1、 537-q _- MIL-P- I 24 VDC Figure 2. Direct Current Firing Test Setup A PRIMER B Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-450 mf C IIARGE SWITCH -t i 100 sl f 7LG - FIRING SWITCH CLOSE CHARGE SWITCH FOR 15 SEC THEN OPEN I Y PRIMER STOP SWITCH (
2、SEE FIGURE 1) START CIRCUIT STOP CIRCUIT / i, 24vD I ELECTRONIC COUNTER t.ilil II _I Figure 3. Cbpacitor Discharge Firing Test Setup 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I_ MIL-P-82530.13 = 9999906 03b175b L I MIL-P-82530 (OS) ROLLED Fig
3、ure 4. Correct Arrangement for Measuring Depth of Indentation After Zero Setting 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.4.3 Test conditions. Unless otherwise specified, the primer shall be subjected to the preproduction and peripdic pro
4、duction tests and quality confor- mance inspection tests under the following conditions: a. Temperature Room ambient (65 to 95 degrees F) b. Altitude Normal ground atmospheric pressure c. Humidity (Relative) Room ambient up to 95 percent 4.5 Preproduction and periodic production inspections. The pre
5、production and periodic production samples shall be subjected to the tests specified in para- graph 4.5.1 after satisfactorily passing the quality conformance inspections as indicated in Table I. 4.5.1 Test procedure. Subject the primer to the test sequence listed in Table I. Unless otherwise specif
6、ied in the individual test paragraph, the quality conformance inspection, as specified in Table I, shall be performed subsequent to environmental tests under test conditions specified in 4.4.3. FaiIure of the primer to pass any one of these tests shall constitute a defective unit. 4.5.1.1 Vibration.
7、 The primer shall be mounted to a suitable holding fixture with the leads taped to the fixture, and subjected to vibration tests in accordance with MIL-STD-331, Test 104, Procedure II. After vibration, the primer shall pass only the continuity and resistance test 4.6.1.1 and capacitor discharge func
8、tioning test 4.6.1.4.2. 4.5.1.2 Temperature and humidity. The primer shall be subjected to temperature and humidity testing as specified in MIL-STD-331, Test 105, for one (1) JAN cycle (two weeks), or the primer may be subjected to a total of 21 complete teiiiperature and pressure cycles as describe
9、d irr 4.5.1.2.1, After cycling, the primer shall pass only the capacitor discharge functioning test 4.6.1.4.2. 4.5.1.2.1 Temperature and humidity alternate test procedure. This is an alternate procedure, which may be performed in place of MIL-STD-331, Test 106, specified in 4.5.1.2. The primer shall
10、 be submerged in water in a suitable test chamber. The primer shall then be subjected to 15-minute overall elapsed time intervals of successive submersion and vacuum: (1) in water at a temperature of 160 degrees F plus or minus 10 degrees F and at an absolute pressure of 58 inches of mercury; (2) a
11、partial vacuum equivalent to a maximum of Ci inches of mercury absolute; (3) a tap water submergence at an absolute pressure of 58 inches of mercury; and (4) a repeat of the vacuum cycle. The aforementioned steps, (1) through (4), constitute one complete cycle. A minimum temperature differential of
12、90 degrees F shall be maintained between the 160 degrees F hot-water cycle and the tap-water cycle. Suitable instrumentation shall be furnished to indicate that the conditions of the test are being met, and Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
13、-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-2530 13 M 7977706 0361759 7 _ - _ MIL-P-$2539 (OS) 4.6.1 Test procedure. The primer shall be subjected to the tests and examinations as outlined herein, Unless otherwise specified, inability
14、of the primer to pass the tests and examinations shall constitute a failure. 4.6.1-1 Continuity and resistance. Using the ohmmeter specified in 4.4. la, measure the resistance of the primer. The resistance shall be not less than O, 14 ohm nor more than O. 20 ohm. 4.6.1.2 Electrical nonfiring sensiti
15、vity. Using the equipment specified in 4.4, IC, subject the primer to a DC current of 1.00 plus or minus O. 10 ampere for a minimum of 10 seconds. The primer shall not function. 4.6.1.3 Insulation resistance, Using the megohmmeter specified in 4.4. lb, subject the primer to an alternating potential
16、of 1000 volts, applied between the primer case and the shorted lead wires for a minimum of one second. The resistance shall not be less than 50 megohms. 4.6.1.4 Functioninp; tests. 4.6.1.4.1 Direct current functioning. The direct current time test shall be conducted utilizing the equipment specified
17、 in 4.4. IC. The primer shall be subjected to a DC firing current adjusted to 5.00 plus or minus O. 15 amperes. The primer shall function within an upper specification limit of 5. O milliseconds. The occurrence of one or more duds shall be cause for rejection of the lot. 4.6.1.4.2 Capacitor discharg
