1、MIL-I-12597C (PA) . 23 May 1975 Superseding 21 August i969 MIL-I-12597B (MU) - MILITARY SPECIFICATION IGNITER, BLASTING FUSE, FRICTION TYPE, M3A1 LOADING, ASSEMBLING AND PACKING This specification is approved for use by all Departments and Agencles of the Department of Defense. - 1. SCOPE 1.1 This s
2、pecification covers the loading assembling and packing for one type of initiating device designated as Igniter, Blasting Fuse, Friction Type, M3A1. 2. APPLICABLE DOCUMENTS 2.1 The following documents of-the issue in effect on date of invitation for bids or request for proposal, form a part of this s
3、pecification to the extent specified herein, SPECIFICATIONS FEDERAL QQ-2-325 - Zinc Plating (Electrodeposited) QQ-F-416 - Pyating, Cadmium (Electrodeposited) MILITARY *MIL-P- - Preservation, Methods of *MIL-A-48078 - Ammunition, Standard Quality MIL-F-20412 - Fuse, Safety (Bickford Type) Assurance P
4、rovisions, General Specification For FSC: 13751 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Inspectyon by Attributes (ABC-STD-105) and Testing MIL-STD-1234 - Pyrotechnics, Sampling, Inspection %(For meaning of asterisk (8) see paragraph 6.4) DRAW
5、INGS U.S. ARMY PICATINNY ARSENAL 8833721 - Igniter, Blasting Fuse, Friction Type, 8835011 - Box, Packing, Ammunition for Igniter, 8835012 - Carton, Packing, Ammunition for Igniter, M3Al, As semb ly Blasting Fuse, Friction Type, M3A1 Blasting Fuse, Friction Type, M3A1 (Copies of specifications, stand
6、ards, drawings and publications required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. ) s2.2 Other publications. - The following document forms a part of this specification to the extent spe
7、eified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. AMERICAN SOCIETY FOR TESTING AND MATERIALS ASTM Designation E300 - Industrial Chemicals, Recommended Practice for Sampling Application for copies should be addressed to
8、the American Society for Testing and Materials, 1916 Race Street, Philadelphia, Penn. 19103) . 3 . REQUIREMENTS 3.1 Material. - Materials shall be in accordance with applicable drawings and specifications, 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
9、S-,-,-3.2 Igniter. - The igniter shall comply with all requirements specified on Drawing (dwg. 1 883721 and with all requirements specified in applicable specifications . 3.3 tumbling test . The igniter shall not ignite when subjected to the 3.4 Moisture content of paper products. - The moisture con
10、tent of the tube, sleeve and paper Dackinn comnonents shall _. - 3.5 Functioning. - The igniter blasting fuse assembly . shall ignite the safety. fuse when tested. 3.6 Quick leak test. - The packed carton sealed in the barrier bag shall show no-evidence of air or water leakage when tested. 3.7 Workm
11、anship. - All parts and assemblies shall be fabricated arid loaded in a thorough workmanlike manner, and all manufacturing, processing, and assembly operations shall be correctly performed. sharp edges, unblended radii, surface defects , chips , dirt , grease and oil (except where specifically requi
12、red), corrosion products and other foreign matter. shall not be injurious to any part or assembly nor shall they be contaminated by the cleaning agent Exterior surface coatings shall be continuous except for a few light scratches not exposing base material. defined. They shall be clean and free of .
