1、MIL-PRF-274 02C O1 October 1997 Superseding 27 May 1969 MIL-P-27402B PERFORMANCE SPECIFICATION PROPELLANT, HYDRAZINE - uns-DIMETHYLHYDRAZINE (50% N2H4 - 50% UDMH) This specification is approved for use by all Departments and Agencies of the Department of Defense 1. SCOPE 1.1 Scope. This specificatio
2、n covers the requirements for hydrazine - uns-dimethylhydrazine (N2H4 - UDMH) propellant. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents in other sections of this specification
3、 or recommended for additional information or as examples. While every effort has been made to ensure the completness of this list, document useis must meet all specified requirements documents cited this specification, whether or not they are listed. 2.2 Government documents. are cautioned that the
4、y in sections 3 and 4 of 2.2.1 Specifications, standards, and handbooks The following specifications 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 Specificatio
5、ns and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). SPEC I FI CAT IONS DEPARTMENT OF DEFENSE MIL-PRF-25604 - Propellant, uns-Dimethylhydrazine MIL-PRF-26536 - Propellant, Hydrazine MIL-PRF-27401 - Propellant Pressurizing Agent, Nitrogen MIL-PRF-27407 - Propellant P
6、ressurizing Agent, Helium Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Code (68) SA-ALC/SFSP, 1014 Billy Mitchell Blvd/STE 1, Kelly AFB TX 78241- 5603, by using the standardization Document I
7、mprovement Proposal (DD Form lA76i annearinn at thn and nf +hic dnriimnnt nr hv lnttnr AMSC N/A FSC 9135 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Y Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-2740
8、2C = 9999906 2054332 757 D MIL-PRF-27402C (Unless otherwise indicated, copies of the above specifications, and standards are available from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia PA 19111-5094). 2.3 Non-Government publications this document to the exte
9、nt specified issues of the documents which are DoD the DoDISS cited in the solicitation. of documents not listed in the DoDISS the solicitation (see AMERICAN SOCIETY ASTM D 2276 ASTM E 29 (Application for 6.2). FOR - - TESTING AND Test Method The following documents form a part of herein. Unless oth
10、erwise specified, the adopted are those listed in the issue of Unless otherwise specified, the issues are the issues of the documents cited in MATERIALS (ASTM) for Particulate Contaminant in Aviation Fuel by Line Sampling (DoD adopted) Practice for Using Significant Digits in Test Data to Determine
11、Conformance with Specifications (DoD adopted ) copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia PA 19103-1187.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text
12、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 Chemical and physical properties. The propellants, hydrazine conforming to MIL-P-26536 and uns-dimethylhydrazine conform
13、ing to MIL-P-25604, shall be used in this propellant mixture. The chemical and physical properties of the propellant mixture shall conform to those listed in table I when tested according to the applicable test methods. 3.2 Limiting values. The following applies to all specified limits in this speci
14、fication: For purposes of determining conformance with these requirements, an observed value or a calculated value shall be rounded off to the nearest unit” in the last right-hand digit used in expressing the specification limit according to the rounding-off method of ASTM Practice E 29 for using Si
15、gnificant Digits in Test Data to Determine Conformance with Specifications. 3.3 Filter. A filter with a 10-micrometer nominal and 40-micrometer absolute rating shall be installed between the manufacturers plant system and the container to be filled for delivery. 3.4 Qualitative. The propellant shall
16、 be colorless, homogeneous liquid when examined visually by transmitted light. 4. VERIFICATION 4.1 Classification of inspections. The inspections shall be classified as quality conformance inspections. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
17、,-MIL-PRF-27402C 4.2 Quality conformance inspection. Unless otherwise specified (6.2),each filled shippinq container shall be considered a lot and shall be sampled. in 4.3.1 for conformance to 3.4 and to the tests described in Table I for conformance to the requirements specified in Table I. Each sa
18、mple- shail be subjected to the visual examination described TABLE I. Chemical and Dhvsical DroDerties. Properties Hydrazine (percent by weight) UDMH (percent by weight) Water (percent by weight) Total hydrazine, UDMH, and amines (percent by weight) Particulate (milligrams per liter) Limits 51 f 0.8
19、 47 min 1.8 max 98.2 min i0 max Test Paragraph 4.3.2 4.3.2 4.3.2 4.3.2 4.3.3 4.2.1 Sample. A sample consists of not less than 600 mL of propellant. Unless otherwise specified, quality conformance tests shall be made on the sample of propellant taken directly from the shipping container. When require
