1、Supersession Data i1 See Section 6 !G - o MILITARY SPECIFICATION PLASTIC, MOLDING MATERIAL, POLYCARBONATE, GLASS FIBER REINFORCED This specification is mandatory for use by all Departments and Agencies of the De- partment of Defense, 1. SCOPE 1.1 Scope - This specification covers three types of glas
2、s-fiber filled polycarbonate materials suitable for injection molding and extrusion. 1.2 Classification - Glass-fiber filled polycarbonate material covered by this specification shall be of- the following types, as specified: Type I Type II Type III - General purpose, 40% glass-fibers - General purp
3、ose, 20% glass-fibers - High dispersion, 20% glass-fibers 2, APPLICABLE DOCUMENTS 2.1 invitation for bids or request for proposal, form a part of this specification to the extent specified herein. The following documents, of the issue in effect on the date of SPECIFICATIONS Federal L-P-393 PPP-B-601
4、 PPP-B-621 PPP-C-96 PPP-P-704 STANDARDS Federal Fed. Test Method Standard No. 406 Plastic Molding Material, Polycarbonate Molding and Extrusion Box, Wood, Cleated-Plywood Box, Wood, Nailed and Lock Corner Can, Metal, 28 Gage and Lighter Pails, Shipping, Steel (1 through 12 Gallon) Plastics: Methods
5、of Testing Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-81370 73 W 7777706 0923592 1 W MIL-P-81390 Military MIL-STD-105 Sampling Procedures and Tables for Inspection by Attributes Marking for Shipment and Storage MIL-STD-129 MIL-STD-831 Test
6、 Reports Preparation of (Copies of specifications, standards, drawings, and publications required by suppliers in conneotion with specific procurement functions should be obtained from the procuring aotivity or as irected by the contracting officer,) of this specification to the extent specified her
7、ein, Unless otherwise indicated, the issue in effect on date of invitation for bids or request for propoeal shall apply. 2.2 Other publications - The following document forms a part CONSOLIDATED CLASSIFICATION COMMITTEE Uniform Freight Classification Rules, (Application for copies should be addresse
8、d to the Consolidated Classification Committee, 202 Chicago Union Station, Chicago 6, III.) 3. REQUIREMENTS 3.1 inspection (see 4.4,l). 3.2 Preproduction - This specification provides for preproduction Material - The material shall consist of glass fibers dispersed in a polycarbonate resin with or w
9、ithout additives or stabilizers, as required, to meet the requirements of this specification. The base resin shal1,meet the require- ments of Federal Specification L-P-393. 3.2.1 Color - The color of the material shall be natural, unless other- wise specified (see 6.2). 3,2,2 Form - The form of the
10、material shall be as specified by the procuring activity (see 6.2). 3.3 Properties - The material shall meet the requirements specified in table I, when tested in accordance with the applicable method specified in section 4. 3.4 Workmanship - The plastic material shall be uniform in form and composi
11、tion. It shall be free of foreign matter, and shall be prepared by such pro- cesses as to conform to this specification. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-81370 73 m 779970b 0423573 3 m MIL-P- 81390 O d( 9 cr) Cu Co Cu v) u3 r(
12、rl O O O rl FI X b x rl G Cu O O 1 0, bi Cu O 20 O mo 1 c?r Q! Cu Ln ln rl rl O O X c1 rl O O m O * o, . N FI FI u3 Co cv O O X u3 O O aa O O h .I 9 o, co 4 r X c- X FI 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-51370 73 977770b 0423574
13、5 2JIL-P- 8 1 3 90 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-1370 73 777770b 0423575 7 MIL-P81390 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inswction - Udess otherwise specified in the contraot or purchase order, the suppli
14、er is responsible for the performance of dl inspection requirements as specified herein. Except as otherwise specified, the supplier may utilize his own facilities or any commercial laboratory acceptable to tlie Government, The Government reserves the right to perform any of the inspections set fort
15、h in the specification where such inspections are deemed nec- cessary to assure supplies and serviceaconfbrm to prescribed requirements, 4.2 Lot or batch - For the purposes of sampling, the term lot shall be the inspection lot or manufacturer s batch. This shall consist of all material produced unde
