1、y- 33-17 MIL-G-82673(33) 23 November 1977 MILITARY SPEIFICATION GRAPHITE, NATURAL, FWDERED, TECHNICAL This specification has been approved by the Naval Sea Systems Comd, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1.1 Scope. This spe
2、cification covers the requirements for the procurement of one tme of ground Ceylon-type graphite. 2. APPLICABLE DOCUMENTS 2.1 Issues of docmnfs. The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent spec
3、ified herein. SF)EIFICATIONS Military IVS 4503B Rocket bbtor, hk 56 Mods O, 1 ULATIONS 49 CFR 100-199 (The Code of Federal Regulatioiis is available from the Superintendent Transport at ion of Documents, U.S. Government Printing Office, Washington, Dc 20402. Orders should specify “49 CFR 100-199 (la
4、test revision)“), NATIONAL MOTOR l?FEIGl! IXAFFIC ASSOCIATION, INC., AGENT National Motor Freight Classification (Application for copies should be addressed to American Trucking Associations, Attn: Tariff Order Section, 1616 P Street, Washington, E! 20036). . UNIFORM CLASSIFICATICN CObNIITEE, AGrENT
5、 Uniform Freight Classification (Application for copies should be addressed to the Uniform Classi- ficiation Comnittee, Room 1106, 222 South Riverside Plaza, Chicago, IL 606%). (Technical society and technical association specifications and standards are generally available for reference from librar
6、ies. are also distributed among technical groups and using Federal agencies). They 3.1 General material requirements. The material supplied under this The contractor specification shall conform to the following requirements. shall We no changes in processing techniques or other factors affecting the
7、 quality of the product without prior approval of the procuring activity. 3.1.1 Mark 56 lbd 2 Dual Thrust Rocket Motor procurement. When the graphite is procured for the Mk 56 Mod 2 Dual Thrust Rocket Motor, the requirements for change of material, material vendors, processes or equiprent shall be t
8、hose in WS 4503 paragraph 3.1.3 (6.2.1). 3.2 - Form. The material shall be a dry powder, free from any indications of caking or lumping. 3.3 Composition. The material shall be Ceylon-type natural occurring 3.4 Color. The material shall be grey-black in color. graphite consisting of a single element
9、carbon. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.5 Chemical and mechanical properties. The material shall conform to the following properties: Max 5 - Min - a. Ash, wt% - b. carbon, wt% 95 I sieve analysis, -10 mesh 149pm 99 100 -200 mesh
10、74pm 65 90 -325 mesh 44pm 35 60 c. Particle size distribution by 3.6 Workmanship. The material shall be free frch all impurities and other defects that could adversely affect its performance. material shall be uniform in quality and shall be manufactured in accordance with standard manufacturing pro
11、cedures of the industry. The 4. QUALITY ASSURANCE PVISIOIUS 4.1 Responsibility for inspection. Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. Ekcept as otherwise specified in the contract, the contract
12、or may use his om or any other facilities suitable for the perfomce of the inspection requirements specified herein unless disapproved by the Govemnt. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to ass
13、ure that supplies and services conform to prescribed requirements. 4.2 Inspection conditions. Unless otherwise specified (see 6.2), all inspections shall be performed under the following conditions: a. Temperature: Rom ambient 18 to 35OC (650 to 95OF) b. Altitude: Normal ground c. Vibration: None d.
