1、MIL-U-70q57 b W 7777906 0322477 7 W O MIL-U-7 O 4 57 (AR) 21 December 1983 MILITARY SPECFICATION URANIUM TETRAFLUORIDE (UFq), DEPLETED This specification is approved for use by the-U.S. Army Armament, Munitions and Chemical Command, and is available for use by all Departments and Agencies of the Dep
2、artment of Defense. 1. SCOPE 1.1 Scope. This specification covers depleted uranium tetrafluoride (UF4) which is intended to be reduced to depleted uranium metal for ordnance use. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. Unless otherwise specified, the fol
3、lowing specifications and standards of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation, form a part of this specification to the extent specified herein. SPEC IF I CAT IONS MILITARY MIL-A-48078 - Ammunition, Sta
4、ndard Quality Assurance Provisions, General Specification Por STANDARDS MILITARY MIL-STD-129 - Marking for Shipment and Storage FSC 6810 Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander
5、, US Arm Armament Research and Development Center, Attn. DRSMC-QA, Dover, New Arsey 07801 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. I I /- pt- THIS DOCUMENT CONTAINS .8 PAGES. I Provided by IHSNot for
6、ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-U-70Y57 68 m 7799706 0122500 T H MIL-U-70457 (AR) & 2.1.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this specification to
7、the extent specified herein. CODE OF FEDERAL REGULATIONS TITLE 10 CFR TITLE 49 CFR - Shipment of Uranium - Safe Handling Procedures of Uranium (Copies of specifications, standards, handbooks, drawings, and publications required by manufacturers in connection with specific acquisition functions shoul
8、d be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for prop
9、osal shall apply. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM-B-214 - Sieve Analysis of Granular Metal ASTM-B-329 - Apparent Density of the Refractory Powders, Test For Metals 2.3 Order of precedence. In the event.of a conflict between the text of this specification and the references cit
10、ed herein, the text of this specification shall take precedence. (Applications for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) 3. REQUIREMENTS 3.1 Composition. The depleted uranium tetrafluoride shall be a minimum of 98.7 p
11、ercent UF4 and shall comply with the maximum impurity contents specified in Table I. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-U-70457 68 m 7797706 OL2250L 1 m MIL-U-70457 (AR) TABLE I. UF4 COMPOSITION LIMITS ELEMENT- Iron (Fe)- Nickel (N
12、i) Copper (Cu) Sil-icon (Si) . Aluminum (Al) Manganese (Mn) Carbon (C) Chromium (Cr) Ammonium Oxalate Insolubles (AOI) U02F2 U02F2 + AO1 .-_ 235 MAXIMUM PERMISSIBLE AMOUNT 25 PPM 25 PPM 20 PPM 40 PPM 30 PPM 30 PPM 15 PPM . 15 PPM 0.3 Percent 1.0 Percent 1.0 Percent 0.3 Percent 3.1.1 Properties. The
13、depleted uranium tetrafluoride shall comply with the property requirements specified in Table II. .TABLE II. UF4 PROPERTY REQUIREMENTS PROPERTY REQUIREMENTS APPLICABLE TEST METHOD Bulk Density 175 + 35 pounds per 4.6.2 cubic foot Particle Size 100% shall pass through 4.6.3 an 8 mesh screen and 90% t
14、hrough a 40 mesh screen Moisture Content 0.03 percent, max by weight 4.6.4 3.2 First article inspection. This specification contains provisionas for first article inspection. Requirements- for the submission of first article samples by the contractor shall be as specified :in the contract. 3.3 Proce
15、ss control documents (PCD). The contractor shall prepare a process control document which shall include descriptions of all production processes, procedures and equipment used to manufacture and inspect the production material as stipulated in the contract. The descriptions shall identify, as a 3 Pr
16、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-U-70457 (AR) minimum, the sequence of operations and schematic line layouts, basic fabrication processes, fabrication equipment, controls associated with the fabrication processes (i.e. , times, tempe
17、rature, pressures, etc.), associated processes and controls, inspection procedures, and inspection equipment. The PCD shall be submitted in accordance with DI-P-1604. All initial and revised PCDs shall be submitted to DRSMC-QAT-A(D) for review and disposition. 3.4 Identification. Each drum of F4 sha
18、ll be marked with an identification number which indicates the F4 lot number and the sequential order in which the drums were filled. The contractor shall submit his identification numbering system to DRSMC-QAT-A(D) for approval prior to the start of production. 4. QUALITY ASSURANCE PROVISIONS 4.1 .
