1、Designation: D3296 14Standard Specification forFEP-Fluorocarbon Tube1This standard is issued under the fixed designation D3296; 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 indi
2、cates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 The tubing is intended for electrical, mechanical,chemical, and medical applications manufactured from extru-sion resins made from the copolymer of tetrafluoroe
3、thylene 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 D1600.NOTE 2There is no known ISO eqivalent to this standard.1.2 The v
4、alues stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.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,
5、if any, associated 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:2D149 Test Method for Dielectric Breakdown Volta
6、ge andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD618 Practice for Conditioning Plastics for TestingD792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD883 Terminology Relating to PlasticsD1600 Terminology
7、 forAbbreviated Terms Relating to Plas-ticsD1675 Test Methods for Polytetrafluoroethylene TubingD2116 Specification for FEP-Fluorocarbon Molding andExtrusion MaterialsIEEE/ASTM SI 10 American National Standard for Use ofthe International System of Units (SI): The Modern MetricSystem3. Terminology3.1
8、 DefinitionsDefinitions of terms used in this specifica-tion shall be in accordance with Terminology D883.3.2 Definitions of Terms Specific to This Standard:3.2.1 lot, none production run or uniform blend of two ormore production runs.4. Classification4.1 This specification provides for three types
9、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 IIITubing of all other sizes, as agreed by buyerand seller. This type shall conform to th
10、e Dimensional Toler-ances for FEP Tubing, as listed inTable 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 1listed as light-weight wall.4.2.2 Class CTubing having walls tabulated in Table 1listed
11、 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 Tubing aslisted in Table 3.NOTE 3Tubing having electrical internal diameters and wall thic
12、knessdimensions were deleted because of lack of demand.NOTE 4Class B has been deleted because of lack of demand.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:1This
13、 specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials (Section 20.15.12).Current edition approved March 1, 2014. Published March 2014. Originallyapproved in 1974. Last previous edition approved in 2
14、008 as D3296 - 03(2008).DOI: 10.1520/D3296-14.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.*A Summary of C
15、hanges section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1TABLE 1 Dimensions and Tolerances for Type I FEP-Fluorocarbon TubingDimensions, mm (in.)AWG SizeInside DiameterWall ThicknessClass A Cla
16、ss 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 (0.014)22 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 (0.014)20 0.81 (0.
17、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 (0.019)19 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 (0.019)18 1.02 (0.040) 1.25 (0.049) 0.152 (0.006) 0.102 (0.004) 0.203 (0.008) 0.406 (0.016) 0.
18、330 (0.013) 0.483 (0.019)17 1.14 (0.045) 1.37 (0.054) 0.152 (0.006) 0.102 (0.004) 0.203 (0.008) 0.406 (0.016) 0.330 (0.013) 0.483 (0.019)16 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 (0.019)15 1.45 (0.057) 1.70 (0.067) 0.152 (0.006) 0.102 (0
19、.004) 0.203 (0.008) 0.406 (0.016) 0.330 (0.013) 0.483 (0.019)14 1.63 (0.064) 1.88 (0.074) 0.203 (0.008) 0.152 (0.006) 0.254 (0.010) 0.406 (0.016) 0.330 (0.013) 0.483 (0.019)13 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 (0.019)12 2.06 (0.081)
