1、Designation: F1342/F1342M 05 (Reapproved 2013)1Standard Test Method forProtective Clothing Material Resistance to Puncture1This standard is issued under the fixed designation F1342/F1342M; the number immediately following the designation indicates the yearof original adoption or, in the case of revi
2、sion, 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.1NOTEDesignation editorially updated in December 2013.1. Scope1.1 This test method determines the puncture resis
3、tance of aprotective clothing material specimen by measuring the forcerequired to cause a pointed puncture probe to penetrate throughthe specimen. This test method describes three protocols thatmay be used: Method A, Method B, and Method C.1.1.1 Method A requires the use of Probe A only. The probeus
4、ed for testing shall be recorded in the test report.1.1.1.1 Probe A may be used to measure puncture resistancefor the following types of materials:(1) Elastomeric materials(2) Textiles(3) Coated materials1.1.2 Method B requires the use of Probe B. The probe usedfor testing shall be recorded in the t
5、est report.1.1.2.1 Probe B may be used to measure puncture resistancefor the following types of materials:(1) Textiles(2) Coated materialsNOTE 1Probe B is not suited for measuring the puncture resistance ofunsupported elastomeric materials.1.2 The values stated in SI units are to be regarded as thes
6、tandard. The values in inch-pound units in brackets are forinformation purposes only. The values stated in each systemmay not be exact equivalents; therefore, each system must beused independently of the other, without combining values inany way.1.3 This standard does not purport to address all of t
7、hesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D2582 Test Method for Punc
8、ture-Propagation Tear Resis-tance of Plastic Film and Thin SheetingD3767 Practice for RubberMeasurement of Dimensions3. Terminology3.1 Definitions:3.1.1 protective clothing material, nany element,constituent, or substance from which protective clothing iscomposed or can be made.4. Summary of Test Me
9、thod4.1 A material specimen is placed in a stationary supportassembly that is in turn affixed to the lower arm of a tensiontesting machine.4.2 A pointed puncture probe of set dimensions is mountedto the test fixture and the whole assembly is attached to thecompression cell of the testing machine.4.3
10、 The puncture probe is moved at a constant velocity untilit punctures the material specimen.4.4 The force required to puncture the material specimen ismeasured by the compression cell. The elongation (or deflec-tion) of the specimen prior to puncture is also measured. Thereported puncture resistance
11、 is the average of twelve testreplicates.5. Significance and Use5.1 This test method evaluates puncture resistance of pro-tective clothing materials which may include plastics orelastomeric films, coated fabrics, flexible materials, laminates,or textile materials.5.2 This test method is not intended
12、 to measure punctureresistance of all types of punctures encountered using protec-tive clothing material. This test method involves a procedure1This test method is under the jurisdiction ofASTM Committee F23 on PersonalProtective Clothing and Equipment and is the direct responsibility of Subcommitte
13、eF23.20 on Physical.Current edition approved Dec. 1, 2013. Published December 2013. Originallyapproved in 1991. Last previous edition approved in 2005 as F134205. DOI:10.1520/F1342-05R13.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at servicea
14、stm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1where a puncture probe of specified dimensions is used forpu
15、ncturing specimens.5.3 This test method evaluates puncture resistance of pro-tective clothing materials, specifically for puncture forced onspecimens perpendicular to material surface. There is nosupporting structure under the material specimen.5.4 Evaluation of puncture resistance for snag-type pun
16、ctureshould be performed in accordance with Test Method D2582.6. Apparatus6.1 Thickness Gage, suitable for measuring thickness to thenearest 0.01 mm or the nearest 0.001 in., as specified in TestMethod D3767, shall be used to determine the thickness ofeach protective clothing specimen tested.6.2 Tes
17、ting Machine, shall meet the following criteria:6.2.1 It shall be capable of holding the specimen securelybetween the two clamps and be capable of straining thespecimen with a uniform movement.6.2.2 A machine capable of providing load versus elonga-tion data until point of rupture shall be used.6.2.
