1、Designation: D 3296 03Standard Specification forFEP-Fluorocarbon Tube1This standard is issued under the fixed designation D 3296; 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 in
2、dicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 The tubing is intended for electrical, mechanical, chemi-cal, and medical applications manufactured from extrusionresins made from the copolymer of tetrafluo
3、roethylene andhexafluoropropylene (FEP-fluorocarbon). This specification isfor virgin material only and does not address recycled materialas it is not appropriate for FEP tubing.NOTE 1Abbreviations are in accordance with Terminology D 1600.NOTE 2There is no similar ISO standard.1.2 The values stated
4、 in SI units are to be regarded as thestandard. The values given in brackets are for information only.1.3 The following safety hazards caveat pertains only to thetest methods portion, Section ,8 of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associ
5、ated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2D 149 Test Method for Dielectric Breakdown Voltage andDielect
6、ric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD 618 Practice for Conditioning Plastics for TestingD 792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD 883 Terminology Relating to PlasticsD 1600 Terminology for Abbr
7、eviated Terms Relating toPlasticsD 1675 Test Method for PolytetrafluoroethyleneD 2116 Specification for FEP-Fluorocarbon Molding andExtrusion MaterialsD 4894 Specification for Polytetrafluoroethylene (PTFE)Granular Molding and Ram Extrusion MaterialsIEEE/ASTM SI 10 American National Standard for Use
8、 ofthe International System of Units (SI): The Modern MetricSystem3. Terminology3.1 DefinitionsDefinitions of terms used in this specifica-tion shall be in accordance with Terminology D 883.3.2 Definitions of Terms Specific to This Standard:3.2.1 lot, none production run or uniform blend of two ormo
9、re production runs.4. Classification4.1 This specification provides for three types of FEP-fluorocarbon tubing differentiated by size schedules as follows:4.1.1 Type ITubing based upon the American Wire Gage(AWG) sizes.4.1.2 Type IITubing based upon fractional inch sizes (seeNote 2).4.1.3 Type IIITu
10、bing of all other sizes, as agreed by buyerand seller. This type shall conform to the Dimensional Toler-ances for FEP Tubing, as listed in Table 3.4.2 The types are further differentiated in accordance withincreasing wall thicknesses as follows:4.2.1 Class ATubing having walls tabulated in Table 1li
11、sted as light-weight wall.4.2.2 Class CTubing having walls tabulated in Table 1listed as standard wall (see Note 3).4.2.3 Class DTubing having walls tabulated in Table 2listed as chemical tubing.4.2.4 Class ETubing having walls listed as heavy orconforming to the Dimensional Tolerances for FEP Tubin
12、g aslisted in Table 3.NOTE 3Tubing having electrical internal diameters and wall thicknessdimensions were deleted because of lack of demand.NOTE 4Class B has been deleted because of lack of demand.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct respon
13、sibility of Subcommittee D20.15 on ThermoplasticMaterials (Section 20.15.12).Current edition approved November 1, 2003. Published January 2004. Originallyapproved in 1974. Last previous edition approved in 1998 as D 3296 - 98.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orco
14、ntact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, We
15、st Conshohocken, PA 19428-2959, United States.4.3 A one-line system is used to specify materials in thisspecification. The system uses predefined cells to refer tospecific aspects of this specification, as illustrated as follows:SpecificationStandardNumberBlock:Type :Class :SpecialNotes:Example: Spe
16、cifica-tion D 3296 98,IAFor this example, the line callout would be Specification D3296 03, IA, and would specify form of FEP-Fluoro ethyl-enepropylene that has all of the properties listed for that type,grade, and class in the appropriate specified properties ortables, or both, in the specification
17、 identified. A comma is usedas the separator between the standard number and the type.Separators are not needed between the type, grade, and class.3Provision for special notes are included so that other informa-tion can be provided when required. An example would be inSpecification D 3296 03 where d
18、imensions and tolerances arespecified for each AWG size within type and class. Whenspecial notes are used, a comma should precede them.3See the ASTM Form and Style Manual. Available from ASTM Headquarters.TABLE 1 Dimensions and Tolerances for Type I FEP-Fluorocarbon TubingDimensions, mm in.AWG SizeI
19、nside DiameterWall ThicknessClass A Class CLightweight Wall Standard Wallmin max nom min max nom min max24 0.51 0.020 0.69 0.027 0.152 0.006 0.102 0.004 0.203 0.008 0.305 0.012 0.254 0.010 0.356 0.01422 0.64 0.025 0.81 0.032 0.152 0.006 0.102 0.004 0.203 0.008 0.305 0.012 0.254 0.010 0.356 0.01420 0
20、.81 0.032 1.02 0.040 0.152 0.006 0.102 0.004 0.203 0.008 0.406 0.016 0.330 0.013 0.483 0.01919 0.91 0.036 1.12 0.044 0.152 0.006 0.102 0.004 0.203 0.008 0.406 0.016 0.330 0.013 0.483 0.01918 1.01 0.040 1.25 0.049 0.152 0.006 0.102 0.004 0.203 0.008 0.406 0.016 0.330 0.013 0.483 0.01917 1.14 0.045 1.
