1、MIL P-14067B (MU) 10 March 1967 SUPERSEDING 13 February 1963 MIL-P-14067A (MU) MILITARY SPECIFICATION POWDERS, METAL (FOR USE IN AMMUNlTION) 1. SCOPE 1.1 This specification covers three types of atomized metal powders and one type-of ellipsoidal metal powder. (See 6.3 or 6.5). 1-2 Classification . -
2、 The metal powders shall be of the following types a6 specified (See 6.1 and 6.2): Type I - Magnesium Powder, Atomized. Type II - Aluminum Powder, Atomized. Type III - Magnesium-Aluminum Alloy Powder 65/35, Atomized. .Type N - Magnesium Powderr Ellipsoidal. 2. APPLICABLE DOCUMENTS 2.1 The following
3、documents of the issue in effect on date of invitation for bids form a part of this specification to the extent specified herein. SPECIFICATIONS FEDERAL UU-P-236 - Paper, Filter, Analytical. STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes (ABC-STD-105) MI
4、L-STD-109 - Inspection Terms and Definitions. MIL-STD-123 - Marking for Shipment and Storage, MIL-STD-1233 - Procedures for Determining Particle Size, Particle Size Distribution and Packed Density of Powdered Materials. Provided by IHSNot for ResaleNo reproduction or networking permitted without lic
5、ense from IHS-,-,- _- flIL-P-14067B x-8 -W -mq70bpmb2b 2 MIL-P-14067B (MU) 10 March 1967 ML-STD-1234 - Pyroteohnios, Sampling, Inspection and Testing, PUBLICATDNS “American Society for Testing and Materials, ASTM Designation E 34-58 - Chemical Analysis of Aluminum and Aluminum Base Alloys, (Applicat
6、ion for copies should be addressed to the American Society for Testing Materials, 1916 Race Street, Philadelphia, Pennsylvania, 1910.3). (Copies of specifications, standards, drawings and publications required by contractors in coaneotion with speoific procurement functions should be obtained from t
7、he procuring activity or as direoted by the contracting officer, ) 2.2 Other publications. - The following document forms a part of this specifioation to the extent specified herein. Unless otherwise indicated, the issue in effeot on date of invitation for bids shall apply, Code of Federal Regulatio
8、ns 49 CFR 71-90 - Interstate Commerce Commission Rules and Regulations for the Transportation of Explosives and Other Dangerous Articles, (The Interstate Commerce Commision Regulations are now a part of the Code of . Federal.Regulations (1949 Edition and revisions) Available from the Superintendent
9、of DOcuments,Government Printing Officer, Washington 26, D. C. Orders for the above publication should cite “49 CFR 7!-90 (latest revision), II) 8, REQUIREMENTS 3.1 Shape 8.1.1 Type I, III, and IV. The shape of metal powders type I, III, and IV partioles shall be spheroidal when tested as specified
10、in 4.3.1 (see 6,3). 3.1.2 Type II, - The shape of metal powders atomized type II particles shall be spheroidal or granular when tested as specified in 4.3.1 (see 6.3), 3. X. 3 Type IV, - The shape of the ellipsoidal magnesium shall be spheroidal . with a maximum of 30 peroent oblong shape particles
11、when determined as specified in 4.3,17. (See 6.6). 2 W . - - . *i rn ! “ _ -1 - - . . - _ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10 March 1967 3.2 Chemical and physical properties. - The meta1,powders shall conform to the chemical and physic
12、al requirements as shown in Table I. 3.3 Granulation. - The metal powder shall conform to the granulation requirements as in Table II when tested as specified in 4.3.15, 3.4 Average particle diameter. The average particle diameter shall conform to the requirements in Table II when tested as specifie
13、d in 4.4.13. 4. QUALITY ASSURANCE PROVISIONS 4.1 General quality assurance provisions, - The supplier is responsible for the performance of all requirements specified herein, Except as otherwise epecified, the supplier may utilize his own or any other inspection facilities and services acceptable to
14、 the Government. Inspection records of the examinations and tests shall be kept complete and available to the Government as specified in the contract or order. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessa
15、ry to assure that supplies and services conform to prescribed requirements, Reference shall be made to Standard MIL-STD-109 in order to define the terms used herein, Inspection shall be performed in accordance with this specification and other specifications referenced in any of the contractual docu
16、ments. 4.1.1 Contractor quality assurance system, If the contractor desires to utilize a quality assurance system which is at variance with the quality assurance provisions of 4.2 and 4.3 and other documents referenced herein, he shall submit a written description of the system to the contracting of
17、ficer for approval prior to initiation of production. It shall include a description covering controls for lot . formation and identification, inspections o be performed, inspection stations, sampling procedures, methods of inspection and provisions for control and disposition of nonconforming mater
18、ial, The written description will be considered acceptable when, as a minimum, it provides the quality assurance required by the provisions of 4.2 and 4.3 and the other documents referenced herein. The contractor shall not be restricted to .the inspection station or the method of inspection listed i
19、n this specification provided that an equivalent control is included in the approved quaiity assurance procedure. In cases of dispute as to whether certain procedures of the contractors system, provide equal. assurance, the comparable procedure of this specification shall apply. The contractor shall
20、 notify the Government of, and obtain approval for, any change to the written procedure that affects the degree of assurance required by this specification or titherdocuments referenced herein, 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-“Y v)
21、O O s v) O 2 . x“ ! : i . . . . . . . . . . . . . . . . . o . o . a . -. o . o 8 . . . . . . . . . . . . . . . . . . e e . . om ON NQ) - “ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-K E m d . . . . . P . . . . , . ._. . O O s ES i. I . .r( F . .
