1、Designation: D3296 14D3296 14aStandard 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 parenth
2、eses indicates 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 extrusion resinsmade from the copolymer of tetr
3、afluoroethylene and hexafluoropropylene (FEP-fluorocarbon). This specification is for virginmaterial only and does not address recycled material as 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
4、.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 The following safety hazards caveat pertains only to the test methods portion, Section 8, of this specification: This standarddoes not purport to address all of the saf
5、ety concerns, if any, associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric B
6、reakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials atCommercial Power FrequenciesD618 Practice for Conditioning Plastics for TestingD792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by DisplacementD883 Terminology Relating to PlasticsD16
7、00 Terminology for Abbreviated Terms Relating to PlasticsD1675 Test Methods for Polytetrafluoroethylene TubingD2116 Specification for FEP-Fluorocarbon Molding and Extrusion MaterialsIEEE/ASTM SI 10 American National Standard for Use of the International System of Units (SI): The Modern Metric System
8、3. Terminology3.1 DefinitionsDefinitions of terms used in this specification 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 or more production runs.4. Classification4.1 This specification provides
9、 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 (see Note 2).4.1.3 Type IIITubing of all other sizes, as agreed by buyer and seller. This type
10、 shall conform to the Dimensional Tolerancesfor FEP Tubing, as listed inTable 3.4.2 The types are further differentiated in accordance with increasing wall thicknesses as follows:4.2.1 Class ATubing having walls tabulated in Table 1 listed as light-weight wall.4.2.2 Class CTubing having walls tabula
11、ted in Table 1 listed as standard wall (see Note 3).1 This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials(Section 20.15.12).Current edition approved March 1, 2014Aug. 1, 2014. Published Marc
12、h 2014September 2014. Originally approved in 1974. Last previous edition approved in 20082014as D3296 - 03D3296 - 14.(2008). DOI: 10.1520/D3296-14.10.1520/D3296-14A.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. ForAnnual Book
13、 ofASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technica
14、lly possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this sta
15、ndardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.2.3 Class DTubing having walls tabulated in Table 2 listed as chemical tubing.4.2.4 Class ETubing having walls listed as heavy or conforming to the Dimensional Tolerances for FEP
16、Tubing as listed inTable 3.NOTE 3Tubing having electrical internal diameters and wall thickness dimensions 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 this specification. The system uses predefi
17、ned cells to refer to specificaspects of this specification, as illustrated as follows:TABLE 1 Dimensions and Tolerances for Type I FEP-Fluorocarbon TubingDimensions, mm (in.)AWG Size Inside DiameterWall ThicknessClass A Class CLightweight Wall Standard Wallmin max nom min max nom min max24 0.51 (0.
18、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 (0.032) 1.02 (0.040) 0.152 (0.006) 0.102 (0.004) 0.203 (0.008) 0.406 (0.016) 0.
19、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) 0.330 (0.013) 0.483 (0.019)17 1.14 (0.045) 1.37 (0.054) 0.152 (0.006) 0.102 (0
20、.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 (0.004) 0.203 (0.008) 0.406 (0.016) 0.330 (0.013) 0.483 (0.019)14 1.63 (0.064)
21、 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) 2.31 (0.091) 0.203 (0.008) 0.152 (0.006) 0.254 (0.010) 0.406 (0.016) 0.330
22、(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 (0.013) 0.483 (0.019)9 2.90 (0.114) 3.15 (0.124) 0.203 (0.008) 0.152 (0.006)
23、 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) 0.254 (0.010) 0.508 (0.020) 0.406 (0.016) 0.610 (0.024)6 4.12 (0.162) 4.52 (0
24、.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 (0.224) 0.254 (0.010) 0.178 (0.007) 0.330 (0.013) 0.508 (0.020) 0.406 (0.016) 0.
25、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) 0.610 (0.024)1 7.34 (0.289) 7.90 (0.311) 0.254 (0.010) 0.178 (0.007) 0.330 (0.01
26、3) 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 TubingDimensions, mm (in.)ID Size FractionsClass D Class DInside Diameter Wall Dim
27、ensionsnom 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 (0.099) 2.26 (0.089) 0.76 (0.030) 0.127 (0.005)3.18 (18) 3.18 (0.125) 3.30 (0.13
28、0) 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 (0.320) 7.72 (0.304) 0.76 (0.030) 0.127 (0.005)9.52 (38) 9.52 (0.375) 9.73 (0.