21、37 0.054 0.152 0.006 0.102 0.004 0.203 0.008 0.406 0.016 0.330 0.013 0.483 0.01916 1.30 0.051 1.55 0.061 0.152 0.006 0.102 0.004 0.203 0.008 0.406 0.016 0.330 0.013 0.483 0.01915 1.45 0.057 1.70 0.067 0.152 0.006 0.102 0.004 0.203 0.008 0.406 0.016 0.330 0.013 0.483 0.01914 1.63 0.064 1.88 0.074 0.2
22、03 0.008 0.152 0.006 0.254 0.010 0.406 0.016 0.330 0.013 0.483 0.01913 1.83 0.072 2.08 0.082 0.203 0.008 0.152 0.006 0.254 0.010 0.406 0.016 0.330 0.013 0.483 0.01912 2.06 0.081 2.31 0.091 0.203 0.008 0.152 0.006 0.254 0.010 0.406 0.016 0.330 0.013 0.483 0.01911 2.31 0.091 2.57 0.101 0.203 0.008 0.1
23、52 0.006 0.254 0.010 0.406 0.016 0.330 0.013 0.483 0.01910 2.59 0.102 2.85 0.112 0.203 0.008 0.152 0.006 0.254 0.010 0.406 0.016 0.330 0.013 0.483 0.0199 2.90 0.114 3.15 0.124 0.203 0.008 0.152 0.006 0.254 0.010 0.508 0.020 0.406 0.016 0.610 0.0248 3.28 0.129 3.58 0.141 0.203 0.008 0.152 0.006 0.254
24、 0.010 0.508 0.020 0.406 0.016 0.610 0.0247 3.66 0.144 4.01 0.158 0.203 0.008 0.152 0.006 0.254 0.010 0.508 0.020 0.406 0.016 0.610 0.0246 4.12 0.162 4.52 0.178 0.254 0.010 0.178 0.007 0.330 0.013 0.508 0.020 0.406 0.016 0.610 0.0245 4.62 0.182 5.03 0.192 0.254 0.010 0.178 0.007 0.330 0.013 0.508 0.