19、- Responsibility - for insEtion and standard quality ?P- - assurance provisions. Unless otheFGise specified herein or in the contract, the provisions of MIL-A-48078 shall apply and are hereby made a part of this detail specification. requirements specified herein are classified as follows: 4.2 Class
20、ification -I- of in2ections. I -.- The inspection a. First article inspection (see 4.3) b. Quality conformance inspection (see 4.4) 4.3 First _c_u_- article insp-ection. 4.3.1 -AL- Submission. The contractor shall submit a first ,article sample as designated by the Contracting Officer for evaluation
21、 in accordance with the provisions of 4.3.2. The first article shall consist of a single lot of UF4 (see 4.4.1) weighing between 25,000 - 30,000 lbs. This lot shall be produced by the contractor using the same production processes, procedures, and equipment as will be used in fulfilling the contract
22、-. All materials shall be obtained from the same sources of supply as will be used in regular production. 4.3.2 - Inspections - - to be Erformed. The first article sample (see 4.5.1.1) will be subjecEed-b- Government to any or all of the examinations or tests specified in 4.6 of this specification.
23、4.3.3 Rejection. See MIL-A-48078. - 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-U-70457 68 7797706 0222503 5 MIL-U-70457 (AR) 4.4 Quality conformance inspection. 4.4.1 Lot formation. A lot shall consist of UF4 produced by one manufacturer,
24、in accordance with the same specification or specification revision, under one continuous set of operating conditions, utilizing UF6 from a single manufacturer, and limited to a maximum weight of 300,000 lbs. A new lot shall be formed whenever the continuous production cycle is interrupted. Each lot
25、 of UF4 shall be identified as to the date and time of the production cycle start and finish. In addition, the identity of all UF6 cylinders contributing to each lot of UF4 shall be documented. 4.4.1.1 Regrouped lot. The formation of a regrouped lot shall be permitted in the event that a lot, or por
26、tion of a lot, fails to meet the requirements (Section 3.0) of this specification. A regrouped lot shall be formed by blending a non-conforming quantity of UF4 with another quantity of UF4 of known characteristics. The resultant UF4 shall be identified as a regrouped lot and shall be inspected for a
27、ll requirements of 3.0. 4.5 Testing. PRECAUTION WARNING This specification covers the sampling and testing of radioactive material. Accordingly, all applicable safety rules, regulations and procedures must be followed in handling and processing these materials. Regulations defining safe handling pro
28、cedures are contained in the U.S. NRC Regulatory Guides 8.9, 8.10, 8.11, 8.13, 8.15 and Title LO Code of Federal Regulations, Parts 19, 20, 4Q and other parts as applicable. 4.5.1 Sampling. 4.5.1.1 First article inspection. Representative samples shall be randomly selected from 50% of the drums of U
29、F4 from the first article lot and shall be tested in accordance with 4.6.1, 4.6.2, 4.6.3, and 4.6.4. 4.5.1.2 Quality conformance inspection. A representative sample shall be selected from each consecutively filled drum of UF4: each 24 hour cycle of continuous production and the last drum filled when
30、ever the production cycle is interrupted shall be tested in accordance with 4.6.1, 4.6.2, 4.6.3, and 4.6.4. Failure of any sample to meet the applicable requirements shall be cause The sample from the first drum filled at the beginning of 5 Provided by IHSNot for ResaleNo reproduction or networking
31、permitted without license from IHS-,-,-NIL-U-70Lt57 b M 777770b012250Ll 7 W MIL-U-70457 (AR) for 100% screening of all subsequently filled drums until 4 consecutive samples are tested successfully. The 100% screening shall only be performed with respect to those requirements which were not met initi
32、ally. In addition, 100% screening shall also be performed in reverse production sequence until a sample meets the applicable requirements or until a previously accepted drum of UF4 is reached. Testing at the beginning of each 24 hour cycle shall resume after 4 consecutive samples are found to meet t
