1、INCH-POUNDMIL-DTL-3301D 08 October 2008 SUPERSEDING MIL-C-3301C 15 September 1970 And Amendment 2 26 April 1995 DETAIL SPECIFICATION COMPOUND, ASPHALTIC, HOT-MELT (CAVITY LINING) This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1. Scope.
2、 This specification covers a hot-melt asphaltic compound for coating the inner walls of metal cases prior to filling with explosives. 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other s
3、ections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specificatio
4、n, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited i
5、n the solicitation or contract. DEPARTMENT OF DEFENSE STANDARDS MIL-STD-129 Military Marking for Shipment and Storage MIL-STD-147 Palletized Unit MIL-STD-286 Propellants, Solid: Sampling, Examination and Testing DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-DTL-248 Trinitrotoluene (TNT) MIL-DTL-512 Alumi
6、num Powder, Flaked, Grained, and Atomized Comments, suggestions, or questions on this document should be addressed to DEPARTMENT OF THE NAVY, Indian Head Division, NSWC, Code E11G3, Document Control, 4072 North Jackson Road, Suite 106, Indian Head, MD 20640-5115 OFFICIAL BUSINESS, or emailed to aman
7、da.pennnavy.mil. Since contact information can change, you may want to verify the currency of this information using the ASSIST Online database at http:/assist.daps.dla.mil. AMSC N/A FSC 8030 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-33
8、01D 2 MIL-M-14745 Minol-2 Composition MIL-E-22267 Explosive Compositions, HBX Type (Copies of these documents are available online at http:/assist.daps.dla.mil/ or from the Standardization Documents Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.2.2 Other Government doc
9、uments, drawings, and publications. This section is not applicable to this document. 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents are those cited in the solicitation or co
10、ntract. AMERICAN SOCIETY FOR QUALITY (ASQ) ANSI/ASQ Z1.4 Sampling Procedures and Tables for Inspection by Attributes (Copies of ANSI/ASQ Z1.4 are available online at www.asq.org or ASQ Distribution Center, 5131 S. Third Street, Milwaukee, Wisconsin 53207-6028.) AMERICAN SOCIETY FOR TESTING AND MATER
11、IALS (ASTM) ASTM D5 Test Method for Penetration of Bituminous Materials ASTM D36 Standard Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus) ASTM D92 Test Method for Flash and Fire Points by Cleveland Open Cup ASTM D140 Standard practice for sampling Bituminous Materials (Copies of
12、 these documents are available online at http:/www.astm.org or from the American Society for Testing and Materials Customer Service, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) 2.3 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between
13、 the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample (s
14、ee 6.3) shall be subjected to first article inspection in accordance with 4.2. A first article inspection shall be required if : a. There has been more than 12 months since production of the latest accepted lot, b. There has been a relocation of the production facility, c. There has been a major cha
15、nge in personnel or procedures, or Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3301D 3 d. There has been a change in the source of supplies for the materials used in the manufacture of the asphaltic compound. . 3.2 Materials. The material
16、s used in the manufacture of the asphaltic compound shall be of acceptable quality, suitable for the purpose intended, and shall be such as to produce a compound which shall be easily heat liquefiable but which does not flow at temperatures below the softening point. The compound shall contain no vo
17、latile solvents. 3.3 Heat resistance. When tested as specified in 4.4.2, a dried film of the compound on a metal panel shall not sag or flow when heated by immersion in a glycerin bath maintained at 109 l C (228 2 F) for 1 hour. 3.4 Acid resistance. When tested as specified in 4.4.3, a dried film of
18、 the compound on a metal panel shall withstand the action of picric, sulfuric, nitric, and hydrochloric acids for 6 hours without disintegration, browning, or dulling. There shall be no etching of the metal underneath the compound. 3.5 Water resistance. When tested as specified in 4.4.4, a dried fil
19、m of the compound on a metal panel shall withstand immersion in distilled water for 18 hours without blistering, whitening, and not more than a slight dulling. 3.6 Flexibility. A dried film of the compound on a metal panel shall show no chipping, scaling, or cracking when tested as specified in 4.4.
