1、fi 5 -1- MIL-T-47326 59 4999906 0230988 3 = a O a I INCH-POUND MIL-T-47326(MI) . 5 January 1990 MILITARY SPECIFICATION TAPE , PRESSURE-SENSITIVE ADHESIVE, ALUMINUM-BACKED, ELECTRICALLY CONDUCTIVE This specification is approved for use by the Army Missile Command, Department of the Army, and is avail
2、able for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers one type of aluminum foil electrical tape with an electrically conductive pressure-sensitive adhesive. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and s
3、tandards. The following specifications and standards form a part of this document to the extent specified herein. Unless otherwise specified, the issue of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto,
4、 cited in the solicitation (see 6.2). SPECIFICATION FED ERAL PPP-T-680 Tape, Pressure-Sensitive Adhesive, Packaging and Packing of Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, U.S.
5、 Army Missile Command, ATTN: AMSMI-RD-SE-TD-ST, Redstone Arsenal, AL 35898-5270 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 5999 DISTRIBUTION STATEMENT A. Approved for public release; distri
6、bution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-Y732b 57 m 9779706 0230387 5 m MIL-T-47326(MI 1 5 a STA NDAR OS MIL ITARY MIL-STD-129 Marking for Shipment and Storage MI L -ST D- 130 Ident if i cat i on Mark i ng of U. S, M
7、i 1 i tary Property MI L-STD-202 Test Methods for Electronic and Electrical Component Parts MIL-STD-810 MIL-STD-45662 Environmental Test Methods and Engineering Guidelines Cal i bration Systems Requirements (Unless otherwise indicated, copies of the federal and military specifications, standards, an
8、d handbooks are available from the Naval Pub1 ications and Forms Center, (ATTN: NPODS), 5801 Tabor Avenue, Philadelphia, PA 19120-5099.) 2,2 Non-Government publications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified, the issues of d
9、ocuments which are DOD adopted are those listed in the- issue of the DODISS cited in the solicitation. documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). Unless otherwise specified, the issues of the AMERICAN SOCIETY FOR TESTING AND MATERIALS ASTM
10、 01000 Pressure-Sensitive Adhesive Coated Tapes Used for Electrical Insulation (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103). (Non-Government standards and other publications are normally avai 1 able
11、 from the organization which prepares or which distributes the documents. These documents also may be available in or through libraries or other informational services e 2.3 Order of precedence, In the event of a conflict between the text of the Nothing in this specification, however, shall supersed
12、e applicable document and the references cited herein the text of this document takes precedence. laws and regulations unless a specific exemption has been obtained. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-r i c flIL-T-LI7326 53 9773306 023
13、0770 L 3. REQUIREMENTS 3.1 First article. When specified (see 6.21, a sample shall be subjected to first article inspection (see 6.21, in atcordance with 4.4. . 3.2 Materials. The material shall be an electrically conductive, pressure- sensitive, aluminum-backed adhesive tape (see 4.6.2). 3.3 Roll c
14、ore. The tape shall be furnished on cores made of paper fiber or non-fibrous plastic. The core shall have sufficient rigidity to prevent distortion of the roll under normal conditions of transportation, storage, and use. Unless otherwise specified, the inside diameter of the core shall be 1.500 (+ .
15、O621 inches, and the width shall correspond to the width of the tape. The inside area of the core shall be of sufficiently light color to support identification marking. When specified in the contract or purchase order, a non-adhering liner shall be placed between layers of he tape (see 4.6.3 and 6.