18、e functioning. The capacitor discharge test shall be conducted utilizing the equipment specified in 4.4. Id. The primer shall be subjected to the discharge of a 450 microfarad (maximum) capacitor charged to 24 plus 4 minus O volts. The primer shall function within an upper specifica- tion limit of 4
19、00 microseconds. The occurrence of one or more duds shall be cause for rejection of the lot. 4.6.1.4,3 Output. The primer shall be placed in a suitable test fixture indicated in Figure 1 or equivalent, and subjected to the discharge of a 450 microfarad (maximum) capacitor having a charge of 24 plus
20、4 mhus O volts, This test may be conducted at the same time as the capacitor discharge function- ing test 4.6.1.4.2. The primer shall be inserted in brass holders such that the forward face of the case rests tightly against the insulation tape, over the aluminum block. After firing, the primer outpu
21、t shall be evaluated by measuring the depth of indentation caused in the aluminum block, A dial indicator reading in thousandths of an inch shall be mounted over a horizontal surface plate in such a manner that the indicator stem is perpendicular to the surface plate. The aluminum disc shall be plac
22、ed, indented side up, in a ring-type holder, so arranged that the periphery of the bottom face of the disc is approximately parallel to the surface plate, The indicator tip shall be lowered to the bottom of the disc indentation, and the indicator dial set to zero. Four readings, measured in thousand
23、ths of an inch, shall be determined near the periphery of Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82530 13 9779706 0361760 3 W the indentation at approximately equidistant points. The arithmetical average of the four measurements shall
24、be considered as the average depth of indentation for that particular disc. The depth of indentation shall be within the lower speci- fication limit of O, O10 inch and the upper specification limit of O. 050 inch. 4.6.2 Visual examination. Visual examination shall be made on each primer submitted fo
25、r delivery to the procuring activity. The primer shall be examined for conformance to the requirements of good workmanship in paragraph 3.5. Nonconformance is cause for rejection of the individual unit. 4.7 Packaging, packing, and marking. The primer shall be examined for conformance to the prescrib
26、ed packaging, packing, and marking requirements of Section 5. 5. PREPARATION FOR DELIVERY 5.1 Packaging. Twenty-five (25) to fifty (50) primers shall be bundled together and secured with aluminum foil. A total of one hundred (100) primers shall be packaged in a setup paperboard box, which meets mini
27、mum board re- quirements for weight of contents as contained in Table III of PPP-B-566 or Table II of PPP-B-676. 5.2 Packing. Fifty (50) boxes, each containing one hundred (100) primers or a total of five thousand (5,000) primers), packaged as described in 5.1, shall be packed in a nailed wooden box
28、 conforming to the requirements of PPP-B-601. 5.3 Marking. In addition to any special marking required by the contract or order, unit packages, intermediate packages, and shipping containers shall be marked in accordance with the requirements of MIL-STD-129 and 49 CFR Part 71 to 78. 5.4 Primer data
29、cards. Data cards, 3 inches by 5 inches, made from commercial white cardboard, printed as shown in Figure 5, shall be filled out for each lot of primers and five (5) data cards shall be placed in each packaging container. /- Provided by IHSNot for ResaleNo reproduction or networking permitted withou
30、t license from IHS-,-,-MIL-P-2530 13 7779706 0361761 5 - MIL-$2530 (69) Date: Mo Yr No. No, in Box Prod. Lot Size Remarks Lot Type I ( ) Regular ( ) Mixed ( ) Special I Figure 5. Primer Data Card Format G. NOTES G. 1 Intended use and description. G. 1.1 Intended use. This primer is intended to be us
31、ed in conjunction with other ordnance items such as Detonator Mk 59. G. 1.2 Description. The primer is a resistance wire-bridge-type electric primer designed to be insensitive to 1-ampere DC firing current. The primer is initiated by either a capacitor discharge or a DC firing current and contains a
32、pproximately 170 milligrams of primary explosive. materials of construction will permit the use of this primer in severe environ- mental conditions. The design of the unit and 6.2 Ordering data. Procurement documents should specify the following: a, Title, number, and date of this specification b. R
33、equired level of packaging c. Required level of packing d. Any exceptions to this specification Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82530 13 m 7777906 03b1762 7 m e. Test and inspection reports on all tests specified herein shall be