16、r like conditions in a continuous unchanged process by one manufacturer and inspected at one time. 4.3 Sampling - 4.3.1 Inspection of filled containers - A random sample of filled con- tainers shall be selected from each lot or batch in accordance with MIL-STD-105, at inspection level I, and the acc
17、eptable quality level (AQL) specified in table II. to verify compliance with stipulations of this specification regarding closure, marking, and other requirements not involving actual testing. 4.3.2 Sampling for tests - Three representative samples of equal size shall be selected from each batch pri
18、or to packaging. If sampling is done after packaging, three containers (packages or drums) shall be selected at random from each batch, Containers shall be opened carefully, making sure that there is no contamination from scale, paint, shattered heads, torn liners, or from any other cause. The three
19、 representative samples shall be composited, placed in a clean dry metal or glass container, and tightly closed. TABLE II - Inspection of Filled Containers Material Material (see 3,2 .l, 3.2.2 and 3.4) In open container (see 5.1) Closed container (see 4.3.2, 5.1 and 5.2) AQL 2 e50 1 .o0 1 O0 Classif
20、ication of defect Minor 201 Minor 202 Major 101 Major 102 Major 103 Defect Non-uniform material of form Contamhated material Improper liner or no liner (in fiber or ply- wood drum) Exceeds Max. or Min. gross weight Marking misleading, missing, or unidenti- fiable Method of inspection Visual Visual V
21、isual Approved scale Visual 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-m ? MIL-P-81390 93 m 9999906 01.123596 9 m f MIL-P- 81390 * 4.4 Classification of tests - The examining and testing of the resin shall be classified as follows: (a) Preprod
22、uction inspection (b) Quality conformance inspection 4.4.1 Preproduction inspection - Preproduction inspection shall con- siet of testing for all the property values listed in Table I. The responsibility for the performance of the preproduction inspection shall be as specified in the contract or ord
23、er (see 8.2); 4.4.1.1 Preproduction test sample - The production test sample shall consist of a sufficient quantity of resin selected at random from a production batch (see 4.3). Preproduction samples shall be identified as required and forwarded to the designated laboratory. Each sample shall be ac
24、companied by the contractore test report, prepared according to MIL-STD-831, and the manufacturerfs instructions, 4,4.2 Quality Conformance Inspection - Qality conformance tests shall consist of the following tests unless otherwise specified: (a) Specific Gravity (b) Tensile Strength (c) Flexural St
25、rength (d) Izod Impact Strength (e) Deflection Temperature (f) Dielectric Strength (g) Dielectric Constant Methods of test - Tests shall be conducted in accordance with 4.5 table III and the following paragraphs. 4,5,1 Preparation of Test Specimens - Specimens of the form specified shall be molded f
26、rom dry polycarbonate resin. Drying of the resin (if required) and molding conditions shall be in accordance with the manufacturerfa instructions. 4.5.2 Tensile strength - Five specimens shall be tested in accordance with Method 1011 of Federal Test Method Standard 406. The speed of the cross head s
27、hall be 0.2 inch per minute throughout the test, and the elongation and modulus shall be recorded automatically. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-? NIL-P-81390 73 m 797990b OL123577 O m 3 Table III - Test .Methods and Nmbers of Speci
28、mens MIL-P- 81390 Test Specific Gravity Tensile strength Izod Impact strength Deflection tempera- ture Deformation under load Flexural strength Dielectric strength Dielectric constant Arc resistance, Stainless Steel Electrodes Volume resistivity Surface res is tivity Corrosivity Index Flammability “
29、ungus resistance Koisture Method No. of Fed.Test Method Std 406 eo11 1011 10 71 2011 1101 1031 4031 4021 4011 404 1 4041 70 71 2921 6091 Modified Paragraph by 4.5.2 4.5.3 4.5.4 4.5.5 Number and size of Specimens to be tested 1 (2 in. dia) (1/8 in. thk) 5 (1/8 in. thk) 5 (1/4 in. wide) 3 (1/2 in. thk