22、 . . . . . . . . . . . . . . : 9 . k . Q) . * . 6: I I I . . . . . . . S be . . . . . . . . . . . . . .-. . . . . . . . . . .-. . 0-0 o o o -4 W 4 O v) a O I I I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-1406713 (MU) 10 March 1967 41.2 Su
23、bmimion of product, - At the time the completed lot of product is submitted to the Government for acceptance the contractor shall supply the following information accompanied by a certificate which attests that the information provided is. correct and applicable to the product being submitted: a, A
24、statement that the lot complies with all quality assurance provision8 of the approved current written desoription of the system, b, Quantity of product inspected. c, Results obtained for all inspection performed, d, Specifioation number and date together with an identification and date of changes. e
25、, Certificates of analysis on all material procured directly by the contractor when suoh material is controlled by Government specifications listed in any of the contractual documents. f, Quantity of items in the lot, g, Date submitted, The certificate shall be signed by a responsible agent of the c
26、ertifying organization and shall be accompanied by evidence of the agents authority to bind his principal. 4.1.3 Government verification, Using the contractors written quality aasurance procedure, when applicable, this detail specification and other contractual documents as a guide, the government i
27、nspector shall verify all quality assurance operations performed by the contraotor. Verification shall be in accordance with a or b, below, as applicable, the decision being the responsibility of the procuring activity, In either case, the inspector shall also ascertain, prior to acceptance, that al
28、l quality assurance provisions of other specifications referenced in any of the contractual documents have been complied with, Deviations from prescribed or. agreed upon procedures discovered by the government inspector shall be brought to the attention of the contractor, Disposition of the product
29、and remedial action shall be aB directed by the government inspector and, depending upon the nature of the deviation, may oomist of lot rejection, screening, resampliqg, reinetruction of the suppliers employees or other appropriate action. 8 Provided by IHSNot for ResaleNo reproduction or networking
30、 permitted without license from IHS-,-,-MIL-P-14067B (MU) 10 March 1967 Unless otherwise approved by the contracting officer, the inspection lot size of metal powders deliverable under the contract shall be not less than the smallest weekly estimate of quantities contractually scheduled for producti
31、on during the contract period nor more than the largest quantity contractually scheduled for delivery during any month of the contract period. Inspection lots shall be homogeneous and of a size convenient to the contractor. The classification of defects shall be in accordance with Standard. MIL-STD-
32、105. 4.2.2 Examinaion. - Sampling plans and procedures for the following classifications of defects shall.be in accordance with Standard MIL-STD-105 except that inspection for critical defects, when listed, shall be 100 percent. At the option of the procuring activity, AQLs and sampling plans may be
33、 applied to the individual characteristics listed using an AQL of O. 40 percent for each major defect and an AQL of 0.65 percent for each minor defect, 4.2.2.1 Drum sealed (see 5.1). Catemries Defects Method of Code No, . Critical: None defined - - Inspection Major: AQL O. 40 percent 101. .Weight of
34、 contents. e . . . . . . , . . Scale 102. Gasket missing or cover improperly closed e . . . . . e . . . : . . . Visual Minor: AQL O. 65 percent 201. Marking misleading or unidentifiable Visual O1001 01002 01003 4.2.3 Testing 4.2.3.1 Sampling lot, - A random sample of 8 containers shall be selected f
35、rom each lot. When lots are comprised of 10 containers oc less each container shall be sampled, -. 4.2.3.1.1 Preparation of composite for chemical test. - Approximately one ounce primary samples of material shall be removed from each of the ten containers in order to equal eight ounces, and if there