14、 Humidity: Rom dient to 95 percent relative, mixE I. per 4.4.1 shall be subjected to the tests and examinations of TBLE I. Each sample selected 4.4.3.1 Ash content. The ash content shall be determined by the method of ASCM C 561 using material dried in accordance with ASIM C 562. . 4.4.3.2 Carbon co
15、ntent. The carbon content shall be calculated by subtracting the ash content from the dried sample weight. 4.4.3.3 Sieve analysis. The particle size distribution of the material by sieve analysis shall be determined in accordance with OD 18876, except the sample size shall be 25 grams (g) neighed to
16、 the nearest 0.01 g; the sieve series stack order shall be 100, 200, 325; and the sieve series stack shall be shaken for 45 minutes. 4.4.4 Rejectioii Criteria. If any of the individual samples, selected in accordance with 4.4., do not conform to the requirements specified herein, or the material is
17、otherwise contaminated, the lot shall be rejected. TABLE I. QUALITY ONFORIANCX INS?ECTION . Test Requirement Test Method Packaging and marking Section 5 Visual Form 3.2 Visua Color 3.4 Visual Ash 3.5.a 4.4.3.1 Carbon content 3.5.b 4.4.3.2 Particle size sieve analysis 3.5.c 4.4.3.3 Workmanship 3.6 Vi
18、sual 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-5. PACKAGING 5.1 Packaging and packing. Unless otherwise specified in the contract (see 6.2), packaging and packing shall be level C. 5.1.1 Level C. Unless otherwise specified in the contract (se
19、e 6.2), packaging and packing of the graphite shall be in accordance with standard comrcial practice applicable to the type of material. The packaging and packing shall be of such construction and mterials that the contents will be adequately protected against loss or con- tamination. (see 6.2). Nat
20、ional Motor Freight Classification or to rules of other carriers applicable to the mde of transportation. Container size shall be as specified in the contract Containers shall conform to Uniform Freight Classification, 5.2 hlarking. In addition to any special marking required by the contract (see 6.
21、2), each container shall be marked in accordance with MILSTD-129 and Code of Federal Regulations 49 CF? 171-179. Marking a. b. C. d. e. f. g. h. 6. shall include, but not be limited to, the following infomtion: Title, number and date of this specification. Manufacturers name and location. Material t
22、rade name. Net weight and volume. ht number, batch number(s), and date of manufacture. Storage conditions. Toxicity precautions, if applicable. Contract number. NOTES 6.1 Intended use. The graphite is intended to be used as a propellant ingredient for the Mark 56 hbd 2 Dual Thrust Rocket MAor or oth
23、er rocket motor applications. 6.2 Ordering data. Procurement documents should specify the f olloving : 6.2.1 Procurement requirements. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-2673 b W 9999906 01232LLi 3 W MIGG-82673( CS) a. Title, num
24、ber and date of this specification. b. Quantity required. c. Place of delivery. d. e. Inspection conditions when other than as specified (see 4.2). Packaging requirements if other than as specified (see 5.1). f. Size of container required (see 5.1.1). g. h. Any special marking required (see 5.2). Ch
25、anges to mterial, material vendors, processes and equipment (see 3.1.1). 6.2.2 Contract data requirements. Item of deliverable data required by this specification are cited in the following paragraph herein : Paragraph Data Requirement Applicable DID* 4.3 Certificate of compliance DI-E-2121 *DIDs (D
26、ata Item &scription/DD Form 1664) for the above requirements are documented in the applicable ADL (Authorized Data List). will be delivered as identified on completed (numbered) DIDs when specified on DD Fom 1423 (Contract Data Requirements Lists) and incorporated into applicable contracts. Such dat
27、a 6.3 Rounding-off specified limits. The following applies to all ecified limits in this srnification. For umses of detemiiilina &nformance with these requirements, an obse&ed-value or a calculated value shall be rounded off “to the nearest unit“ in the last right- hand place of figures used in expr
28、essing the limiting value, in accord- ance with the rounding-off method of ASTM E 29, Standard Recomnended Practice for Indicating Which Places of Figures are to be Considered Significant in Specified Limiting Values. 6.4 Toxicity and safety. The material is considered by CUABHA as a nuisance dust w
29、ith a threshold limit of 15 million parts per cubic foot. Avoid inhalation of the material. 6.5 Ehvironmental stability. The material shall be able to withstand storage in well sealed containers in a clean dry location at ambient temperature. The shelf life of the material shall be at least five yea
30、rs when stored in original closed containers, 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Custodian: EAVY - OS *US. GOVERNMENT PRINTING OFFICE: 1977 - 730-122/96 7 Preparing Activity : NAVY - W Project Number: 6810-NA46 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