25、020 0.406 0.016 0.610 0.0244 5.18 0.204 5.69 0.224 0.254 0.010 0.178 0.007 0.330 0.013 0.508 0.020 0.406 0.016 0.610 0.0243 5.82 0.229 6.33 0.249 0.254 0.010 0.178 0.007 0.330 0.013 0.508 0.020 0.406 0.016 0.610 0.0242 6.55 0.258 7.06 0.278 0.254 0.010 0.178 0.007 0.330 0.013 0.508 0.020 0.406 0.016
26、 0.610 0.0241 7.34 0.289 7.90 0.311 0.254 0.010 0.178 0.007 0.330 0.013 0.508 0.020 0.406 0.016 0.610 0.0240 8.26 0.325 8.81 0.347 0.254 0.012 0.229 0.007 0.330 0.013 0.508 0.020 0.406 0.016 0.610 0.024TABLE 2 Dimensions and Tolerances for Type II FEP-Fluorocarbon TubingDimensions, mm in.ID Size Fra
27、ctionsClass D Class DInside Diameter Wall Dimensionsnom max min Thickness Tolerances0.79 132 0.79 0.031 0.89 0.035 0.69 0.027 0.41 0.016 60.076 60.0031.59 116 1.59 0.062 1.70 0.067 1.45 0.057 0.76 0.030 60.127 60.0052.38 332 2.38 0.094 2.49 0.098 2.24 0.088 0.76 0.030 60.127 60.0053.18 18 3.18 0.125
28、 3.30 0.130 3.05 0.120 0.76 0.030 60.127 60.0054.76 316 4.76 0.188 4.90 0.193 4.65 0.183 0.76 0.030 60.127 60.0056.35 14 6.35 0.250 6.53 0.257 6.17 0.243 0.76 0.030 60.127 60.0057.94 516 7.94 0.312 8.13 0.320 7.72 0.304 0.76 0.030 60.127 60.0059.52 38 9.52 0.375 9.73 0.383 9.32 0.367 0.76 0.030 60.1
29、27 60.00511.11 716 11.11 0.438 11.38 0.448 10.87 0.428 0.76 0.030 60.152 60.00612.70 12 12.70 0.500 12.95 0.510 12.45 0.490 0.76 0.030 60.152 60.00614.29 916 14.29 0.563 14.53 0.572 14.02 0.552 0.76 0.030 60.152 60.00615.88 58 15.88 0.625 16.18 0.637 15.57 0.613 0.76 0.030 60.152 60.00617.46 1116 17
30、.46 0.688 17.78 0.700 17.17 0.676 0.81 0.032 60.152 60.00619.05 34 19.05 0.750 19.41 0.764 18.69 0.736 1.02 0.040 60.178 60.00722.23 78 22.23 0.875 22.63 0.891 21.82 0.859 1.14 0.045 60.178 60.00725.40 1 25.40 1.000 25.91 1.020 24.89 0.980 1.27 0.050 60.203 60.00831.75 114 31.75 1.250 32.26 1.270 31
31、.24 1.230 1.27 0.050 60.203 60.00838.10 112 38.10 1.500 38.74 1.525 37.47 1.475 1.27 0.050 60.203 60.00850.80 2 50.80 2.000 51.44 2.025 50.17 1.975 1.27 0.050 60.203 60.008D 3296 0325. Physical Requirements5.1 The tubing shall be made of FEP-fluorocarbon meetingthe requirements of Specification D 21
32、16.5.2 The inside diameter and wall thickness and tolerances ofthe tubing shall be as shown in Tables 1-3 when determined inaccordance with 8.1.3.1 and 8.1.3.2.5.3 The specific gravity of the tubing shall be between 2.12and 2.19 inclusive when determined in accordance with 8.1.4.5.4 The tubing shall
33、 have a minimum tensile strength of10.0 MPa 1500 psi and a minimum elongation of 250 %when determined in accordance with 8.1.5.5.5 The tubing shall have a minimum dielectric breakdownas shown in Table 4 when determined in accordance with 8.1.6.5.6 The tubing shall remain free from cracks and exhibit
34、 nosplitting when tested for heat resistance in accordance with8.1.8.6. Sampling6.1 Sampling shall be statistically adequate to satisfy therequirements of Section 9.7. Number of Tests and Retests7.1 One set of test specimens shall be considered sufficientfor testing each batch. The average result of
35、 the specimenstested shall conform to the requirements of this specification.8. Test Methods8.1 The properties enumerated in this specification shall bedetermined in accordance with the following methods.8.1.1 ConditioningConditioning is not required except inreferee cases. When conditioning is requ
36、ired, condition the testspecimens at 23C for a period of at least 4 h prior to test. If thetest material has been exposed to temperatures below 20Cwithin 24 h prior to test, the conditioning shall be for at least24 h and as outlined in Practice D 618.8.1.2 Test ConditionsConduct tests at the standar
