1、flIL-C-2577A 57 770b 0078259 7 ,- /-/-/-/y -. -MIL- C- 82 59 7A( OS) 8 August 1975 14 February 1972 MIL-C-82597( OS) MILITARY SPECIFICATION COMPOUND, ELECTRICALLY CONDUCTIVE This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 This specifi
2、cation covers the requirements for procurement of a special purpose, electrically conductive compound for use with certain underwater ordnance. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on theaate of invitation for bids or request for proposal form a part of this spe
3、ci- fication to the extent specified herein: SPECIFICATIONS Federal QQ-P-35 Passivation Treatments for Corrosion Resisting Steel QQ-S-766 Steel Plates, Sheets, and Strip- Corrosion Resisting MILITARY MIL-P-21929 MIL-P- 4612? STANDARDS Federal FED-STD-791 Plastic Material, Cellular Poly- urethane, Fo
4、am-In-Place, Rigid (2 and 4 pounds per cubic foot) Plastic Molding and Extrusion Material, Ionomer Resins Lubricants, Liquid Fuels, and Related Products ; Methods of Testing / FSC-59 75 THIS DOCUMENT CONTAINS -8 PAGES Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
5、se from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-82577A 57 7777706 0078261 5 MIL-C-82597A( OS) compound that will conform to all requirements of this specification. 3.1.3 Conflicting requirements. In the event of conflict between
6、 the documents referenced herein and the contents of this specification, the contents of this specification shall apply. 3.2 3.2.1 Corrosive effect Performance requirements and product characteristics 3.2.1.1 Metals. The compound shall produce no attack, as indicated by decomposition or pitting, on
7、corrosion-resisting steel when tested in accordance with 4.6.1.1. 3.2.1.2 Non-metals. The compound shall produce no evidence of stress cracking, crazing, hardening, swelling, shrinkage, or deterioration on non-metallic materials such as ionometric type polyolefin, and poly- urethane foam when tested
8、 in accordance with 4.6.1.2. 3.2.1.3 Galvanic. The compound shall not increase the galvanic corrosion characteristics of corrosion resisting steel when tested in.accordance with 4.6 .l. 3. 3.2.2 Flash point. The compound shall not flash at temperatures less than 149OC (3OOOF) when tested in accordan
9、ce with 4.6.2. 3.2.3 Consistency 3.2.3.1 Viscosity. The apparent viscosity of the compound at the spec- ified temperatures and shear rates shall be within the following limits when tested in a.ccordance with 4.6.3 1: Temperature Shear Rate (Sec -1 ) Viscosity (Poise) MAX MIN 200 400 200 400 (O0,+-lo
10、C) 32O f 2OF 20 (320 k 3oc) goo f 5OF 50 (32O rt 3OC) 90 f 5OF 20 . 400 9 O0 400 900 3.2.3.2 Worked penetration. The worked penetration of Le compoun, at 25 k l0C (77 rt 2OF) shall be 285 f 50 when tested in accordance with 4.6.3.2. A 3.2.4 Temperature stability. standing a low temperature extreme o
11、f -4OOC (-40F) and a high temperature The compound shall be capable of with- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-extreme of 54OC (130OF) when tested in accordance with 4.6.4 without showing evidence of crystallization or deterioriation. A
12、fter exposure, the compoudd shall continue to meet the requirements of 3.2.2, 3.2.3, 3.2.5 and 3.2.6, 3,2.5 Separation. The compound shall not lose more than 4. O percent of its weight when tested in accordance with 4.6.5. 3.2.6 Electrical resistivity. The resistivity of the compound 25 2 l0C (77 k
13、2OF) shall be 5 to 38 ohm-centimeters when tested in accordance with 3.2,7 Workmanship, The compound shall be smooth, homogeneous, and tree fiom lumps, abrasives, dirt, water, and other foreign materials. standards of workmanship exhibited in any approved preproduction sample, subject to any qualifi
14、cation stated in the Governments notice of approval, shall be determinative of the requirements of the contract relative to workmanship insofar as not specifically covered by applicable specifications. The 4* QUALITY ASSURANCE PROVISIONS 4*J. Responsibility for inspection. Unless otherwise specified
15、 in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. speciied in the contract or order, the supplier my use his own or any other facilities suitable for the performance of the inspection requirements specified herein,
16、 unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Except as otherwise e 4.2 Classification of Inspec
17、tions. The inspection requirements specified herein are classified as follows: (a) Preproduction Inspection (See. 4.3) (b) Quality Conformance Inspection (See 4.4) (c) Periodic Production Inspection (See 4.5) :*: 4.3 Preproduction Inspection. Unless otherwise specified, a sample of compound (eight p
