1、Designation: D3368 14D3368 17Standard Specification forFEP-FluorocarbonFEP Sheet and Film1This standard is issued under the fixed designation D3368; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A numbe
2、r in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification covers unfilled, unpigmented FEP-f
3、luorocarbonFEP resin sheet and film less than 3.175 mm (0.125 in.)thick. Recycled materials are allowed in accordance with 6.2.1.2 The values stated in SI units as detailed in IEEE/ASTM SI 10 are to be regarded as standard and the practices ofIEEE/ASTM SI 10 incorporated herein.1.3 The following saf
4、ety hazards caveat pertains only to the test methods portion, Section 14, of this specification:This standarddoes not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practi
5、ces and determine the applicability of regulatory limitations prior to use.NOTE 1There is no known ISO equivalent to this standard.1.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for th
6、e Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating M
7、aterials atCommercial Power FrequenciesD374 Test Methods for Thickness of Solid Electrical Insulation (Metric) D0374_D0374MD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD792 Test Methods for Density and Specific Gravity (Relative Density) of Pl
8、astics by DisplacementD882 Test Method for Tensile Properties of Thin Plastic SheetingD883 Terminology Relating to PlasticsD2116 Specification for FEP Resin Molding and Extrusion MaterialsD3892 Practice for Packaging/Packing of PlasticsD5740 Guide for Writing Material Standards in the Classification
9、 FormatE691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test MethodIEEE/ASTM SI 10 Standard for Use of the International System of Units (SI)2.2 Other Standard:TAPPI 411 Standard Thickness (Caliper) of Paper and Paper Products33. Terminology3.1 Definitions:3.1.1
10、For definitions of terms used in this specification, see Terminology D883.3.1.2 lot, none production run or a uniform blend of two or more production runs.1 This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Therm
11、oplastic MaterialsD20.15.12 on Fluoropolymers.Current edition approved March 1, 2014Aug. 1, 2017. Published March 2014August 2017. Originally approved in 1975. Last previous edition approved in 2010 asD3368 - 04D3368 - 14.(2010). DOI: 10.1520/D3368-14.2 For referencedASTM standards, visit theASTM we
12、bsite, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from Technical Association of the Pulp and Paper Industry (TAPPI), 15 Technology Parkway South, N
13、orcross, GA 30092, http:/www.tappi.org.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 technically possible to adequately depict all changes accurately, ASTM
14、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 standardCopyright ASTM International, 100 Barr Harbor Drive, PO Bo
15、x C700, West Conshohocken, PA 19428-2959. United States14. Classification4.1 This specification covers four types of FEP-fluorocarbonFEP sheet and film:4.1.1 Type IGeneral purpose.4.1.2 Type IICementable film. Type II materials can be subdivided into two grades:4.1.2.1 Grade 1One side cementable, an
16、d4.1.2.2 Grade 2Two sides cementable.4.1.3 Type IIISpecial film for applications requiring unusual flexural endurance or extreme thermal and chemical service.4.1.4 Type IVFilm for mold release applications.4.2 Aline callout system is used to specify materials in this standard.The system uses predefi
17、ned cells to refer to specific aspectsof this specification, which are illustrated as follows:D3368 172SpecificationStandard NumberBlockType Grade Class SpecialNotes| | | | |Example: Specification D3368 XX, II 1 , 0.051 mm thickFor this example, the line callout would be Specification D3368 XX, II 1
18、, 0.051 mm thick. This callout specifies a film of FEPthat is cementable on one side and that has all of the properties listed for that type and grade in the appropriate specified propertiesor tables, or both, in this specification. Inclusion of a class is provided for in the system, but is not used
19、 in this particularspecification. A comma is used as the separator between the standard number and the type. Separators are not needed between thetype, grade, and class.4 Provision for special notes is included in the system so that other information can be provided whenrequired, in this case, the t
20、hickness of the film. When special notes are used, they shall be preceded by a comma.5. Ordering Information5.1 The sheet and film shall be furnished in the form of sheets or rolls in accordance with good commercial practice. Rolls shallbe wound evenly and tightly on substantial cores suitably restr