36、 are less than 8 containers, equal primary samples inmfficient quantity to equal 8 -ounces, shall be removed from each container. The individual primary samples shall then be combined in order to form a homogeneous .composite sample of eight ounces and subjected to the .tests specified in 4.3. If th
37、e composite sample fails to comply with any of the requirements specified, the lot shalI be rejected. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-14067B (MU) 10 March 1967 4,2.3,1.2 Sampling for granulation and particle size, - Each conta
38、iner shall be rolled and tumbled for ten minutes or until the metal powder is completely mixed in the container. Then a sample of approximately 8 ounces shall be removed from the container with a sampling thief, The granulation and particle size shall be determined on the sample thus obtain, Each co
39、ntainer shall be individually tested , If any sample fails to comply with the requirements of Table II and III the container shall be rejected, 4.3 Test methods and procedures, - The following test methods shall be as classified as major defects, 4,3,1 Shape, - Code number 02001. - A small portion o
40、f the sample shall be placed under a mioroscope and examined for conformance to paragraph 3,1, 4.,2 Volatile material at 105C, Code number 03001. - Approximately 5 gm, of the sample shall be weighed into a tared dish and heated in a oven for 3 hours at lO5OC, , then cooled and weighed. The loss in w
41、eight shall be calculated as permit volatile material at 105. 4.3.3 Carbides, .- Code number 04001. 4.3.3.1 Appaiatus, - Apparatus similar to that shown on figure 1 shall be used, 4.3,3,2 Reagent. - A O, 25 gm. portion of gelatin shall be dissolved in hot water, The solution shall be diluted to 500
42、ml. and 500 ml, of 95 percent ethyl alcohol and 1.25 gm, hydroxylamine hydrochloride shall be added, 4.3.3.3 Procedure. A weighed portion of 50 gm, of magnesium powder shall be added to the reaction flask (A), Approximately 50 gm. of cuprous chloride shall be transferred to test tube (B), Nitrogen s
43、hall be passed through the apparatus to remove the air and shall be continued throughout the determination. The test tube shall be lowered and 15 ml, of concentrated ammonium hydroxide (NH4OH) and 30 ml. of hydroxylamine hydrochloride reagent added to the reaction flask. The test tube shall be raise
44、d, the stopper inserted, 100 ml. of distilled water from dropping funnel (C) added the heater switched on, The mixture shall be heated in the reaction flask just to boiling. A -red or pink coloration of the cuprous ammonium chloride solution in the test tube indioates that the magnesium sample conta
45、ins more than O. 004 percent carbides, Should the cuprous ammonium chloride solution beoome blue, due to the introduction of air, it shall be decolorized with successive 5 ml, portions of hydroxylamine hydrochloride reagent until the blue color disappears, 10 I=“_ 7 - c .% - .- “ - - p- - - . . -. L
46、 - I 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-P-14067B (MU) 10 March 1967 4,3,9 Silicon as Si, - Code number 11001. The Silicon content shall
47、 be determined in accordance with the mixed acid method of ASTM designation E34-58. 4.3.10 Free metallic aluminum (eudiometer method), - Code number 12001. The free metallia aluminum shall be determined as specified in method 412.1 of Standard MIL-STD-1234, Exoept that the reaction flask shall conta
48、in 100 ml. 10 percent sodium hydroxide solution saturated with hydrogen. At Standard conditions a O, 33 to O, 34 gms, sample shall be used and calculated as follows: Peroent free metallic aluminum O. 0288V (P1-p) (O. 275A plus W (273 plus T) 1,28B) where: T = temperature of water jaoket in C, V = vo
49、lume of gas in buret, ml. P1 = barometric pressure, in mm, of mercury. P2 = vapor pressure of water at T, in mm, of mercury. W = weight of sample, gm, A = percent zino. B = percent silicon, O 4,3,11 Test applicable to Type III, magnesium-aluminum alloy powdered 66/36, atomized. 4.3,11,1 Aluminum. -Code number 13001, 4,3,11,1.1 Prep