18、3 The error of the machine shall not exceed 2 % at anyreading within its loading range.6.2.4 It shall be outfitted with a compression cell. Thetesting machine may be configured with the compression cellon either the lower or upper arm. The compression cell shallhave a range sufficient enough to pene
19、trate the specimen.6.3 Puncture Probes:6.3.1 Probe A, shall be fabricated to meet the dimensionsshown in Fig. 1. The puncture probe shall be fabricated fromstainless steel with a Rockwell Hardness of not less than 35.6.3.2 Probe B, shall be fabricated to meet the dimensionsshown in Fig. 2. The punct
20、ure probe shall be fabricated fromstainless steel with a Rockwell Hardness of not less than 35.6.3.3 Probe C, shall be fabricated to meet the dimensionsshown in Fig. 3. The puncture probe shall be fabricated fromstainless steel with a Rockwell Hardness of not less than 35.6.3.4 See Fig. 4 for cross-
21、section of probe and holder.6.4 Specimen Support Assembly, shall consist of two flatmetal specimen support plates (see Fig. 5) that clamp togetherso the sample specimen is held tightly between them. It shallalso consist of a machine interface plate that can be connectedto the testing machine. There
22、should be enough distance toallow for 25 mm 1 in. of travel of the probe.6.4.1 Each plate shall have one to three chamfered holesmeasuring 6.4 mm 0.25 in. for Probe A and 10 mm 0.39 in.for Probes B and C. For efficiency in testing, three holes spacedat the points for a 60 equilateral triangle may be
23、 used, suchthat each hole is 25 mm 1 in. from the other and from theedge of the specimen plate, as shown in Fig. 5.6.4.2 The two specimen support plates shall be connected tothe testing machine using a machine interface plate.7. Test Specimens7.1 Four to twelve test specimens, of dimensions to thesp
24、ecimen support assembly, shall be prepared. The samplesshould be of a size that will not show puckering or slippage ofsamples during the test. No sample conditioning is required.7.2 Use the specimen support plate as a template to cut testspecimens.8. Procedure8.1 Test Method A, use Probe A:8.1.1 Mea
25、sure the thickness of each specimen at the punc-ture point (prior to puncture) to the nearest 0.01 mm 0.001 in.and record.8.1.2 Mount the material specimen to be tested in thesupport assembly as shown in Fig. 6. Take care that the holesof the specimen support assembly are aligned prior to testing to
26、avoid damaging the probe and plates.8.1.3 Attach the material support assembly to the testapparatus.8.1.4 Position puncture probe on the compression cell of thetest apparatus, as shown in Fig. 6.8.1.5 Set the testing machine in operation, but stop it whenthe probe has been driven through the sample
27、specimen ortraveled a distance of 20 mm 0.79 in. This ensures that noneof the equipment will be damaged. The probe shall have avelocity of 50.8 cm/min 20 in./min under load conditions andthis speed shall be uniform at all times.8.1.6 Record the maximum load registered by the indicatingdevice to the
28、nearest 50 g 0.1 lb for each determination.8.1.7 Record the deflection of the sample to the nearest 5mm 0.2 in. prior to puncture.8.1.8 If the sample specimen has not been penetrated, recordthe maximum load of the load cell capacity. If the force of theload cell is insufficient to penetrate the spec
29、imen, change theload cell and indicate the source of the load cell.8.1.9 Conduct a total of twelve puncture resistance mea-surements.FIG. 1 Cross-Section of Puncture Probe AF1342/F1342M 05 (2013)128.1.10 Microscopically check probes on a regular scheduleor when otherwise deemed necessary, to ensure
30、their geometryhas not changed.8.2 Test Method B, use Probe B:8.2.1 Measure the thickness of each specimen at the punc-ture point (prior to puncture) to the nearest 0.01 mm or 0.001in. and record.8.2.2 Mount the material specimen to be tested in thesupport assembly as shown in Fig. 6. Take care that
31、the holesof the specimen support assembly are aligned prior to testing toavoid damaging the probe and plates.8.2.3 Attach the material support assembly to the testapparatus.8.2.4 Position puncture probe on the compression cell of thetest apparatus, as shown in Fig. 6.8.2.5 Set the testing machine in