20、d, the sample shall be forwarded to a laboratory designated by the procuring activity for subjection to the quality conformance tests specified herein. The bottle intended for sampling shall be specially cleaned and handled according to the procedure described in 4.3.3 4.2.2 Rejection. When any samp
21、le of the propellant tested in accordance with 4.3 fails to conform to the requirements specified herein, the entire lot represented by the sample shall be rejected. 4.3 Test methods. 4.3.1 Examination of product. The propellant shall be visually examined while performing test specified in 4.3.3 to
22、determine compliance with the requirement as specified herein. Examination to ensure that the material conforms to 3.4 shall be conducted after the sample has been transferred to the 500 mL graduated cylinder. 4.3.2 Hydrazine - uns-dimethylhydrazine assay and water. The propellant and water content
23、of the sample shall be determined by the following method. 4.3.2.1 Gas chromatographic method. 4.3.2.1.1 Gas chromatographic column. The column to be used for this analysis is the J for example, N2H4 MIL-P-26536 and UDMH MIL-P-25604. The composition of the mixture should be approximately 51 percent
24、N2H4, 48 percent UDMH, and one percent H20. Weigh each component to 0.1 milligram. The order of addition in the standard preparation shall be N2H4, H20, and finally UDMH. Calculate the actual composition as follows: 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
25、se from IHS-,-,-MIL-PRF-27402C MIL-PRF-27402C WbMH x total weight %UDMH= ( wH20 x 100) + ( W, 24 x %H, O) + (wUDMH x %H O) %H20= total weight where WN2H, WUDMH, wH20 = the weight of each component. wN,H, X %H,o WuDMH X%H20 = the weight of NzH4 times the percent H20 determined in = the weight of UDMH
26、 times the percent H20 determined the assay as per MIL-P-26536. in the assay as per MIL-P-25604. Analyze the referenced standard in occording to 4.3.2.1.2. Calculate the normalization factors as follows: %UDMHx A, - %N2H4 x A, 21 - %H, Ox AN2, KH20 = %N2H4 x AH2, where KH,O , KDMH AN,H, y = the norm
27、alization factors for H20 and UDMH. AH20 = the measured areas of the N2ii4, UDMH, and H2O peaks multiplied by their signal attenuation factors. 4.3.2.2 Equipment. The following equipment shall apply as test conditions of 4.3.2. a. Gas chromatograph - incorporating a thermal conductivity detector. b.
28、 Recorder - potentiometric strip chart, O - 1 millivolt, 1 second FS response, with integrator. c. Column - J plain, white, 10k3 microns, 47 mm diameter, or equivalent instead of that specified in ASTM D-2276. 4.3.3.3 The drying oven temperature shall be 7OoC (158OF) instead of the 90C (194F) specif
29、ied in ASTM D-2276. 4.3.3.4 Filtered isopropyl alcohol shall be used for rinsing the sample bottle and filter holder instead of petroleum ether specified in ASTM D-2276. 5. PACKAGING 5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (s
30、ee 6.2). When actual packaging of materiel is to be performed by DoD personnel, these personnel need to contact the responsible packaging activity to ascertain requisite packaging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activity within the Milita
31、ry Department or Defense Agency, or within the Military Departments System Command. Packaging data retrieval is available from the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products, or by contacting the responsible packaging activity. 6. NOTES (This section
32、contains ihformation of a general or explanatory nature that may be helpful but is not mandatory.) 6.1 Intended use. The propellant described by this specification is intended for use as an fuel in rocket engines. 6.2 Acquisition requirements. Acquisition documents must specify the following: a. Tit
33、le, number, and date of the specification. b. Issue of DoDISS to be cited in the solicitation, and, if required, the specific issue of individual documents referenced (see 2.2.1 and 2.3). c. Method of shipment, type and capacity of containers. d. Quantity by weight. e. When a different sampling plan
34、 is required (4.2). 6 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27402C = 9%99906 2054337 239 MIL-PRF-27402C f. Packaging requirements (see 5.1). 6.3 Part or identifying number (PIN). The PIN to be used for propellant acquired to this
35、specification is M27402. 6.4 Subject term (key word listing). Fue 1 Hydrazine Prope 1 lan t Rocket engine uns-dimethylhydrazine 6.5 Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Custodians Navy - AS Air Force - 68 Review Activities Air Force - 19 Preparing Activity Air Force - 68 Civil Agency Interest NASA 8 (Project 9135-0141 ) 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