18、ounds minimum) shall be forwardedto an activity specified by the procuring activity for preproduction inspection (see 6.2). The preproduction inspection shall consist of all tests specified in 4.6. Portions of the sample may be reused for various tests except that those portions used for separation
19、and flash point determinations my not be reused. grounds for rejection of: the sample. shall not apply if any component is changed in type, grade or quantity prior to or during production. Failure to meee any requirement of this specification shall be Approval of the preproduction sample Provided by
20、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-UIL-C-82577A 57 7777706 00782b3 7 MIL-C- 82597A( OS ) * 4.4 Quality Conformance Inspection. The quality conformance inspection shall consist of the lot and the batch acceptance tests. 5: 4.4.1 Lot Acceptance Tests
21、. sample of not less than 3 pounds shall be obtained and tested in accordance From each lot submitted for acceptance, a with 4.6.3 and 4.6.5. Samples shall be obtained in accordance with the grease sampling method of ASTM D270-65 (section 37) and shall be repre- sentative of the batches comprising t
22、he lot. Failure of the samples to meet the consistency requirements of 3.2.3 or the separation requirement of 3.2.5 shall be cause for rejection of the entire lot. (a) - Lot. For inspection purposes, a lot shall consist of 2000 pounds or less of compound manufactured from the same order of raw mater
23、ials, and may consist of one or more batches. 4.4.2 Batch Acceptance Tests. A sample of approximately 2 ounces avoirdupois (one ounce minimum) shall be obtained from each batch and tested in accordance with 4.6.6. requirement of 3.2.6 shall be cause for rejection of that entire batch. Failure of any
24、 sample to meet the (a) Batch. the quantity of compound manufactured in one operation and shall be equal to or smaller than a lot. For inspection purposes, a batch shall consist of 9: 4.5 Periodic Production Inspection. When specified in the contract or order (see 6.21, a periodic production sample
25、of 8 pounds shall be obtained from every fourth lot in accordance with 4.4.1 and forwarded to an activity designated by the procuring activity for periodic production inspection. production inspection of 4.3. Testing and evaluation shall be as specified for the pre- 4.6 Test procedures 4.6.1 Corrosi
26、ve effect 4.6.1.3. Metals. The metals used shall be corrosion-resisting steel, Classes 304 and 316, per QQ-S-766. in accordance with QQ-P-35, Type I. with the compound to enable a comparison to be made between the coated and uncoated portions. air oven and held at a temperature of 54 $: 3OC (130 k 5
27、OF). of 70 hours in the oven, the strips shall be removed, cooled, and wiped clean with a dry, lintless cloth. or deterioration of the metal. permissible. The steel strips shall be passivated The strips shall be partially coated The coated strips shall be placed in a convection current After a perio
28、d There shall be no evidence of pitting Minor discoloration of the metal will be 4.6.1.2 Non-metals. Specimens of ionomeric type polyolefin, MIL-P- 46124 Type V, Class 1, and polyurethane foam, MIL-P-21929, Class 1, shall be coated with the compound and tempered similar to 4.6.1.1. There shall be no
29、 evidence of cracking, crazing, hardening, swelling, shrinkage, or Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- NIL-C-82547A 59 9999906 00782bli O MIL-(2-82 59 7A( OS ) deterioration of the material that can be attributed to the application of th
30、e compound. 4.6.1.3 Galvanic. A strip of corrosion resisting steel as described in 4.6.1.1 shall be partially coated with the compound. uncoated portions shall be completely immersed in seawater, or a 2 percent saline solution, at a temperature of 32 rf: 3OC (90 i 5OF) for a period of 30 days. “here
31、 shall be no deterioration of the compound or increase in corrosion of the coated portion when compared to the uncoated portion. The coated and 4.6.2 Flash point. Flash point shall be determined in accordance with ASTM D92-66 4.6.3 Consistency 4,6,3.1 Apparent viscosity. The apparent viscosity of th
32、e compound, at the temperatures and shear rates specified in 3.2.3.1, shall be determined in accordance with ASTM Dl092-62. 4.6.3.2 Worked penetration. The worked penetration values of the com- pound shall be determined in accordance with ASTM D217-67T. e 4.6.4 Temperature stability. Individual samp
33、les of the compound shall be conditioned in temperature chambers maintained at -40 f 3OC (-40 $. 5OF) and 54 k 3OC (130 .f- 50F), respectively, for 48 hours. of this period, each sample shall be allowed to return to ambient temperature, examined fop evidence of crystallization or deterioration, then