32、 operation, but stop it whenthe probe has been driven through the sample specimen ortraveled a distance of 20 mm 0.79 in. This ensures that noneof the equipment will be damaged. The probe shall have avelocity of 50.8 cm/min 20 in./min under load conditions andthis speed shall be uniform at all times
33、.8.2.6 Record the maximum load registered by the indicatingdevice to the nearest 50 g 0.1 lb for each determination.8.2.7 Record the deflection of the sample to the nearest 5mm 0.2 in. prior to puncture.8.2.8 If the sample specimen has not been penetrated, recordthe maximum load of the load cell cap
34、acity.8.2.9 Conduct a total of twelve puncture resistance mea-surements.8.2.10 Microscopically check probes on a regular scheduleor when otherwise deemed necessary, to ensure their geometryhas not changed.8.3 Test Method C, use Probe C:FIG. 2 Cross-Section of Alternate Probe BFIG. 3 Cross-Section of
35、 Alternate Probe CFIG. 4 Cross-Section of Probe and HolderF1342/F1342M 05 (2013)138.3.1 Measure the thickness of each specimen at the punc-ture point (prior to puncture) to the nearest 0.01 mm or 0.001in. and record.8.3.2 Mount the material specimen to be tested in thesupport assembly as shown in Fi
36、g. 6. Take care that the holesof the specimen support assembly are aligned prior to testing toavoid damaging the probe and plates.8.3.3 Attach the material support assembly to the testapparatus.8.3.4 Position puncture probe on the compression cell of thetest apparatus, as shown in Fig. 6.8.3.5 Set t
37、he testing machine in operation, but stop it whenthe probe has been driven through the sample specimen ortraveled a distance of 20 mm 0.79 in. This ensures that noneof the equipment will be damaged. The probe shall have avelocity of 50.8 cm/min 20 in./min under load conditions andthis speed shall be
38、 uniform at all times.8.3.6 Record the maximum load registered by the indicatingdevice to the nearest 50 g 0.1 lb for each determination.8.3.7 Record the deflection of the sample to the nearest 5mm 0.2 in. prior to puncture.8.3.8 If the sample specimen has not been penetrated, recordthe maximum load
39、 of the load cell capacity.8.3.9 Conduct a total of twelve puncture resistance mea-surements.8.3.10 Microscopically check probes on a regular scheduleor when otherwise deemed necessary, to ensure their geometryhas not changed.9. Report9.1 Report the following information:9.1.1 Report the test method
40、 used.9.1.2 Report the probe used.9.1.3 Describe the type of material tested.9.1.4 Record the thickness of each specimen at the puncturepoint (prior to puncture) to the nearest 0.01 mm or 0.001 in.Calculate and report the average thickness.9.1.5 Report the load required for each puncture to theneare
41、st 50 g 0.1 lb in all twelve test replicates. Calculate andreport the average puncture load. Include copies of stress-straincurves with labeling.9.1.6 Report the deflection that occurs for each puncture tothe nearest 5 mm 0.2 in. in all twelve test replicates. Calculateand report the average punctur
42、e deflection.10. Precision and Bias10.1 PrecisionThe precision of this test method is beingdetermined.10.2 BiasSince there is no accepted reference materialsuitable for determining the bias for the procedure in this testmethod for measuring puncture resistance of protective cloth-ing materials, bias
43、 has not been determined.11. Keywords11.1 protective clothing materials; puncture; puncture resis-tanceFIG. 5 Specimen Plate (Two Required)F1342/F1342M 05 (2013)14ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this s
44、tandard. Users of this standard are expressly advised that determination of the validity 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 re
45、viewed 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 therespons
46、ible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West
47、Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).FIG. 6 Side View of Specimen Support AssemblyF1342/F1342M 05 (2013)15
