DLA A-A-56023 B-2010 INSULATING COMPOUND ELECTRICAL SILICONE RUBBER ROOM TEMPERATURE VULCANIZING.pdf

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1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: STDZNMGTdla.mil or Defense Logistics Agency Aviation VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616. Since contact information can change, you m

2、ay want to verify the currency of this address information using the ASSIST database at https:/assist.daps.dla.mil/. FSC 5970 INCH-POUND A-A-56023B 5 November 2010 SUPERSEDING A-A-56023A 15 February 1994 COMMERCIAL ITEM DESCRIPTION INSULATING COMPOUND, ELECTRICAL, SILICONE RUBBER, ROOM TEMPERATURE V

3、ULCANIZING The General Services Administration has authorized the use of this commercial item description for all federal agencies. 1. SCOPE. This commercial item description (CID) covers four types of room temperature vulcanizing, silicone rubber electrical insulating compounds. The insulating comp

4、ounds are intended for use in potting and encapsulating electrical and electronic components. 2. CLASSIFICATION. The insulating compounds shall be classified by the following types, as specified (see (7.4(b): Type I - Viscosity, 200 to 500 poises Type II - Viscosity, 200 to 600 poises Type III - Vis

5、cosity, 300 to 900 poises Type IV - Viscosity, 80 to 250 poises 3. SALIENT CHARACTERISTICS 3.1 General Requirements. The insulating compounds shall consist of an organo-polysiloxane polymer which, when mixed with a catalyst, shall cure to a rubbery solid. Cure shall be affected by catalytic action,

6、not solvent evaporation. The insulating compounds shall have a shelf life of not less than six months when stored in the original unopened containers at a temperature not greater than 26.7 C. The glass transition temperature (tg), or softening point, shall be as specified by the manufacturer when te

7、sted in accordance with IPC-TM-650, method 2.4.24, “IPC Test Methods Manual, Glass Transition Temperature and Z-Axis Thermal Expansion by TMA“. The insulating compound materials shall be homogeneous and free of foreign materials, and shall be packaged in clean well-sealed containers, in capacities s

8、pecified by the contract. The physical Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-56023B 2 requirements of the uncured insulating compounds are shown in table I. The physical and electrical requirements of the cured insulating compounds are

9、shown in table II. Conditioning requirements and testing conditions are shown in table III. Test methods are shown in table IV. TABLE I. Physical requirements, uncured insulating compounds. Requirement values Requirement Conditioning procedure 1 (see table III) Type I Type II Type III Type IV Uncata

10、lyzed, viscosity, average, minimum/maximum, poises A 200/500 200/600 300/900 80/250 Catalyzed, pot life, minimum, hours A 0.5 0.5 0.5 0.5 1Conditioning procedure A: As received, no special conditioning. Conditioning procedure E: Temperature conditioned (see table II, footnotes 1, 2 and 3). TABLE II.

11、 Physical and electrical requirements, cured insulating compounds. Requirement Conditioning procedures 1 2 3 (see table III) Requirement values, all types Hardness shore A, average, minimum/maximum A E-70/232 C + E-1/-24 C E-1/-54 C + E-1/24 C 35/70 35/70 35/70 Tensile strength, average, minimum, po

12、unds force per square inch (lbf/in 2) A E-70/232 C + E-1/24 C E-1/-54 C + E-1/24 C 300 150 300 Tear strength, average, minimum, pounds force per inch of thickness (lbf/in) A 15 Elongation, average, minimum, percent A E-70/232 C E-1/-54 C 100 75 100 Dielectric strength, average, minimum, volts per mi

13、l, approx. 75 mil sheet A 350 1Proceed with conditioning procedures after curing insulating compounds for not less than 72 hours at 24 C 3 C. 2Conditioning procedure A: As received, no special conditioning. 3Conditioning procedure E: Temperature conditioned; encoding definition is a capital letter i

14、ndicating type of conditioning, a number indicating the duration of the conditioning in hours, and a number indicating the temperature in degrees C. A sequence of conditions is denoted by a “+“ sign between conditions, see ASTM D618, “Standard Practice for Conditioning Plastics for Testing“. Provide

15、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-56023B 3 TABLE III. Conditioning requirements and testing conditions. Conditioning tolerances 1Testing conditions Conditioning procedure Time Temp Temperature and tolerances Remarks E (low temperature) 0,