34、 retested in accordance with 4.6.2, 4.6.3, 4.6.5 and 4.6.6. or deterioration or failure to meet any requirement shall be cause for rejection of both samples. At the conclusion Any evidence of crystallization 4.6.5 Separation. The amount of separation of the compound shall be determined in accordance
35、 with FED-STD-791, Method 321.2 , except that the temperature of the test shall be 54 k 3OC (130 f 5OF) and the test duration shall be 48. hours. 4.6.6 Electrical resistivity. A sample of the compound shall be placed The cross-secticmal area and volume of compound used in a suitable fixture and the
36、resistance measured in accordance with MIL- STD-202, Method 303, for this test is optional; however, precise interpolation must be made to translate the measured value to the equivalent resistivity of ohm-centimeters. Care must be taken in preparing the sample to insure that there are no voids or ai
37、r pockets, The resistivity shall be within the limits specified in 3.2.6. 5. PREPARATION FOR DELIVERY 5.1 Packaging and packing. Requirements for packaging and packing shall be as specified by the procuring activity in the contract or purchase order (see 6.2) 6 Provided by IHSNot for ResaleNo reprod
38、uction or networking permitted without license from IHS-,-,-MIL-C-82577A 57 W 7777706 0078265 2 MIL-C- 82 59 7A( OS ) 5.2 Marking. Unless otherwise specified in the contract or purchase order (see 6.2), the container shall be marked with the date (month and year) of manufacture and in accordance wit
39、h MIL-STD-129. 6. NOTES 6.1 Intended use. The compound described in this specification is used in the manufacture of certain underwater ordnance as a restraining media for adjacent windings of a communication wire in a wire coil and to pro- vide an electrically conductive coating throughout the enti
40、re length of wire in the coil. 6.2 Ordering data. Procurement documents should specify the following: 6.2.1 Procurement reauirements (a) Title, number, and date of this specification (b) When a preproduction sample is not required (see 3.3.1, (c) Quantity required (pounds) (d) When periodic producti
41、on inspection is required (see 4.5) (e) Assigned activity for preproduction and periodic production (f) Type and size of containers (see 5.1 and 6.4) (g) Markings, if other than as specified (see 5.2) (h) Exceptions to this specification * 4.3 and 6.2.3) . * inspections (see 4.3 and 4.5) .*. , * 6.2
42、.2 Contract data requirements: connection with this document shall be specified on a DD Form 1423 incorporated into the contract. on completed (numbered) DIDs (Data Item Descriptions/DD Form 1664) which will be documented in the applicable ADL (Authorized Data List). Any data required for delivery i
43、n Such data will be delivered as identified 6.2.3 Waiver of preproduction sample. Invitations for bids should provide that the Government reserves the right to waive the requirements for samples for preproduction inspection as to those bidders offering a product which has been previously procured or
44、 tested by the Government, and that bidders offering such products, who wish to rely on such production or test, must furnish evidence with the bid that prior Govern- ment approval is presently appropriate for the pending procurement. 6.3 Safety precautions 6.3.1 Electrical hazard. The material desc
45、ribed herein is electrically Care should be taken to keep all electrical heads, cables, conductive. connectors, switches , outlet boxes , and other electrical equipment clean of this material. 6.4 Specific gravity. For ordering information only , the specific gravity is approximately 1.043 at 60/60
46、degrees F. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-meet the requirements of this specification was compounded as follows: Approximately a seven-to-one (7:l) mixture by weight of silicone damping fluid (100 centistokes nominal viscosity) and c
47、onductive acetylene black (100 percent compressed grade). compositions from being used, provided all other requirements of this specification are adhered to. This paragraph in no way limits other 6.6 The margins of this specification are marked with an asterisk (fi) to indicate where changes (additi
48、ons, modifications, corrections, deletions) from The previous issue were made. and the Government assumes no responsibility whatsoever for any inaccura- cies in these notations, Bidders and suppliers are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Custodian : Preparing activity: This was done as a convenience only t “V _. , Navy - OC Navy - Oc Project No. 5975-N525 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