16、2). 3.4 Width and length. The width shall be as indicated in 6.4. Length shall be 18 (+ - 0.125) yards (see 4.6.4). 3.5 Film thickness. (See 4.6.5). 3.5.1 Overall thickness. The overall thickness of the tape shall be 0.0045 - + 0.001 inch. 3.5.2 Backing thickness. The aluminum foil backing thickness
17、 of the tape 3.6 Adhesion to steel. The tape shall provide adhesion to steel strength of shall be 0.0020 - + 0.0005 inch. 25 ounces/inch width, minimum (see 4.6.6). 3.7 Tensile strength. The tape shall display a tensile strength of 10 pounds/inch width, minimum (see 4.6.7). 3.8 Electrical resistance
18、. The .electrical resistance of the tape shall be 0.01 ohms/inchL, maximum (see 4.6.8). 3.9 Fungus. Unless otherwise specified (see 6.21, the fungus conditions shall consist of exposure of one roll of tape and one 12-inch loose strip of tape with liner removed to the fungus cultures shown in table I
19、 for 28 continuous days at an ambient temperature of 30(860F) and a relative humidity of 95 + 5 percent. During and after exposure, the tape shall show no evidence- of supporting fungus growth (see 4.6.9). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
20、S-,-,-MIL-T-Ll732b 57 U 777770b 0230771 3 TABLE I. Fungus cultures. American type culture Quartermaster rgani sm Collection Number - l/ Number I 2/ _ Chaetmium globosum 6250 Aspergillus niger 6275 Asperg i 1 1 us f 1 avus 10836 Penci 11 i um ci tri num 9849 359 458 1223 1226 - l/ Source: American Ty
21、pe Culture Collection 2112 M Street, N.W. Washington 6, D.C. 2/ Source: Mycology Laboratory, PRD, Quartermaster Research and Engineering Center Natick, Massachusetts 3.10 Storage life. The tape, in the original, unopened, individual container, shall meet the requirements of 3.2.3, 3.2.4, and 3.3 aft
22、er storage for up to one year at temperatures in the range of 25O + 10C (77O - + 18*F) and with relative humidity not exceeding 90 percent (see 4.T6.10). 3.11 Marking identification. Marking for identification shall be in accordance with MIL-STD-130, shall appear on the inside circumference of the r
23、oll core, and shall include, but not be limited to, the following (see 4.6.1). a. The part or identifying number (PIN). b. The manufacturers name or trademark and CAGE code. c. Date of manufacturer. 3.12 Workmanship. The tape shall be clean and free from foreign matt defects that may impair its serv
24、iceability or appearance. The tape shal smooth, uniform, and free from lumps or bare spots. The tape edges shal straight and unbroken (see 4.6.1). s 4 p and be be Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-T-4732b 57 7777706 0230772 5 4. QUA
25、LITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or p
26、urchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in this specification where such ins
27、pections are deemed necessary to ensure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance. All items must meet all requ rements of sections 3 and 5. The inspection set forth in this specification sha 1 become a part of the contractors overall inspection sy
28、stem or quality program absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all reqirements of the contract. Sampling inspection, as part of
29、 manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to accept defective material. e The 4.2 Classification of inspection.
30、The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.4). b. Qual i ty conformance inspection (see 4.5). 4.3 Inspection conditions. Unless otherwise specified, all inspections shall be performed in accordance with the following test conditions. Te
31、mperature: Hum1 di ty: Barometr i c pressure : 70 to 80F 75 percent maximum Local corrected to sea level. 4,4 First article inspection. 4.4.1 First article sample. When spec fied in the contract or purchase order (see 3.1 and 6.21, the first article camp e shall consist of five rolls of tape represe
32、ntative of the production product. subjected to the inspections and tests as specified herein in the order shown. Quantity production shall be withheld unt 1 the first article sample has been pronounced satisfactory by the procuring activity. The first article sample shall be 4.5 Quality conformance
33、 inspection. Quality conformance inspection shall consist of the inspections listed in table II and specified herein. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-q73Zb 59 m 9799906 0230793 7 m Inspect i on . Requirement Test Paragraph Par
34、agraph TABLE I I . Qual i ty conformance inspect ion , I I 4.6.2 4.6.3 4.64 4.6.5 4.6.6 4.6.7 4.6.8 4.6.9 4.6.10 4.6.1 4.6.1 4.6.1 4.6.1 I I 4.5.1 Lot size. Lot size shall consist of all the tape manufactured in one production batch run, from one process, forming part of one contract or order, and s