16、+6 min. 2.8 C 24 5.6 C or -54 2.8 C as indicated Start test immediately after the cycling has been completed. E (high temperature) 0, +6 min. 5.6 C 24 5.6 C or 232 5.6 C as indicated Start test immediately after the cycling has been completed. 1Condition A: As received, no special conditioning. Cond

17、ition E: Temperature conditioned. TABLE IV. Test methods. Requirement Test method Viscosity Pot life Hardness Tensile strength Tear strength Elongation Dielectric strength Glass transition temperature ASTM D1084, method B MIL-PRF-23586 ASTM D2240 ASTM D412 ASTM D624 ASTM D412 ASTM D149 IPC-TM-650, m

18、ethod 2.4.24 4. REGULATORY REQUIREMENTS 4.1 Recovered materials. The offeror/contractor is encouraged to use recovered materials to the maximum extent practicable, in accordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR). 5. PRODUCT CONFORMANCE PROVISIONS 5.1 Product conforman

19、ce. The products provided shall meet the salient characteristics of this CID, conform to the producers own drawings, specifications, standards, and quality assurance practices, and be the same product offered for sale in the commercial marketplace. The government reserves the right to require proof

20、of such conformance. 5.2 Market acceptability. The products offered must have been previously sold either to the government or on the commercial market. 5.3 Metric products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pound units

21、, provided they fall within specified tolerances using conversion tables contained in the latest revision of FED-STD-376, “Preferred Metric Units for General Use by the Government“, and all other requirements of this CID are met. If a product is manufactured to metric dimensions and those dimensions

22、 exceed the Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-56023B 4 tolerances specified in the inch-pound units, a request should be made to the contracting officer to determine if the product is acceptable. The contracting officer has the opti

23、on of accepting or rejecting the product. 6. PACKAGING 6.1 Preservation, packing, and marking. Preservation, packing, and marking shall be as specified in the acquisition order (see 7.4(c). 7. NOTES 7.1 Part or identification number (PIN). The following PIN procedure is for government purposes and d

24、oes not constitute a requirement for the contractor. AA56023 - X Type: 1 - Type I - Viscosity, 200 to 500 poises 2 - Type II - Viscosity, 200 to 600 poises 3 - Type III - Viscosity, 300 to 900 poises 4 - Type IV - Viscosity, 80 to 250 poises CID number Example of reference part number: AA56023-1 7.2

25、 Material safety data sheets. Material safety data sheets shall be prepared for the insulating compounds described herein in accordance with the requirements of FED-STD-313, “Material Safety Data, Transportation Data and Disposal Data for Hazardous Materials Furnished to Government Activities“. Cont

26、racting officers will identify those activities requiring copies of completed material safety data sheets prepared in accordance with FED-STD-313. The pertinent Government mailing addresses for submission of data are listed in FED-STD-313. 7.3 Sources of documents. 7.3.1 FAR. The FAR may be obtained

27、 from the Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954. Electronic copies may be obtained from https:/www.acquisition.gov/far/. 7.3.2 Federal standards. Copies of federal standards may be obtained from General Services Administration, Federal Supply Service, Specification

28、Section, 470 East LEnfant Plaza SW, Suite 8100, Washington, DC 20407. Electronic copies may be obtained from https:/assist.daps.dla.mil/. 7.3.3 Military specifications. Copies of military specifications may be obtained from Standardization Documents Order Desk, 700 Robbins Avenue, Building 4D, Phila

29、delphia, PA 19111-5094. Electronic copies may be obtained from https:/assist.daps.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-56023B 5 7.3.4 ASTM standards. Copies of ASTM standards may be obtained from the ASTM International, 100 B

30、arr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959. Electronic copies may be obtained from http:/www.astm.org/. 7.3.5 IPC standards. Copies of IPC standards may be obtained from the IPC - Association Connecting Electronics Industries, 3000 Lakeside Drive, Suite 309 South, Bannockburn,

31、 IL 60015. Electronic copies may be obtained from http:/www.ipc.org/. 7.4 Ordering data. The acquisition order should specify the following information: a. CID document number, revision, and CID PIN. b. Type (see 2). c. Preservation, packing, and marking (see 6.1). 7.5 Subject term (key word) listin

32、g. Catalytic Conditioning Cure Dielectric Electronic Encapsulating Poise Polymer Polysiloxane Potting Viscosity MILITARY INTERESTS: CIVIL AGENCY COORDINATING ACTIVITY:Custodians: GSA - FAS Army - MI DLA - GS Review Activities: Army - CR4, MD, MR Preparing Activity: DLA - GS4 (Project 5970-2010-015)

33、NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST database at https:/assist.daps.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-