34、 pre- pared and submitted to the procuring activity. . f. Designation of particular lots to be subjected to periodic production . tests 6.2.1 Additional samples. Additional samples required because of failure of any sample(s) to pass the prescribed inspections shall be provided and inspec- ted at th
35、e expense of the supplier. 6.3 Preparation for delivery criteria. Criteria for the use of the proper level of packaging, packing, and marking shall be as specified in Section 5. 6.4 Advisory handling instructions for initiation, booster, and main charges. 6,4,1 Preparation of initiation and booster
36、charges involves the handling of normal lead styphnate, which is a heat and friction sensitive explosive. The lead azide base charge is also friction sensitive. Therefore, extreme care in all op- erations using these materials should be taken, and quantities on hand should be held to the minimum amo
37、unt required to maintain continuous production. Special care shall be exercised to prevent the solvent contents from decreasing below those specified in approved drawings by adding additional solvent when needed. Any composition that becomes dry around the edges of the container should be carefully
38、wet down before any attempt is made to scrape the sides of the container. If at any time the composition is spilled, it should be cleaned up immediately. All personnel handling these compositions must wear approved clothing and must work behind suitable barricades whenever possible. 6.4.2 All fixtur
39、es, equipment, benches, floors, etc.,shall be properly grounded to prevent accidental ignition due to static discharges, electrical arc- ing, or sparking. 6.4.3 The clear lacquer and butyl acetate thinner that is mixed with the lead styphnate confers a degree of resistance to explosion or ignition b
40、y impact or friction, or ignition by a combination of inpact and friction, However, it is emphasized that the resistance to explosion obtained by wetting in the prescribed marin-er is of a lower order than that obtained by water wetting. Butyl acetate is flammable and can produce ignitable vapqrs. 6
41、.4.4 All utensils and tools shall be kept clean and free of any dried charge. Empty dishes shall be placed in approved containers. 6.5 General safety precautions. The loading, assembly, and handling of explosives, ammunition, ammunition components, fuzes, detonators, primers, tracers, boosters, pyro
42、technics, etc., and subassemblies thereof, involve hazardous operations and therefore require suitable explosive safety precau- tions. Use of this specification shall not be construed as to relieve the contractor or manufacturer of responsibility for the safety of his operations. The following I 7 /
43、 16 -_I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-paragraphs list the minimum provisions that a contractor or manufacturer (loader) of these items should observe in order to fulfill his responsibility for safety. At Naval Ordnance Systems Comma
44、nd and other Government plants, these provisions are mandatory. Such other warnings and precautions pertinent to the operational effectiveness or safety during use or loading of the specified item, are included in the detail provisions of the specification. G. 5.1 All loading operations should be co
45、nducted in a neat and orderly manner. ci. 5.2 Safe equipment and methods should be utilized for transporting and handling explosives and loaded parts Where required, remote control barricaded handling equipment shall be used for explosive operations, such as mixing, pour- ing, weighing, charging, si
46、fting, drying, pressing, casting, and crimping, 6.5.3 Personnel handling detonators, primers, delay elements, leadins, boosters, and related parts that affect functioning, should, insofar as is prac- ticable, avoid using bare fingers or improper equipment to prevent damage, corrosion, or deteriorati
47、on from perspiration or other contaminating deposits. G. 5.4 The exposure of explosive materials and related parts should be so controlled as to minimize the absorption of moisture from the atmosphere or other sources. during loading and handling operations, 6.5.5 All explosives and completely or pa
48、rtially loaded items should be stored in suitable storage magazines located in accordance with the American Table of Distances (ATD) or other applicable safety standards; and, while in process, kept in safety lockers and chests if in loading rooms, or in adequate ready or service magazines located i
49、n accordance with intra-plant distances when outside of loading rooms. For Navy explosives loading plants, the pro- visions of the Armed Services Explosives Safety Board covering quantity-distance relations for explosives, shall apply, 6.5. ci Proper care should be exercised at all times tu protect personnel from accidents, fires, or explosions, and to