20、5. 3.7 Chemical requirements. The asphaltic compound shall conform to the chemical requirements of Table I when tested as specified therein. TABLE I. Chemical requirements. Requirement Percent maximum Test paragraph Acidity, as H2S040.01 4.4.6 Alkalinity, as NaOH 0.01 4.4.6 Insoluble matter in tolue
21、ne 1.00 4.4.7 Ash 1.00*4.4.8 Manganese 0.10*4.4.9 Lead 0.04*4.4.10 *Quality conformance tests for manganese and lead shall not be required when the ash content is less than 0.04 percent. 3.8 Softening point. The softening point of the asphaltic compound shall be not less than 113 C (235 F) when test
22、ed as specified in 4.4.11. 3.9 Penetration. The asphaltic compound shall conform to the following penetration values when tested as specified in 4.4.12: 200gm/60 sec. /0 C (32 F) 15 min. 100gm/ 5 sec. /25 C (77 F) 25 min. 50gm/ 5 sec. /46 C (115 F) 80 max 3.10 Viscosity. The viscosity of the asphalt
23、ic compound shall be not more than 700 centipoises at 149 C (300 F) when tested as specified in 4.4.13. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3301D 4 3.11 Flash point. The flash point of the asphaltic compound shall be not less than
24、 260 C (500 F) when tested as specified in 4.4.14. 3.12 Reactivity. When subjected to the vacuum stability test-as specified in 4.4.15, the reactivity of the asphaltic compound with TNT , HBX-1, HBX-3, H-6, and tritonal explosives shall not exceed 3.0 milliliters of gas over and above that generated
25、 by the controls when the test is conducted at 100 0.5 C for 40 hours. The reactivity of the asphaltic compound with Minol-2 explosive shall not exceed 3.5 milliliters of gas over and above that generated by the controls when the test is conducted at 90 0.5 C for 40 hours. The explosives tested with
26、 the asphaltic compound in the vacuum stability test shall be in accordance with the following: TNT shall conform to MIL-DTL-248, Type I; HBX-1, HBX-3, and H-6 shall conform to MIL-E-22267; Minol-2 shall conform to MIL-M-14745; Tritonal shall consist of 80 3 percent by weight TNT, MIL-T-248, Type I
27、and 20 3 percent by weight aluminum powder, MIL-DTL-512, Type 3, Class 7. 3.13 Workmanship. The asphaltic compound ingredients shall be processed in a manner that will produce the high quality material necessary to meet the requirements of this specification. The finished product shall be homogeneou
28、s, free from a foam like texture on its surface, or other defects that could adversely affect its intended use. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.2) b. Quality conformance insp
29、ection (see 4.3) 4.2 First article inspection. The first article inspection shall consist of a review for approval of the submitted manufacturers reports and subjecting the first article sample (4.2.1) to examination and testing to determine conformance to the requirements of this specification. 4.2
30、.1 First article samples. Unless otherwise specified in the contract or purchase order (see 6.2), the following applies to the first article. A test report from the manufacturer or a commercial laboratory showing the formula number of the compound, formulation and composition of the asphaltic compou
31、nd including the identification of ingredient samples by specific chemical name in addition to trade name, and laboratory data showing complete test results required by this specification except reactivity shall be forwarded to the procuring activity before first article samples are supplied (see 6.