20、 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 (0.019)11 2.31 (0.091) 2.57 (0.101) 0.203 (0.008) 0.152 (0.006) 0.254 (0.010) 0.406 (0.016) 0.330 (0.013) 0.483 (0.019)10 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
21、(0.013) 0.483 (0.019)9 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 (0.024)8 3.28 (0.129) 3.58 (0.141) 0.203 (0.008) 0.152 (0.006) 0.254 (0.010) 0.508 (0.020) 0.406 (0.016) 0.610 (0.024)7 3.66 (0.144) 4.01 (0.158) 0.203 (0.008) 0.152 (0.006) 0
22、.254 (0.010) 0.508 (0.020) 0.406 (0.016) 0.610 (0.024)6 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 (0.024)5 4.62 (0.182) 5.03 (0.198) 0.254 (0.010) 0.178 (0.007) 0.330 (0.013) 0.508 (0.020) 0.406 (0.016) 0.610 (0.024)4 5.18 (0.204) 5.69 (0.2
23、24) 0.254 (0.010) 0.178 (0.007) 0.330 (0.013) 0.508 (0.020) 0.406 (0.016) 0.610 (0.024)3 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 (0.024)2 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) 0.61
24、0 (0.024)1 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 (0.024)0 8.26 (0.325) 8.81 (0.347) 0.305 (0.012) 0.229 (0.009) 0.381 (0.015) 0.508 (0.020) 0.406 (0.016) 0.610 (0.024)TABLE 2 Dimensions and Tolerances for Type II FEP-Fluorocarbon Tubing
25、Dimensions, mm (in.)ID Size FractionsClass 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) 0.076 (0.003)1.59 (116) 1.59 (0.062) 1.70 (0.067) 1.45 (0.057) 0.76 (0.030) 0.127 (0.005)2.38 (332) 2.38 (0.094) 2.51 (0.0
26、99) 2.26 (0.089) 0.76 (0.030) 0.127 (0.005)3.18 (18) 3.18 (0.125) 3.30 (0.130) 3.05 (0.120) 0.76 (0.030) 0.127 (0.005)4.76 (316) 4.76 (0.188) 4.90 (0.193) 4.65 (0.183) 0.76 (0.030) 0.127 (0.005)6.35 (14) 6.35 (0.250) 6.53 (0.257) 6.17 (0.243) 0.76 (0.030) 0.127 (0.005)7.94 (516) 7.94 (0.312) 8.13 (0
27、.320) 7.72 (0.304) 0.76 (0.030) 0.127 (0.005)9.52 (38) 9.52 (0.375) 9.73 (0.383) 9.32 (0.367) 0.76 (0.030) 0.127 (0.005)11.11 (716) 11.11 (0.438) 11.38 (0.448) 10.87 (0.428) 0.76 (0.030) 0.152 (0.006)12.70 (12) 12.70 (0.500) 12.95 (0.510) 12.45 (0.490) 0.76 (0.030) 0.152 (0.006)14.29 (916) 14.29 (0.
28、563) 14.58 (0.574) 14.02 (0.552) 0.76 (0.030) 0.152 (0.006)15.88 (58) 15.88 (0.625) 16.18 (0.637) 15.57 (0.613) 0.76 (0.030) 0.152 (0.006)17.46 (1116) 17.46 (0.688) 17.78 (0.700) 17.17 (0.676) 0.81 (0.032) 0.152 (0.006)19.05 (34) 19.05 (0.750) 19.41 (0.764) 18.69 (0.736) 1.02 (0.040) 0.178 (0.007)22
29、.23 (78) 22.23 (0.875) 22.63 (0.891) 21.82 (0.859) 1.14 (0.045) 0.178 (0.007)25.40 (1) 25.40 (1.000) 25.91 (1.020) 24.89 (0.980) 1.27 (0.050) 0.203 (0.008)31.75 (114) 31.75 (1.250) 32.26 (1.270) 31.24 (1.230) 1.27 (0.050) 0.203 (0.008)38.10 (112) 38.10 (1.500) 38.74 (1.525) 37.47 (1.475) 1.27 (0.050
30、) 0.203 (0.008)50.80 (2) 50.80 (2.000) 51.44 (2.025) 50.17 (1.975) 1.27 (0.050) 0.203 (0.008)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.)Nomin
31、al Thickness mm (in.)Thickness Tolerancemm (in.)0 to 0.25 (0.000 to 0.010) 0.03 (0.001) 0 to 0.13 (0.000 to 0.005) 0.025 (0.001)0.28 to 0.51 (0.011 to 0.020) 0.05 (0.002) 0.15 to 0.31 (0.006 to 0.012) 0.051 (0.002)0.53 to 0.76 (0.021 to 0.030) 0.08 (0.003) 0.33 to 0.48 (0.013 to 0.019) 0.076 (0.003)
32、0.79 to 2.54 (0.031 to 0.100) 0.10 (0.004) 0.51 to 0.74 (0.020 to 0.029) 0.102 (0.004)2.57 to 4.32 (0.101 to 0.170) 0.13 (0.005) 0.76 and (0.030 and ) 0.127 (0.005)4.34 to 6.35 (0.171 to 0.250) 0.15 (0.006)6.38 to 19.05 (0.251 to 0.750) 0.18 (0.007)19.08 to 25.38 (0.751 to 0.999) 0.25 (0.010)25.4 an