37、d labo-ratory temperature of 23 6 2C 73.4 6 3.6F. The mainte-nance of constant humidity is not necessary; in referee casesthe standard laboratory atmosphere including 50 6 5 % rela-tive humidity shall apply.8.1.3 Dimensions and Tolerances:8.1.3.1 Inside DiameterDetermine the inside diameter inaccord
38、ance with Method D 1675, except that no individualmeasurements shall be allowed to exceed the tolerancesspecified in Table 1,Table 2, or Table 3.8.1.3.2 Wall ThicknessDetermine the wall thickness inaccordance with the procedures described in Method D 1675,except that no individual measurements shall
39、 be allowed toexceed the tolerances specified in Table 1,Table 2, or Table 3.8.1.4 Specific GravityDetermine the specific gravity inaccordance with Method A of Test Methods D 792. Add 2drops of wetting agent (liquid detergent) to the water in orderto reduce the surface tension and ensure complete we
40、tting ofthe specimen.8.1.5 Tensile Strength and ElongationDetermine the ten-sile strength and elongation as specified in 8.1.5.1 through8.1.5.3 on five transverse specimens, using a testing speed of50.8 mm 2 in./min. Average the test results for the longitu-dinal and the transverse specimens separat
41、ely. Discard speci-mens that break in the jaws of the tension tester, and make newtests.8.1.5.1 Tubing Having an Inside Diameter of 15.9 mm0.625 in. and OverDetermine the tensile strength andelongation in both the longitudinal and transverse directions inaccordance with Specification D 4894.8.1.5.2
42、Tubing Having an Inside Diameter less than 15.9mm 0.625 in. to 2.3 mm 0.090 in. InclusiveDetermine thetensile strength and elongation in the longitudinal direction inaccordance with Specification D 4894. For longitudinal speci-mens, slit the tubing parallel to the axis and flatten out, prior topunch
43、ing out specimens.8.1.5.3 Tubing Having an Inside Diameter less than 2.3 mm0.090 in.Test specimens as filaments. Make nonsliptypeloop knots in each end of the specimen so that there are 34.9mm 138 in. between the knot of the loops (see Fig. 1). Placeloops over the drum of a standard wire specimen ho
44、lder in thetension-testing machine and pull in this position.TABLE 3 Dimensions and Tolerances for Type III FEP-Fluorocarbon Tubing-Dimensions, mm in.Class E Inside Diameter Class E Wall ThicknessNominal Inside Diameter mm in.Inside Diameter Tolerancemm in.Nominal Thickness mm in.Thickness Tolerance
45、mm in.0 to 0.25 0.000 to 0.010 60.03 0.001 0 to 0.13 0.000 to 0.005 60.030 0.0010.26 to 0.50 0.011 to 0.020 60.05 0.002 0.14 to 0.30 0.006 to 0.012 60.050 0.0020.51 to 0.75 0.021 to 0.030 60.08 0.003 0.31 to 0.48 0.013 to 0.019 60.080 0.0030.76 to 2.54 0.031 to 0.100 60.10 0.004 0.49 to 0.74 0.020 t
46、o 0.029 60.100 0.0042.55 to 4.32 0.101 to 0.170 60.13 0.005 0.75 and 0.030 and 60.130 0.0054.33 to 6.35 0.171 to 0.250 60.15 0.0066.36 to 19.05 0.251 to 0.750 60.18 0.00719.06 to 25.39 0.751 to 0.999 60.25 0.01025.4 and 1.000 and 60.38 0.015TABLE 4 Minimum Dielectric Breakdown for FEP-FluorocarbonPl
47、astic TubingNominal Wall ThicknessDielectric Breakdown Voltsmin, Vmm in.0.152 to 0.173 0.006 to 0.0069 9 0000.178 to 0.226 0.007 to 0.0089 10 0000.229 to 0.252 0.009 to 0.0099 11 5000.254 to 0.302 0.010 to 0.0119 12 5000.305 to 0.379 0.012 to 0.0149 14 6000.380 to 0.404 0.015 to 0.0159 15 0000.406 to 0.506 0.016 to 0.0199 16 300over 0.508 Over 0.020 17 000D 3296 0338.1.6 Dielectric Breakdown VoltageDetermine the dielec-tric br