13、burrs, The cleaning method used All required markings shall be neat and sharply Required packing shall be dry. 4 . QUALITY ASSURANCE PROVISIONS 4 . 1 I Responslbity for Irispeotoh arid StandPd Quality Assurance Prodsidns . - Unles-s otherwise specified herein or in the contract, the provisions of MI
14、L-A-48078 shall apply and are hereby made a part of this detail specification. 4.2 Classification of inspections, - The following types of inspection shall be conducted on this item. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNo
15、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-, F . T I rl k rl c W I v) n rl s z a, R 3: E I O a F: r U r a v) Cu a- Co -3 N . .c a- ho 3 =r O k a c c w d. rl b cn Cu Cu a- a- =r a- N -3- a- mm -3 =a- N (u NN M M MM N M n n N n cd o c1 cd P m O O0 U N mrl J W cd u
16、 W m N W N Cu rn Grn 2% w o a, coa, Cok a, a aa rn w 0 al bi al a 8k 2 O k rnlcn4 m w E Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-L2577C 13 7797706 0274LLb 2 MIL-I-12597C (PA) 4.3.3 Rejection. (See MIL-A-48078 ) 4.4 Quality conformance in
17、spection a4.4. Inspection lot formation. - Inspecti n 1 ts shall comply with the lot formation provisions of MIL-A-48078. In addition, inspection lots of igniters shall contain: a. Parts of one kind from one manufacturer. b. Composition ingredients from not more than one supplier. batches produced u
18、nder one continuous Set of operating conditions, with each batch of the composition having been subjected to the same physical mixing process intended to make the batch homo- geneous . specified in the classification of defects and test tables, sampling plans for major and minor defects shall be in
19、accord- ance with MIL-STD-105, Inspection Level II. Equipment neces- sary for the performance of the inspections listed shall be in accordance with 4.4.4. c. Igniter and friction composition of one or more 4.4.2 Examination. - (See MIL-A-48078). Unless otherwise 6 Provided by IHSNot for ResaleNo rep
20、roduction or networking permitted without license from IHS-,-,-I a, P 7 R - rl (v =r =I- * . - E a rl Cd (vcucu h mmm M . . New O00 *=I-* 000 . e In v, O Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Cucu NCub MO MOM a =?A O0 IAInln a* Dvv O0 O00 .
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22、9999906 0294120 4 M ti c rlrlri *. . O00 O00 a d 5 LO ,- y. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-rl Lb O rl al al rl M z Ln cv a- =f * - . . . a 2 alE 4 -. -. 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without
23、license from IHS-,-,-MIL-I-12577C 13 777770b 027LI322 rl O rl lb k # E cucu mm CuCub MMM . a d 6i a, a 2 2 O Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Y s ln rl d 7 111 ruCUCU MMM 0 CUCU pc MM M e. =bR= O00 . 000 O00 rlrlrl bR In v3 O rl O1 Pro
24、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-14 rl 8 rl a (u =J. =J. * e . . rlrl rl cd 5 cdcd 7 mm rn (u(u t- MM M e. . .o . O0 O k a, Y d c ta d O Pl .c, d .E e Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
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26、d O Ji, k o ri ,cu =i- =P 1 . . . -. . : . . . : . qR O0 o I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ri IL O rl ho c d cd r% O w k O .rl k pc KI a p9 5 Q, 1-I k k cd p9 a a, cd PIX O am % rl drl cd(d 53 NN MM NNCC MMM . aa O0 =r=r O0 cd wa cd
27、a, Prn rl al 41 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-T MIL-I-12597C 13 W 7797706 027L1128 7 W I a a! rl cd a! v3 - CU r( a (u ;f =r * . rld dld i$ EE VIvJVIrn CUCUCUCU MMMM b+.b CUCUCU CUCUb MMM MMM . . *. . * O00 O00 0060 Provided by IHSN
28、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-I-12577C 13 m 777
29、770b 027i.1131 7 m MIL-I-12597C (PA) 1234 except that a 10 gram sample of each paper item shall be used and dried for 2 hours. 4.5.2 Determination of igniter composition 4.5.2.1 Charcoal. - Place three loaded igniter cups in a 30 milliliter beaker which has been dried at 100 degrees Centigrade (C.)
