1、- MIL-C-82903 W 9999Ob L99b279 508 MIL-E-82903(OS) 30 December 1994 SUPERSEDING WS 32972A 23 February 1990 MILITARY SPECIFICATION EXPLOSIVE, HNS-IV his specification is approved for use by the Naval Sea stems Command, Department of the Navy, and is available for use by all departments and agencies o
2、f the Department of Defense. 1. SCOPE 1.1 Scope. This specification establishes the requirements for the procurement of the organic compound 2,2, 4,4, 6,6 - Hexanitrostilbene, HNS-IV, which is known as small particle HNS explosive and is characterized by high thermal stability. 2. APPLICABLE DOCUMEN
3、TS 2.1 Government documents. 2.1.1 Specifications and standards. The following specifications and standards form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Speci
4、fications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS FEDERAL PPP-T-60 Tape, Packaging, Waterproof I i Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be ad
5、dressed to: Commander, Indian Head Division, Naval Surface Warfare Center, Standardization Branch (Code 8420), 101 Strauss Avenue, Indian Head, Maryland 20640-5035, by using the Standardization Document Improvement Proposai D Form 1426) appearing at the end of this document, or by sending a letter.
6、AMSC N/A FSC 1376 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MILES2903(0S) MILITARY MIL-T-248 Trinitrotoluene (TNT) STANDARDS MILITARY MIL-STD-129 Marking for Ship
7、ment and Storage MIL-STD-13 16 Fuze, Design Safety, Criteria for (niess otherwise indicated, copies of Federal and military specifications and standards are available from: Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 191 11-5094.) 2.1.2 Other Government docum
8、ents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation (see 6.2). NAVAL SEA SYSTEMS COMMAND (CAGE Code 5371 1) WS 50
9、03 HNS Explosive (Application for copies should be addressed to: Commander, Naval Surface Warfare Center, Indian Head Division (Code 8410P), 101 Strauss Avenue, Indian Head, MD 20640-5035.) CODE OF FEDERAL REGULATIONS 49 CFR 100-177 Transportation (Application for copies should be addressed to the S
10、uperintendent of Documents, U.S. Government Printing Offce, Washington, DC 20402.) 2.2 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicab
11、le laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Description. HNS-IV shall be crash precipitated from HNS-II which was recrystallized from HNS-I conforming to WS 5003. HNS-Il must be prepared by recrystallization from an organic solvent system (i.e., dimethy
12、lformamide - DMF certified) by the process approved by the contracting activity (see 6.2). HNS-IV shall be a superfine-particle-size material with a surface area of 5.0 to 25.0 square meters per gram (m2/g). HNS-I is a high explosive synthesized by a “one-step“ process from trinitrotoluene (TNT) (MI
13、L-T-248). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2 First article. Unless otherwise specified in the contract or purchase order (see 6.2), a sample shall be subjected to first article inspection (see 6.3) in accordance with 4.4. 3.3 Perfo
14、rmance. The mean flyer velocity range over which a pressed HNS-IV explosive charge can be detonated by the specified flyer assembly shall be less than or equal to 3.00 millimeters/microsecond (mm/p) and greater than or equal to 2.70 mm/ps when tested at ambient temperature. The standard deviation of
15、 the flyer velocity shall be less than or equal to O. 15 dp. This pressed HNS explosive charge shall have a density of 1.570 f 0.005 grams per cubic centimeter (g/cm3). When detonated, the output of the pressed HNS explosive charge shall produce, as a minimum, a hole through the witness plate with t
16、he back surface spalled. The test procedure shall be in accordance with 4.6.9 and the Appendix. 3.4 Physical and chemical properties. The physical and chemical properties for the HNS explosive shall be as specified in table I. Use of the material should be considered only after an evaluation of test
17、 data using HNS described by the limits of this specification. 3.5 Workmanship. The HNS explosive, including all materials entering into its manufacture, shall be formulated and processed in a manner to assure compliance with all requirements of this specification. Particular attention shall be dire
