,
chain; or (4) any combination of these.
an article of personal equipment which covers the foot and
5.3 In case of a dispute arising from differences in reported
ankle for the purpose of providing limited protection from
test results, when using this test method for acceptance testing
injury due to contact with a moving saw chain.
of commercial shipments, the purchaser and the supplier
3.1.9 footwear, n—a boot or shoe of any construction.
should perform comparative tests to determine if there is a
3.1.10 gaiter, n—for chainsaw cut resistance, a foot protec-
statistical bias between their laboratories. Competent statistical
tivedevicepermanentlyattachedtotheoutsideofthefootwear.
assistance is recommended for the investigation of bias. As a
minimum, the two parties should take a group of test speci-
3.1.11 jamming, n—for chainsaw cut resistance, the clog-
mensfromthesamelotofcomponentstobeevaluated.Thetest
ging action manifested by a protective garment or device that
specimens should then be randomly assigned in equal numbers
can produce a chain stop.
to each laboratory for testing. If a bias is found, either its cause
3.1.12 sawchain,n—aclosedloopofcutterslinkedtogether
must be determined and corrected, or the purchaser and the
for use in a portable power-operated tool.
supplier must agree to interpret future test results in light of the
3.1.13 toe area cut zone, n—in the testing of foot protective
known bias.
devices, that area excluding the sole that extends from the
frontmost part of the footwear to a vertical plane
6. Apparatus
15 6 0.25 mm behind the toe box; or in the absence of a toe
6.1 Specimen Holder for Calibration, in accordance with
box, the area that extends to a vertical plane 65 6 6.25 mm
Test Method F1414.
from the front of the footwear.
6.2 Mounting Bracket for Footwear and Footwear with
3.1.14 toe box, n—in testing of foot protective devices, a
Protective Devices:
component inserted into the toe area of footwear.
6.2.1 The mounting bracket must enable the footwear to be
3.1.15 upper, n—that area of the footwear above the sole.
moved so that test cuts can be made at stipulated positions (see
Figs. 1-4).
3.1.16 upper cut zone, n—in the testing of foot protective
devices, the area starting at the top of the area of protection on 6.2.2 The mounting bracket shall enable footwear to be
secured for testing in a manner that neither enhances nor
the footwear and extending downward to include the entire
upper, but excluding the toe area cut zone. inhibits the cut resistance of the foot protective device.
3.2 Fordefinitionsofotherprotectiveclothingtermsusedin NOTE 2—Securing or mounting mechanisms should enable footwear, if
necessary, to be used for multiple evaluations of protective devices.
this test method, refer to Terminology F1494.
6.3 Footwear Form for Mounting Removable Foot Protec-
4. Summary of Test Method
6,7
tive Device:
4.1 Test specimens are securely mounted on a test appara-
6.3.1 The footwear form used for mounting a removable
tus.
foot protective device shall be similar to that shown in Fig. 5.
4.2 Achainsaw, of specific characteristic and operating at a
designatedspeed,isbroughtintocontactwiththetestspecimen
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,
at specified locations.
England.
4.2.1 Thecuttingactionofthesawchainwillachieveoneof
If you are aware of alternative suppliers, please provide this information to
three results: (1) complete cut-through, (2) no cut-through
ASTM International Headquarters. Your comments will receive careful consider-
while saw chain continues to run, or (3) complete chain stop. ation at a meeting of the responsible technical committee, which you may attend.
F1458 − 15 (2022)
FIG. 1 Upper Cut Test Position
FIG. 3 Toe Cut Test Position
FIG. 2 Upper Test Cut Position
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
device to footwear.
6.3.3 The form shall then be secured for testing to the
aforementioned mounting bracket in a manner that neither
FIG. 4 Toe Cut Test Position
enhances nor inhibits the cut resistance of the foot protective
device.
8,7
6.7 Filling Material:
6.4 Chainsaw and Related Equipment—The chainsaw and
6.7.1 The filling material used to provide shape and mass to
related equipment is in accordance with Test Method F1414.
the footwear shall be pellets made of a high-density polyeth-
6.5 Chainsaw Support Bracket—The chainsaw support
ylene similar to that used for injection molding.
bracket is in accordance with Test Method F1414.
6.6 Interfaced Data Acquisition System—The interfaced
The sole source of supply of the Style No. LM-6007-00 polyethylene pellets
data acquisition system is in accordance with Test Method
known to the committee at this time is Quantum Chemical Corp., 11500 N. Lake
F1414. Drive, Cincinnati, OH 45249.
F1458 − 15 (2022)
7.5 The chainsaw engine should be vented to prevent
potential danger posed by carbon monoxide.
8. Sampling
8.1 Lot Sample—The number of units that constitute a
production lot and the number of samples required to be
evaluated from that lot will be determined by agreement
between the client and the facility using this test method. This
determination must also consider how many units constitute a
meaningful measurement of consistent quality that will result
in achievement of similar values.
8.2 Number of Specimens:
8.2.1 A pair is considered as two test specimens, one
left-foot protective device and one right-foot protective device.
8.2.2 If this test method is used to determine CS50 a
minimum of six specimens (three 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, a
minimum of six specimens (three 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 (three
pairs) at each test cut position will be needed.
9. Calibration
9.1 The calibration procedures described in Test Method
F1414 shall be utilized for this test method.
FIG. 5 Footwear Form for Gaiter/Liner
10. Conditioning
10.1 Footwear:
6.7.1.1 This includes footwear with chainsaw cut protection
10.1.1 Place the footwear in a room with an ambient
which is an integral part of the footwear, as well as the
conditionof70 6 10 °F(21 6 6 °C)andarelativehumidityof
footwear that is worn on the inside of a removable foot
50 6 15 %.
protective device.
10.1.2 Footwear shall be conditioned in this manner for at
6.7.2 The filling material shall be held in place by covering
least 24 h.
with a weight of 2 kg 6 20 g.
10.2 Foot Protective Devices Permanently Attached:
NOTE 3—The weight can be a bag containing leadshot, sand, steel
10.2.1 Textile Materials—Condition textile foot protective
pellets, or some other material to achieve the desired mass.
devices that are permanently attached to the footwear in the
same manner as footwear.
7. Hazards
10.2.2 Non-Textile Materials—Condition non-textile foot
NOTE 4—Warning: The chainsaw equipment used in the procedure of
protective devices that are permanently attached to the foot-
this test method can pose a potential danger to the technician if specific
wear in the same manner as footwear.
safety precautions are not followed.
10.3 Foot Protective Devices Not Permanently Attached:
7.1 As a minimum safety precaution, it is suggested that the
10.3.1 Textile Materials—Condition textile foot protective
spark plug wire be disengaged until the engine needs to be
devicesthatarenotpermanentlyattachedtothefootwearinthe
started.
same manner as footwear.
7.2 As a further safety precaution, it is suggested that the
10.3.2 Non-Textile Materials—Condition non-textile foot
sparkplugwirebegroundedbycircuitryaftercuttingthelower
protective devices that are not permanently attached to the
wireofthedatacollectionsystem.Ifthesawchainstopsbefore
footwear in the same manner as footwear.
the wire is cut, or if the saw chain slides over the specimen, a
timershouldlimitthetestandstoptheenginebygroundingthe
...
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