21、ained to prevent unwinding.5.2 Dimensions of sheet and film with respect to length, width, and core diameter shall be upon agreement between thepurchaser and the manufacturer. The agreement shall apply also to the maximum number of splices per roll and tolerances forlength and core.5.3 Requests for
22、certification or test results shall be made at the time of order placement.6. Materials and Manufacture6.1 The sheet and film shall be made from FEP-fluorocarbonFEP resin as specified in Specification D2116 without filler orplasticizer.6.2 This specification allows for the use of recycled, reprocess
23、ed, and reworked FEP materials provided the following:6.2.1 The final physical, mechanical, and performance requirements as stated in this specification are met.6.2.2 The toxicological characteristics are essentially unaltered from that of virgin material.7. Other Requirements7.1 The sheet and film
24、shall conform to the physical, mechanical, and performance property requirements specified in Table 1.The nominal thickness of sheet or film and thickness tolerances shall be in accordance with Table 2.7.2 The film and sheet shall be uniform in appearance and shall be sufficiently free of contaminat
25、ion, wrinkles, holes, scratches,and other imperfections so as to be functionally acceptable. The color shall be uniform and be characteristic of unpigmented sheetor film that ranges from clear to translucent and is dependent upon the thickness.7.3 Tolerances for width of rolls shall be 61.6 mm (60.0
26、625 in.) for film or sheet thickness less than 0.508 mm (0.020 in.) and63.2 mm (60.125 in.) for sheet thickness equal to or greater than 0.508 mm.8. Sampling8.1 Sampling shall be statistically adequate to satisfy the requirements of 15.4.9. Number of Tests9.1 One set of test specimens as prescribed
27、in Section 10 shall be considered sufficient for testing each batch. The average resultof the specimens tested shall conform to the requirements of this specification.10. Specimen Preparation10.1 Take test specimens across the width of film excluding areas of wrinkles, folds, gel, and other obvious,
28、 visually determined,imperfections.11. Conditioning11.1 For those tests where conditioning is required and unless otherwise specified in the test method, condition the testspecimens in accordance with Procedure A of Practice D618 for a period of at least 4 h prior to test.12. Apparatus12.1 Heat Seal
29、er,5single heated jaw with silicone rubber pad, temperature range from 150 to 275C (300 to 525F), pressure138 kPa (20 psi), and dwell time 10 s.4 See the ASTM Form and Style Manual. Available from ASTM Headquarters.5 Sentinel Model 12AS or 12-12AS, available from Packaging Industries Group, Inc., 13
30、0 North St., Hyannis, MA 02601, or equivalent, has been found satisfactory forthis purpose.D3368 17312.2 Rod,6 or other means for coating aluminum evenly with adhesive.13. Reagents and Materials13.1 Methyl Ethyl Ketone.13.2 Acrylic Adhesive.713.3 Anodized Aluminum,80.5 mm (0.019 in.) thick. Other sh
31、eet aluminum, either plain or anodized, should be satisfactory ifit can be shown that the peel failure of the seal is between the treated film surface and the adhesive, and not between the adhesiveand the aluminum.6 No. 24 “Draw Down” rod, available from R. D. Specialities, Inc., P.O. Box 206, Webst
32、er, NY 14580, has been found satisfactory for this purpose.7 No. 68040 acrylic adhesive available from E. I. DuPont de Nemours “Joy” detergent, Proctor and Gamble, Inc.; and “Triton” X-100, Rohm and Haas Co.FIG. 1 Test Specimen and DieD3368 1750.875 = factor when d is in inches.14.4 Dielectric Stren
33、gthDetermine the dielectric strength in accordance withTest Methods D149, using the short-time test anda 6.35-mm (14-in.) brass electrode with a 0.79-mm (132-in.) radius.14.5 Dimensional Change on HeatingDetermine lengthwise change in dimensions by averaging five measurements onspecimens immediately
34、 before and after oven heating. Each specimen shall be 101.6 6 1.6 by 101.6 6 1.6 mm (4 6 116 by 4 6116 in.) and be freely suspended in an oven controlled at 200 6 3C (392 6 5.4F) for a minimum of 30 min. After the heatingperiod, cool the specimens to 23 6 2C (73.4 6 3.6F), and remeasure them.14.6 C
35、ementabilitySeal the treated surface of the material by the application of controlled heat, pressure, and time of dwellto an adhesive-coated strip of aluminum sheet. Measure the peel strength at a peel angle of 180, and a speed of 30.5 cm/min (12in./min).14.6.1 Procedure for Preparation of Adhesive-