18、cted toward preventing foreign matter from entering the process during manufacture and packaging and exposure of bulk material, during handling and storage, to direct light for any prolonged period of time (see 6.8). This is very important since the presence of small quantities of impurities in the
19、HNS explosive, brought about through synthesis, handling, and storage, can seriously degrade its high temperature stability characteristics. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order (see 6.2), the contractor is re
20、sponsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified her
21、ein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance. All item
22、s shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibilit
23、y of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submissi
24、on of known defective material, either indicated or actual, nor does it commit the Government to accept defective material. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MILE82903(OS) irements, Requirement I Value 1. Vacuum stability: a. cubic ce
25、ntimeter per gram (cm3/g) for first 20 minutes. 3.0 max b. cmVg per hour for additional 2 hours 1.1 max 2. Surface moisture and volatiles, (percent (%) by weight) 0.05 max 3. Conductivity2 2 4. Insoluble particles (% by weight) 5. Chemical analysis (%): 0.1 rnax HNS 98.50 min HNBiB or DPF 0.65 max D
26、MF 0.5 max Wash solvents6 0.1 max Wotolysis products 4 7 6. Surface area (square meter per gram (mlg) 8 Test Paragraph 4.6.1 4.6.2 4.6.3 4.6.4 4.6.5 4.6.6 4.6.7 4.6.8 4.6.9 Specified values are volumes of gas at 0C and 760 mm pressure after evolution at 260 f 05C. The conductivity of the HNS-IV shal
27、l be less than the equivalent conductivity of a 1.0 parts per million (ppm) sodium chloride (NaCl) solution. HNBiB is hdtrobibenzyl; DPE is dipicrylethane. Total area calculated for photolysis products shall not be greater than twice the area found for the reference HNS-IV material. DMF is dmethylfo
28、rmamide. Any other wash solvents (methanol dioxane, etc.) used in the HNS-IV processing shall be less than 0.1%. When HNS-IV is ordered for any application, the contract shall specify the minimum and maximum surface area required for the application. Most applications will use a surface area between
29、 10 and 15 m2/g. Mean flyer velocity shall be between 2.70 and 3.00 mm/ps with a standard deviation of less than 0.15 mm/p when tested at ambient temperature. When detonated, the prksed charge (1.570 f 0.005 g/cm3) shall produce, as a minimum, a hole through the witness plate with the back surface s
30、palled. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-82903 999Ob L996283 T39 Inspection Vacuum stability MILE82903 (OS) Requirement Test Paragraph 3.4 4.6.1 4.2 Classification of inspections. The inspection requirements specified herein a
31、re classified as follows: Surface moisture and volatiles Conductivity Insoluble particles Chemical analysis Surface area Slapper test a. First article inspection (see 4.4) 3.4 4.6.2 3.4 4.6.3 3.4 4.6.4 3.4 4.6.5 4.6.6 4.6.7 3.4 4.6.8 3.4 4.6.9 b. Quaiity conformance inspection (see 4.5) 4.3 Inspecti
32、on conditions. Unless otherwise specified, ail inspections shail be performed in accordance with the test conditions specified in the applicable inspection paragraph. 4.4 First article inspection. A first article sample of HNS explosive material of sufficient amount for the tests of 4.6 shall be tes
33、ted by the contractor or other designated activity (see 6.2 and 6.3) to determine compliance with all the requirements of this specification. Any defect shall be cause for the rejection of the first article. 4.5 Quality conformance inspection. Quaiity conformance inspection shall be as specified in
34、table II. TABLE II. Oualitv conformance tests performed bv contractor, 4.5.1 Inspection lot. For the purposes of sampling, the term “lot“ shall mean “inspection lot“ or “manufacturers batch“, i.e., a quantity of material formulated or processed at one time under the same conditions. Unless otherwise
35、 specified in the contract or order (see 6.2) the quantity of material contained in an inspection lot of HNS explosive shall not be less than 0.5 kilogram (kg) nor greater than 10.0 kg. Each inspection lot of material shall be retained and identified as a separate batch of material after acceptance.