33、he applicable requirements. Rejected drums of UF4 may be blended into a regrouped lot where possible in accordance with 4.4.1.1 and 4.5.1.2.1. The contractor may dispose of any untested samples after disposition has been finalized for a given lot of UF4. 4.5.1.2.1 Regrouped lots. Representative samp
34、les from eac-. regrouped lot shall be randomly selected from 20% of the drums in the lot and tested in accordance with 4.6.1, 4.6.2, 4.6.3, and 4.6.4. Failure of any sample to meet the applicable requirements shall be cause for rejection of the regrouped lot. - 4.5.2 Inspection equipment. The contra
35、ctor shall use commercial inspection equipment for al1 of the tests and examinations specified in 4.6. The contractor shall have the required equipment available, follow proper calibration methods and perform the testing in accordance with accepted operating procedures. All inspection equipment desi
36、gns shall be submitted for approval by the contractor in accordance with the terms of the contract. Submission shall be in accordance with DI-R-1714 with Addendum I. 4.6 Methods of inspection. 4.6.1 Chemical composition. Chemical analysis of each required sample shall be performed to determine compl
37、iance with the requirements of paragraph 3.1 and Table I. Samples shall be analyzed utilizing standard laboratory procedures and equipment approved by DRSMC-QAT- I (D) . 4.6.2 Bulk density. Each required sample shall be analyzed for compliance with the bulk density requirement of Table II. Bulk dens
38、ity shall be determined in accordance with the methods described in ASTM B-329, except that the required 16 mesh screen shall not be used. 4.6.3 Particle size. Each required sample shall be analyzed for compliance with the particle size requirements of Table II. Particle size shall be determined by
39、analysis of samples in accordance with the methods described in ASTM B-214. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-U-70457 68 7797706 0122505 7 MIL-U-70457 (AR) 4.6.4 Moisture content. Each required sample shall be analyzed for complia
40、nce with the moisture content requirement of Table II. Moisture content shall be determined by weighing a sample between 20 - 100 grams prior to and after heating it to 230 + 9OF for a sufficient duration of time to arrive at a stable condition. The heating cycle shall be repeated, as required, unti
41、l the difference in weight between successive . weighings is no more than .005% of the sample weight. Percent moisture content shall be calculated as follows: P = 100 (W-D)/W where: P = moisture content of sample, percent, W = weight of original sample, g. and D = final weight of dried sample, g. 5.
42、 PACKAGING 5.1 Packaging. UF4 shall be packaged in metal drums meeting the requirements of DOT 37P, DOT 17C, DOT 173 or DOT 17H. If DOT 17C, 17E, or 17H drums are used, they shall be polyethylene lined in the same manner as that required for DOT 37P drums. The contractor shall also comply with all a
43、pplicable Nuclear Regulatory Commission, Department of Energy, Department of Transportation, State and local regulations and licenses. 5.2 Marking. Marking shall be in accordance with MIL-STD-129 and Title 49 of the Code of Federal Regulations. 6. NOTES 6.1 Intended use. The UF4 ordered to this spec
44、ification is intended for use in reduction to depleted uranium metal of high purity which will be subsequently melted to produce a uranium alloy of specified purity for ordnance use. 6.2 Ordering data. See MIL-A-48078. 6.3 Submission of inspection procedures or equipment designs for approval. See MI
45、L-A-48078. Submit equipment designs, as required, to Commander, U.S. Army Armament Research and Development Center (ARDC) , ATTN: DRSMC-.QAT-I (D) , Doveir, NJ 07801. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-p- MIL-U-70457 b8 m 7999706 032i5
46、06 O m L MIL-U-70457 (AR) * a 6.4 Data requirements. Deliverable data required by this specification is cited in the following paragraphs: - PARAGRAPH DATA REQUIREMENTS APPLICABLE DID 3.3 Manufacturing Methods Report DI-P-1604 4.5.2 Quality Engineering Accept- ance Inspection Equipment Description Documentation DI-R-1714 Custodian: Pr epar i ng act i v i ty : Army-AR Army-AR (Project 6810-AB37) P I /- *U.S. GOVERNMENT PRINTING OFFICE: 1984-705-046/A0791 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