35、ubmitted for acceptance at one time and place. 4.5.2 Quality conformation sample. Quality conformance inspection shall be performed on 2 rolls of tape taken from each lot offered for acceptance. 4.5.2.1 Action in case of failure. If the sample fails to meet one or more of the specified requirements
36、for quality conformance inspection, the entire lot represented by the failed sample shall be subjected to rejection. lots shall not be offered for acceptance until technical judgment dictates that the cause of failure has been analyzed and solved to the satisfaction of the procuring activity. Subseq
37、uent 4.5.3 Inspection equipment and facilities, Inspection equipment and facilities shall be of adequate quality and quantity to permit performance of the required inspections . 4.5.3.1 Inspection equipment accuracy. Equipment used to measure test conditions and test parameters shall be calibrated i
38、n accordance with MI L-STD-45662 . 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-LI7326 57 U 777770b 0230799 7 U 4.5.3.2 Inspect ion conditions. Unless otherwi se specif ied , al 1 inspections shall be conducted under the following conditio
39、ns of ambient temperature, humidity, and barometric pressure: * a. Temperature: 25 - + 10C (77 - + 18F) b. Relative humidity: 90 percent, maximum c. Barometric pressure: 30 - + 2 inches of mercury 4.6 Test methods. 4.6.1 Visual inspection. Visual inspection shall verify compliance with 3.11, 3.12, 5
40、.1, and 5.2. 4.6.2 Material. Visually observe for texture and backing. Perform tests specified, in 4.6.6 and 4.6.8. verify compliance with 3.2. Successful completion of these tests shall - ._ 4.6.3 Roll core. Perform visual and tactile examination to determine 0 rigidity and color. inside diameter.
41、Using standard measuring equipment, measure width and Verify compliance with 3.3. 4.6.4 Width and length. A test specimen, not less than 18 inches in length, shall be removed from a sample roll and placed adhesive side up on a smooth, flat surface. The test specimen shall be permitted to relax to re
42、move any latent elongation induced by the tension exerted on the tape during removaT from the roll. The width of the relaxed specimen shall then be measured to the nearest 1/64-inchY using a standard steel scale. Ten measurements shall be made, uniformly distributed along the length of the specimen.
43、 sample shall be the average of ten measurements made on the specimen. select a roll of tape and measure length, using standard measuring equipment. Verify compliance with 3.4. 0 The width of the Randomly 4.6.5 Thickness. The thickness of the tape shall be determined in accardance with ASTM D1000. V
44、erify compliance with 3.5. 4.6.6 Adhesion to steel. The test for adhesion to steel shall be in accordance with ASTM D1000. 4.6.7 Tensile strength. in accordance with ASTM D1000. 4.6.8 Electrical resistance. Resistance measurements shall be performed in accordance with MIL-STD-202, method 303. The el
45、ectrical resistance tirough the tape shall be determined using an apparatus as shown in figure 1. The brass electrodes shall beone inch square and 0.125 (minimum) inches thick, and shalt Verify compliance wih 3.6. The tensile strength of the tape shall be determined Verify compliance with 3.7. a 7 P
46、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-Y732b 57 W 7777706 0230775 O W MIL-T-47326(MI ) be smooth and free of burrs and scratches. After solvent cleaning of the electrodes, the tape shall be applied to one of them using contact pressure
47、only. The power supply shall be adjusted to deliver 0.10 f 0.01 ampere of current and applied for 5 f 1 seconds, Place the electrodes together as shown and apply a 5.0 f 0.5 poun load. electrodes as soon as possible after the load has been applied. Calculate the electrical resistance. Tape specimens
48、 shall be not less than one inch wide, Verify compliance with 3.8. Measure the voltage drop between the Electrical resistance (ohms/in,*) = voltage drop 0.1 ampere POWER SUPPLY AMMETER I I BRASS ELECTRODE I CONDUCTIVE ADHESIVE VOL - METAL FOIL BRASS ELECTRODE YETER Figure 1 - Electrical Resistance S
49、chematic Diagram 4.6.9 Fungus. Unless otherwise specified (see 6.21, the tape shall be tested in accordance with MIL-STD-810, method 508, procedure I or II, except that the conditions of 3.9 shall apply. After completion of the exposure, compliance with 3.9 shall be verified. The procuring activity, at its discretion, may accept a certification of the use of fungus resistant material in lieu of testing. 4.6.10 Storage life.