30、) 3 5 4 (1/8 in, thk) 4 5 4 (1/8 in. thk) 4 (1/8 in. thk) 1 10 1 1 Size is given if other than specified in the procedure. 4.5.3 Deformation under load - The specimens shall be tested in accordance with Method 1101 of Federal Test Method SM. No. 406, except that the specimens shall be pre-conditione
31、d 24 hours at 50 + l0C prior to testing. All 112 inch surfaces shall be flat and parallel to each other. All horizontal surfaces shall be plane-parallel and ground if necessary to remove sink marks. 4.5.4 with Method 7071 of Federal Test Method Std, No. 406 except that an equivalent to a Wiley miil
32、may be used. Corrosivity Index - A specimen shall be tested in accordance 4.5.5 Moisture content - A 200-gram, or larger, sample of pellets ahall be placed in a 300F. heating chamber for 60 minutes, or longer, The weight 108s divided by the original weight, multiplied by 100 determines the percent m
33、oisture. 4.6 Rejection - Failure to comply with any of the requirements of this specification shall be cause for rejection of the lot represented. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-1390 93 W 9999906 04Z359 2 I MIL-P- 89390 5. PR
34、EPARATION FOR DELNERY 5.1 Packaging - 5.1.1 carbonate resin shall be packaged in a container conforming to Specification PPP-C-96 or PPP-P-704. Selected container shall be provided on interior coating as prescribed in the applicable container specification. Level A - A specified quantity (see 6.2) o
35、f glass filled poly- 5.1.2 Level C - The resin shall be packaged in a manner which shall afford adequate protection during shipment from the supply source to the first receiving activity. 5.2 Packing - 5.2.1 Levels A and B - The packaged resin shall be packed in snug fitting boxes conforming to Spec
36、ification PPP-B-601 or Specification PPP-B-621. The gross weight of the filled box shall not exceed 200 pounds. 5.2.2 Level C - The polycarbonate resin molding material shall be packed to insure acceptance by common carrier and safe delivery to destination at the lowest applicable rate. Containers s
37、hall comply with the Uniform Freight Classification Rules or other carrier regulations.applicable to the mode of transportation. o 5.3 Marking - In addition to any special marking specified in the contract or order, the shipping containers shall be marked in accordance with Standard MIL-STD-129. 6.
38、NOTES 6.1 Intended use - Glass reinforced polycarbonate may be utilized in applications where dimensional stability, high-impact resistance, and good dielectric properties are needed. It is sei-extinguishing and fungus resistant. In specifying this material, design engineers are cautioned that polyc
39、arbonates are not recommended for applications requiring good fatigue strength when subjected to ultra-violet light exposure. The three types are suitable for the following appiications. Terminai blocks Connectors Tool housings Stuffing boxes Rooket launcher components Pump impellers Switch bodies 8
40、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-P-l1390 93 997990b 0423599 4 MIL-P- 81390 6.l.2 Type II: - Electrical components in which non-flammability is most important i. e. coil forms terminal strips etc. 6.1.3 Type III: - Same as Type II
41、applications but with the added requirements of molded-in corea or small core pins. The improved dispers- ability of the fiber facilities molding around these cores. 6.2 Ordering data - Procurement documents should specify the following: (a) Title number and date of this specification (b) Type of ma
42、terial required (see 1.2) (c) Color (see 3.2.1) (d) Form if required (see 3.2.2) (e) Size and kind of container and quantity desired (f) Applicable levels of packaging and packing (see 5.1 and 5 2) (g) Responsibility for the performance of the preproduction inspection. 6.3 Supersession data - This s
43、pecification includes the requirements of Navy Purchase Description WS 2466 dated 27 June 1963. Custodians: Army - MR Navy -AS Preparing Activity : Project No. 9330-0223 Navy - AS Review Activities: Army - MR, MO, MI, EL Navy -AS, SH Review/user information is current ae of the date of this document. For future coordination of changes to this document, draft circulation should be based on the information in the current Federal Supply Classification Listing of 1X)D Standardization Documents. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