36、Coated Aluminum:14.6.2 Coat sheets of aluminum 254 by 254 mm (10 by 10 in.) evenly with No. 68040 adhesive7 using a No. 24 “Draw Down”rod and allow to dry in air for 8 h. The thickness of coating is not critical but it is important that the coating be smooth andbubble-free. Use methyl ethyl ketone t
37、o thin the adhesive if necessary, and for cleaning the equipment.14.6.3 Cut the coated sheets into strips 38.1 by 127 mm (1.5 by 5 in.) and store in a desiccator. It is not advisable to preparemore than a 2 or 3-month supply of coated aluminum at one time, as the adhesive slowly crosslinks in time a
38、nd seal strength valuesare lowered.14.6.4 Cut five 25.4 by 127-mm (1 by 5-in.) sample strips evenly spaced across the width of the film sample. The film mustbe free of fingerprints and contamination.14.6.5 Place each film specimen on a strip of the coated aluminum with the treated surface facing the
39、 adhesive. Seal the stripsin the heat sealer with the aluminum strip facing the heated jaw and the film facing the silicone rubber pad. Set the sealer at 10-sdwell time and 138-kPa (20-psi) jaw pressure. Set the temperature in accordance with Table 3.14.6.6 Make the seal, and after the specimen has
40、cooled to room temperature, determine the peel strength in a tension tester,at a peel angle of 180.14.6.7 Calculate the average seal strength in grams per inch from the five determinations.14.6.8 PrecisionIn a laboratory test, a sample tested by this test method had an average of 1316 g/in. with a 1
41、 value of 170covering 52 determinations by 8 operators.14.7 ThicknessMeasure the thickness in accordance with Method C or Method D of Test Methods D374, except formodification as follows: For Method C, the deadweight dial micrometer shall exert a pressure of 34.5 6 0.7 kPa (5 6 0.1 psi) andmeasureme
42、nts shall be 2 6 0.1 s after the pressure foot contacts the film. For Method D, the deadweight shall have a head diameterof 15.9 mm (58 in.) and exert a pressure of 48.3 6 0.7 kPa (7.0 6 0.1 psi). Measurement shall be made 2 6 0.1 s after the pressurefoot contacts the film.10 The mean of 10 random m
43、easurements shall fall within the specified limits and the area over which suchmeasurements are made shall be at least 30.5 cm (12 in.).15. Inspection and Certification15.1 Inspection and certification of the material supplied with reference to this specification shall be for conformance to therequi
44、rements specified herein.15.2 Lot-acceptance inspection shall be the basis on which acceptance or rejection of the lot is made. The lot-acceptanceinspection shall consist of all the requirements.15.3 Periodic check inspection with reference to this specification shall consist of the tests for all re
45、quirements of the materialunder this specification. Inspection frequency shall be adequate to ensure the material is certifiable in accordance with 15.4.10 A Twing-AlbertThwing-Albert VIR Electronic Thickness Tester, 89-2B Model II, has been found satisfactory for this measurement. This instrument p
46、rovides a digitalreadout, a printed record, and meets the TAPPI 411 Standard. It is available from the Twing-AlbertThwing-Albert Co., 10960 Dutton Road, Philadelphia, PA 19154. Otherequivalent instruments are acceptable.TABLE 3 Temperature SettingFilm Thickness, mm (in.) Temperature, C (F)0.0127 (0.
47、0005) 149 (300)0.025 (0.001) 163 (325)0.051 (0.002) 191 (375)0.076 (0.003) 191 (375)0.102 (0.004) 220 (428)0.127 (0.005) 274 (525)0.254 (0.010) 274 (525)0.508 (0.020) 274 (525)D3368 17615.4 Certification shall be that the material was manufactured by a process in statistical control, sampled, tested
48、, and inspectedin accordance with this specification, and that the average values for the lot meet the requirements of this specification (linecallout).15.5 Areport of test results shall be furnished when requested.The report shall consist of results of the lot-acceptance inspectionfor the shipment
49、and the results of the most recent periodic-check inspection.16. Packaging and Package Marking16.1 All packing, packaging, and marking provisions of Practice D3892 shall apply to this specification.17. Precision and Bias17.1 Table 4 is based on a round robin conducted in 19851986 in accordance with Practice E691, involving seven materialstested by six laboratories. For each material, the sheeting from which the test specimens were to be cut was obtained from onesource. Using a steel rule die, one set of test specimens for each laboratory was