29、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 (0.563) 14.58 (0.574) 14.02 (0.552) 0.76 (0.030) 0.152 (0.006)15.88 (58) 15.88
30、(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)22.23 (78) 22.23 (0.875) 22.63 (0.891) 21.82 (0.859) 1.14 (0.045) 0.178 (0.007
31、)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) 0.203 (0.008)50.80 (2) 50.80 (2.000) 51.44 (2.025) 50.17 (1.975) 1.27 (0.0
32、50) 0.203 (0.008)D3296 14a2SpecificationStandardNumberBlock:Type :Class :SpecialNotes: : : :Example: SpecificationD3296 14,I AFor this example, the line callout would be Specification D3296 14, IA, and would specify form of FEP-Fluoroethylenepropylene that has all of the properties listed for that t
33、ype, grade, and class in the appropriate specified properties or tables,or both, in the specification identified. A comma is used as the separator between the standard number and the type. Separatorsare not needed between the type, grade, and class.3 Provision for special notes are included so that
34、other information can beprovided when required.An example would be in Specification D3296 14 where dimensions and tolerances are specified for eachAWG size within type and class. When special notes are used, a comma should precede them.5. Physical Requirements5.1 The tubing shall be made of FEP-fluo
35、rocarbon meeting the requirements of Specification D2116.5.2 The inside diameter and wall thickness and tolerances of the 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 2.12 and 2.19 inclusive when
36、determined in accordance with 8.1.4.5.4 The tubing shall have a minimum tensile strength of 10.3 MPa (1500 psi) and a minimum elongation of 250 % whendetermined in accordance with 8.1.5.5.5 The tubing shall have a minimum dielectric breakdown as shown in Table 4 when determined in accordance with 8.
37、1.6.5.6 The tubing shall remain free from cracks and exhibit no splitting when tested for heat resistance in accordance with 8.1.8.6. Sampling6.1 Sampling shall be statistically adequate to satisfy the requirements of Section 9.7. Number of Tests and Retests7.1 One set of test specimens shall be con
38、sidered sufficient for testing each batch. The average result of the specimens testedshall conform to the requirements of this specification.8. Test Methods8.1 The properties enumerated in this specification shall be determined in accordance with the following methods.8.1.1 ConditioningConditioning
39、is not required except in referee cases. When conditioning is required, condition the testspecimens at 23C for a period of at least 4 h prior to test. If the test material has been exposed to temperatures below 20C within24 h prior to test, the conditioning shall be for at least 24 h and as outlined
40、 in Practice D618.8.1.2 Test ConditionsConduct tests at the standard laboratory temperature of 23 6 2C (73.4 6 3.6F). The maintenance ofconstant humidity is not necessary; in referee cases the standard laboratory atmosphere including 50 6 5 % 50 6 10 % relativehumidity shall apply.8.1.3 Dimensions a
41、nd Tolerances:3 See the ASTM Form and Style Manual. Available from ASTM Headquarters.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 Thi
42、ckness 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)0.79
43、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 and (1.
44、000 and ) 0.38 (0.015)D3296 14a38.1.3.1 Inside DiameterDetermine the inside diameter in accordance with Method D1675, except that no individualmeasurements shall be allowed to exceed the tolerances specified in Table 1,Table 2, or Table 3.8.1.3.2 Wall ThicknessDetermine the wall thickness in accorda
45、nce with the procedures described in Method D1675, exceptthat no individual measurements shall be allowed to exceed the tolerances specified in Table 1,Table 2, or Table 3.8.1.4 Specific GravityDetermine the specific gravity in accordance with Method A of Test Methods D792. Add 2 drops ofwetting age
46、nt (liquid detergent) to the water in order to reduce the surface tension and ensure complete wetting of the specimen.8.1.5 Tensile Strength and ElongationDetermine the tensile strength and elongation as specified in 8.1.5.1 through 8.1.5.3,using a testing speed of 50.8 mm (2 in.)/min. Average the t
47、est results for the longitudinal and the transverse specimens separately.Discard specimens that break in the jaws of the 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 and elongation inboth the longitudinal an
48、d transverse directions in accordance with Specification D2116.8.1.5.2 Tubing Having an Inside Diameter less than 15.9 mm (0.625 in.) to 2.3 mm (0.090 in.) InclusiveDetermine the tensilestrength and elongation in the longitudinal direction in accordance with Specification D2116. For longitudinal spe
49、cimens, slit thetubing parallel to the axis and flatten 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 nonsliptype loopknots in each end of the specimen so that there are 34.9 mm 34.9 mm (138 in.) between the knot of the loops (see Fig. 1). Placeloops over the drum of a standard wire specimen holder in the tension-testing machine and pull in this position.8.1.6 Dielectric Breakdown Vo