32、3). The first article samples shall consist of 10 pounds of compound and 1 pound of each ingredient used. The samples shall be forwarded to the agency responsible for first article testing as designated in the solicitation or contract (see 6.3). The samples shall be plainly identified by securely at
33、tached durable tags or labels marked with the following information: (a) Sample for first article inspection (b) COMPOUND, ASPHALTIC, HOT-MELT (CAVITY LINING) (c) Name and address of manufacturer (d) Location and identity of the plant which produced the samples (e) Manufacturers identification Provi
34、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3301D 5 (f) Date of manufacture (g) Submitted by (name) (date) for first article inspection in accordance with the requirements of Specification MIL-C-3301under authorization of (reference authorizin
35、g letter) (see 6.3). 4.2.2 Retention of data. The supplier shall retain test data accumulated from performance of quality conformance inspections. Data collected during a 12-month interval shall be forwarded to the procuring activity at the end of such 12-month interval. The purpose of the collectio
36、n and submittal of test data is to show continuing conformance of the product with the requirements of this specification. Failure to submit this periodic feedback of test data shall result in loss of first article approval for that product. In addition, the supplier shall immediately notify the pro
37、curing activity at any time during the 12-month period when his product no longer meets the first article requirements or when production of the suppliers product has been terminated. 4.3 Quality conformance inspection. For each inspection lot of material submitted for acceptance, quality conformanc
38、e inspection shall consist of all the examinations and tests except reactivity (4.4.15); and except 4.4.9 and 4.4.10 when the ash content (4.4.6) is less than 0.04 percent (see Table I). 4.3.1 Inspection lot. An inspection lot shall consist of the asphaltic compound produced by one manufacturer, at
39、one plant, from the same materials, and under essentially the same manufacturing conditions provided the operation is continuous. In the event the process is a batch operation, each batch shall constitute a lot (see 6.4). 4.3.2 Sampling. 4.3.2.1 For examination of preparation for delivery. Sampling
40、for examination of preparation for delivery shall be conducted in accordance with ANSI/ASQ Z1.4. 4.3.2.2 For tests. A 10 pound sample shall be taken at random from each lot in accordance with ASTM D140. 4.3.3 Inspection procedure. 4.3.3.1 For tests. The method of withdrawal and preparation of test s
41、amples shall be in accordance with ASTM D140. Failure of any test sample to meet any test requirement shall be cause for rejection of the lot represented. Containers which have samples removed shall be shipped as part of the lot if the lot is accepted. 4.3.3.2 For examination of preparation for deli
42、very. Using the sample of filled containers selected in 4.3.2.2, adjust the sample to conform to ANSI/ASQ Z1.4, Inspection Level I (see 6.2.1). The sample unit shall be one filled and closed shipping container. Sample containers shall be examined for compliance with all requirements of this specific
43、ation in regard to contents, closure, damaged or leaking container, improper container, and marking. 4.3.3.3 Examination of product. The asphaltic compound shall be examined for conformance with the requirements of this specification with respect to material and workmanship. 4.4 Test methods. Provid
44、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3301D 6 4.4.1 Values. Unless otherwise specified, the values specified in Section 3 apply to the average of the results obtained from duplicate determinations for each particular test. 4.4.2 Heat resi
45、stance. 4.4.2.1 Preparation of test panels. Solvent-cleaned, mechanically-polished plain carbon steel panels, 6 by 4 inches, by approximately 1/8 inch thick shall be used. Coat the panels by dipping them into the molten compound which shall be maintained at 150 to 160 C (302 to 320 F). Leave the top
46、 1 inch of the panel uncoated. The film thickness should be approximately 1/16 inch on each side of the panel. Suspend the panel with the uncoated portion up and allow to cool to room temperature. Trim the excess compound from the bottom edge of the panel with a hot sharp knife. 4.4.2.2 Procedure. S
47、uspend a panel, prepared as described in 4.4.2.1, in a bath of reagent-grade glycerin at 109 l C (228 2 F) for 1 hour so that the uncoated end of the panel is uppermost and one half of coated portion is submerged. Remove the panel and cool by immersion in cold water. Examine the film for sag or flow
48、. A slight surface displacement at the glycerin line is permissible. 4.4.3 Acid resistance. Place a panel, prepared as described in 4.4.2.1, on a flat horizontal surface. Place on the coating at different places drops of the following solutions: Saturated picric acid Sulfuric acid, sp. gr. 1.30 Nitr
49、ic acid, sp. gr. 1.22 Hydrochloric acid, sp. gr. 1.09 Allow the acids to remain in contact with the coating for 6 hours while the temperature is maintained at approximately 21 C (70 F), covering the drops with small watch glasses in order to prevent evaporation. Remove the acids by washing with cold water and dry the film at room temperature for 1 hour. Examine the areas previously in contact with the