36、 When a new lot or batch is formulated or batch processed, that lot or batch shall sampled in accordance with 4.5.2 and tested in accordance with table II. (Sampling and disposition of unused sample material shall be in accordance with 4.5.2.1 and 4.5.2.2, respectively .) 5 Provided by IHSNot for Re
37、saleNo reproduction or networking permitted without license from IHS-,-,-4.5.2 Sampling. From 4.5.2.1 HNS-IV. Fifty-gram samples of HNS-IV explosive shall be selected at random from each inspection lot as follows: Through Number of Samples 0.5 2.0 2 Y I 2.1 6.0 3 6.1 I 10.0 I 4 4.5.2.2 Disposition o
38、f unused sample material. HNS explosive required for testing shall be considered expendable and shall be destroyed following completion of testing. 4.5.3 Rejection criteria. Failure of any specimen or sample of HNS explosive to meet the requirements specified herein shall cause rejection of the lot
39、of HNS explosive material from which it was taken. 4.6 Test procedures. The contractor shall furnish and maintain all necessary test equipment, facilities, and personnel for performing the tests of 4.6.1 through 4.6.9. The test equipment shall be adequate in quantity, and when definite requirements
40、are not specified, they shall be of sufficient accuracy and quality to permit performance of the tests. Adequate safety precautions (see 6.4 and 6.5), shall be taken during the processing, testing, and handling of the HNS explosive to protect personnel from accidents, fires, or explosions and to lim
41、it damage to equipment and processing areas. 4.6.1 Vacuum thermal stability test. The vacuum thermal stability (VTS) of an explosive is the volume of gas, at standard conditions, produced by the constant temperature, constant volume thermal decomposition of the explosive, using a specified apparatus
42、, heating period, and explosive weight, and an initial pressure of 2 mm Hg (266 pascals (Pa) or less. For this test, the weight of the explosive is 0.2 g, the test temperature is 260 i OSOC, the heating period is 2 hours and 20 minutes, the test chamber volume is approximately 40 cm3, and the standa
43、rd conditions are 1 atmosphere (0.101 MPa) and 0C. 4.6.1.1 Specimen preparation. The batch or lot of the candidate explosive chosen to provide the material for the specimen shall be dried for 16 hours at a pressure of 2 mm Hg (266 Pa) r less and ambient temperature prior to sampling. A representativ
44、e portion of the dried explosive shall be pressed or cast into a pellet by a procedure that will produce the density and physical properties required by the anticipated application. The pellet shall weigh between O. 19 and 0.21 g determined to the nearest milligram (mg). The density of another pelle
45、t made by the same procedure shall be determined at ambient temperature by the volumetric displacement method or a 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-82903 m 999990b L99b285 801 m method of equivalent accuracy. A specimen shall b
46、e prepared from each of three different batches or lots of the candidate explosive. 4.6.13 Test apparatus. The test apparatus shall conform to the specifications shown in figure 1 and shall be fabricated from a heat resistant glass such as Pyrex. The riser is shown after the excess glass has been re
47、moved and a leak-proof seal made. The solid area represents a typical position for the mercury at the start of the test. A heating block, controlled at 260 f OSOC, is required to heat the test chamber; riser and length of capillary tubing is designated “a“ in figure 1. 4.6.13 Volume measurement of t
48、he test chamber. Mark the position on the riser at which the leak-proof sed will be made. Determine the weight of water required to fill the test chamber to this mark. Convert this weight to a volume using the accepted value for the density of water at the temperature of the determination. Record th
49、is volume as “A“ (in cm). Determine the volumetric capacity of the capillary tubing, in cm3 per cm length, by weighing the amount of mercury required to fill a measured length of the tubing. Convert this weight to a volume using the accepted value for the density of mercury at the temperature of the determination. Record this volume as “B“ (in cm3 per cm length). 4.6.1.4 Test procedure. a. Place the specimen, prepared according to 4.6.1. i,