33、d (1.000 and ) 0.38 (0.015)D3296 142SpecificationStandardNumberBlock:Type :Class :SpecialNotes:Example:SpecificationD3296 14,IAFor this example, the line callout would be SpecificationD3296 14, IA, and would specify form of FEP-Fluoroethylenepropylene that has all of the properties listed for thatty
34、pe, grade, and class in the appropriate specified properties ortables, or both, in the specification 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 oth
35、er informa-tion can be provided when required. An example would be inSpecification D3296 14 where dimensions and tolerances arespecified for each AWG size within type and class. Whenspecial notes are used, a comma should precede them.5. Physical Requirements5.1 The tubing shall be made of FEP-fluoro
36、carbon meetingthe requirements of Specification D2116.5.2 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 deter
37、mined in accordance with 8.1.4.5.4 The tubing shall have a minimum tensile strength of10.3 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
38、 The tubing shall remain free from cracks and exhibit 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 su
39、fficientfor testing each batch. The average result of 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 requi
40、red except inreferee cases. When conditioning is required, 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 D6
41、18.8.1.2 Test ConditionsConduct tests at the standard 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
42、 Inside DiameterDetermine the inside diameter inaccordance with Method D1675, except that no individualmeasurements shall be allowed to exceed the tolerancesspecified in Table 1,Table 2,orTable 3.8.1.3.2 Wall ThicknessDetermine the wall thickness inaccordance with the procedures described in Method
43、D1675,except that no individual measurements shall be allowed toexceed the tolerances specified in Table 1,Table 2,orTable 3.8.1.4 Specific GravityDetermine the specific gravity inaccordance with MethodAof Test Methods D792.Add 2 dropsof wetting agent (liquid detergent) to the water in order toreduc
44、e the surface tension and ensure complete wetting of thespecimen.8.1.5 Tensile Strength and ElongationDetermine the ten-sile strength and elongation as specified in 8.1.5.1 through8.1.5.3, using a testing speed of 50.8 mm (2 in.)/min. Averagethe test results for the longitudinal and the transverse s
45、peci-mens separately. Discard specimens that break in the jaws ofthe tension tester, and make new tests.8.1.5.1 Tubing Having an Inside Diameter of 15.9 mm(0.625 in.) and OverDetermine the tensile strength andelongation in both the longitudinal and transverse directions inaccordance with Specificati
46、on D2116.8.1.5.2 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 D2116. For longitudinalspecimens, slit the tubing parallel to the axis and flatten
47、out,prior to punching out specimens.8.1.5.3 Tubing Having an Inside Diameter less than 2.3 mm(0.090 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 sta
48、ndard wire specimen holder in thetension-testing machine and pull in this position.8.1.6 Dielectric Breakdown VoltageDetermine the dielec-tric breakdown voltage of the tubing in accordance with TestMethods D149.3See the ASTM Form and Style Manual. Available from ASTM Headquarters.TABLE 4 Minimum Die
49、lectric Breakdown for FEP-FluorocarbonPlastic TubingNominal Wall ThicknessDielectric BreakdownVolts min, Vmm in.0.152 to 0.175 0.006 to 0.0069 90000.178 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 6000.381 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 000D3296 1438.1.6.1 Tubing having a nominal diameter less than 4.80mm (0.189 in.), u