30、plus or minus 5 degrees C for one hour; cool in a desiccator, and weigh, Add to the beaker 20 milliliters of water. Heat the contents of the beaker to boiling and boil until the composition is completely leached from the igniter cups, Filter the contents of the beaker, using a tared Selas filterzing
31、 crucible Number 3010 or equivalent . Transfer the residue to the crucible quantitatively, leaving the cleaned igniter cups in the beaker. Wash the residue four times with hot water. Dry the crucible for one hour at 100 degrees C. to 105 degrees C., cool in a desiccator and weigh. Retain the filtrat
32、e for the determination of potassium chlorate and dextrin. Consider the gain in weight of the crucible as weight of charcoal in the sample. at 100 degrees C. plus or minus 5 degrees C. for one-half hour. Consider the loss in weight as the weight of the dry sample. Calculate the gain in weight of! th
33、e crucible as percentage of charcoal in the dry sample, Dry the beaker and leached igniter cups 4.5.2.2 Potassiun chlorate. - Dilute the filtrate obtained in 4.5.2.1 to 250 milliliters in an accurately calibrated volumetric flask. calibrated pipette to a 500 milliliter Erlenmeyer flask and dilute to
34、 approximately 150 milliliters. Add approximately 50 milliliters of 18N sulfuric acid. Stopper the flask with a rubber stopper equipped with a Bunsen valve and heat to almost the boiling point. Add 50 milliliters of a standardized solution of approximately 4 percent ferrous ammonium sulfate (Mohrs S
35、alt) by means of a calibrated pipette and boil the solution for 2 minutes. Cool the solution, loosen the valve and titrate the excess Mohrs salt with a standard 0.1N solution of potassium permanganate. Concurrently, condut a blank determination using the same quantities of the same reagents used for
36、 the analysis of the sample. Calculate the percentage of potassium chlorate in the sample as follows: Transfer a 25 milliliter aliquot with a Percentage of potassium chlorate = 20.43 (V-V)N W 21 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-1
37、2597C (PA) where : titration, ml. titration, ml. V = volume of potassium permanganate required for blank, v = volume of potassium permanganate required for sample N = normality of potassium permanganate solution W = weight of the sample, gms. 4.5.2.3 Dextrin, - Calculate the percentage of dextrin in
38、 the sample by subtracting from 100 the combined percentage of charcoal and potassium chlorate. ferrules, shall be subjected to the tumbling test for a minimum of 20 plus or minus two (2) minutes. shall be tested simultaneously. Following test, 100 percent examination shall be made t.o segregate tho
39、se igniters which ignited during tumbling. plywood with inside dimensions 36 inches long by 36 inches wide by 24 inches deep, and with four (4) baffles 9 inches wide by i8 inches deep centered in and perpendicular to the four (4) walls. The box with bottom canted at 72 plus or minus two (2) degrees
40、from the horizontal shall be rotated at nine (9) plus or minus one (i) revolutions per minute. 4.5.4 Functioning. - A piece of safety fuse, complying with specification MIL-F-20412, 3/16 inches by 3 Inches shall be inserted not less than 3/4 of an inch into the igniter until firmly held in place by
41、the ferrule prongs. The igniter, with the safety fuse in place, shall be assembled to the applicable test fixture specified in 4.4.4, and the igniter shall be functioned by pulling the friction wire. Any igniter which fails to ignite the safety fuse shall be classed defective. 4.5.5 Quick leak test.
42、 - (Vacuum Differential Method) - The filled and sealed packages, after conditioning at ambient temperature (70 plus or minus 5 degrees F.) for at least four (4) hours, shall be tested for leakage by submerging in water contained in a vacuum vessel. A vacuum differential of 216 m. C8 1/2 inches) of
43、mercury from ambient conditions shall be drawn and held for 30 seconds min. while observing for leakage of air. A steady stream or recurring succession of bubbles from any surface or seam shall be cause for rejectlon. Where there is no emission of bubbles observed, the package shall be dried, opened
44、 and inspected. Evidence of water within the barrier, or on the carton shall also be cause for rejection. 4.5.3 Tumbling. - The igniter blasting fuses, without Approximately 500 igniters The tumbler box shall be made of 3/4 inch 22 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
