1、 MIL-PRF-26536F 1 April 2011 SUPERSEDING MIL-PRF-26536E 24 September 1997 PERFORMANCE SPECIFICATION PROPELLANT, HYDRAZINE AMSC N/A FSC 9135 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.METRIC Comments, suggestions, or questions on this document should be addressed
2、 to AFPA/PTPT, 2430 C Street, Bldg 70, Area B, Wright-Patterson AFB OH 45433-7632 or e-mailed to AFPET.AFTTwpafb.af.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.daps.dla.mil. Provided by I
3、HSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-26536F i CONTENTS PARAGRAPH PAGE 1 SCOPE 1 1.1 Scope . 1 1.2 Classification 1 1.3 Part or identifying number (PIN) 1 2 APPLICABLE DOCUMENTS . 1 2.1 General 1 2.2 Government documents 1 2.2.1 Specifications,
4、standards, and handbooks 1 2.3 Non-Government publications . 2 2.4 Order of precedence 3 3 REQUIREMENTS 3 3.1 Chemical and physical properties 3 3.2 Limiting values . 3 3.3 Filter . 3 3.3.1 Standard grade 3 3.3.2 Monopropellant and high purity grades . 3 3.4 Qualitative 3 4 VERIFICATION 4 4.1 Classi
5、fication of inspections . 4 4.2 Quality conformance inspection . 4 4.2.1 Individual tests . 4 4.2.2 Sampling tests . 5 4.2.2.1 Sampling plan 5 4.2.2.1.1 Sample . 5 4.2.3 Rejection 5 4.3 Test methods . 5 4.3.1 Examination of product 5 4.3.2 Hydrazine assay and water . 5 4.3.3 Particulate 5 4.3.4 Chlo
6、ride 5 4.3.5 Iron . 6 4.3.6 Non Volatile Residue (NVR) 6 4.3.7 Aniline 6 4.3.8 Carbon dioxide . 6 4.3.9 Other volatile carbonaceous material (OVCM) 6 5. PACKAGING 6 5.1 Packaging 6 6 NOTES . 6 6.1 Intended use 6 6.2 Acquisition requirements . 6 6.3 Subject term (key word) listing . 7 6.4 Changes fro
7、m previous issue 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-26536F ii TABLE I Chemical and physical properties. . 4 A-1 GC suggested parameters . 10 G-1 GC suggested parameters . 32 FIGURE D-1 NVR apparatus 18 F-1 CO2apparatus . 26 F-2
8、 CO2apparatus . 29 APPENDIX A Hydrazine assay and water 8 B Chloride 12 C Iron . 14 D Non-volatile residue (NVR) 17 E Aniline 22 F Carbon dioxide . 25 G Other volatile carbonaceous material (OVCM) 30 CONCLUDING MATERIAL 33 Provided by IHSNot for ResaleNo reproduction or networking permitted without
9、license from IHS-,-,-MIL-PRF-26536F 1 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope1.2 . This specification covers the requirements for three grades of hydrazine (N2H4). Classification. Hydrazine will be of the following desig
10、nated grades as specified (6.2). Standard GRADES - For uses other than those required by monopropellant and high purity grades. Monopropellant - Normal product with strict control of specified impurities. To be specific only for monopropellant catalytic engines where extended life is a requirement.
11、High Purity - Special production with strict control of specified impurities. 1.3 Part or identifying number (PIN)M . The PINs to be used for hydrazine acquired to this specification are created as follows: 26536Grade (see 1.2). Use “S” for standard; “M” for monopropellant; “H” for high purity X Exa
12、mple of PIN: M26536-S Specification number Prefix for military specification 2. APPLICABLE DOCUMENTS 2.1 General2.2 . The documents listed in this section are specified in sections 3 or 4 of this specification. This section does not include documents cited in other sections of this specification or
13、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 or 4 of this specification, whether or not they are listed. Go
14、vernment documents2.2.1. 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 cited in the solicitation or contract. Provided by IHSNot for ResaleNo repr
15、oduction or networking permitted without license from IHS-,-,-MIL-PRF-26536F 2 DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-PRF-25604 Propellant, uns-Dimethylhydrazine MIL-PRF-27401 Propellant Pressurizing Agent, Nitrogen MIL-PRF-27404 Propellant, Monomethylhydrazine MIL-PRF-27407 Propellant Pressurizin
16、g Agent, Helium (Copies of these documents are available online at https:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Bldg 4D, Philadelphia PA 19111-5094). 2.3 Non-government publicationsASTM International . The following documents form a par
17、t of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. ASTM D1068 Standard Test Methods for Iron in Water (DoD Adopted) ASTM D1193 Standard Specification for Reagent Water (DoD Adopted) ASTM D1976
18、Standard Test Method for Elements In Water by Inductively-Coupled Argon Plasma Atomic Emission Spectroscopy ASTM D2276 Standard Test Method For Particulate Contaminant in Aviation Fuel by Line Sampling (DoD Adopted) ASTM E29 Standard Practice Using Significant Digits in Test Data to Determine Confor
19、mance with Specifications (DoD Adopted) ASTM E394 Standard Test Method for Iron in Trace Quantities Using the 1,10-Phenanthroline Method (Copies of these documents are available online at http:/www.astm.org or the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken P
20、A 19428-2959) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-26536F 3 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (EPA) EPA 300.0 Determination of Inorganic Anions by Ion Chromatography. (Copies of these documents are available online at h
21、ttp:/water.epa.gov or call EPA New England Customer Call Center at (888) 372-7341 for New England States or (617)918-111 for all others) 2.4 Order of precedence3. REQUIREMENTS . Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the ref
22、erences cited herein (except for related specification sheets), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3.1 Chemical and physical properties3.2 . The chemical and physical
23、 properties of the propellant shall conform to those listed in Table I when tested in accordance with the applicable test methods. Limiting values3.3 . The following applies to all specified limits in this specification: For purposes of determining conformance with these requirements, an observed va
24、lue 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 E29, Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specificat
25、ions. Filter3.3.1 . Standard grade3.3.2 . A filter with a rating of at least 10 micrometer (m) nominal and 40 m absolute rating shall be installed between the manufacturers plant system and the container to be filled for delivery. Monopropellant and high purity grades3.4 . A filter with a rating of
26、at least 2 m nominal and 10 m absolute rating shall be installed between the manufacturers plant system and the container to be filled for delivery. Qualitative. The propellant shall be colorless, homogeneous liquid when examined visually by transmitted light. Provided by IHSNot for ResaleNo reprodu
27、ction or networking permitted without license from IHS-,-,-MIL-PRF-26536F 4 TABLE I. Chemical and physical properties Properties Limits Standard grade Monopropellant grade High purity grade Test paragraph Hydrazine (% by wt) Water (% by wt) Ammonia (% by wt) Particulate (mg/L) Chloride (% by wt) Ani
28、line (% by wt) Iron (% by wt) Nonvolatile residue (% by wt) Carbon dioxide (% by wt) Other volatile carbonaceous material (2)(Total as UDMH, MMH, for high purity refer to section E.2.4. TABLE A-1. GC Recommended parameters PARAMETER CONDITION Carrier Gas He Carrier Flow 10 mL/min Sample Volume. 1 L
29、(10:1 split) Inlet Temp. 150 C TCD Detector Temp. 200 C Carrier + Aux. Flow 25 mL/min Carrier + Aux. + Ref. Flow 65 mL/min Total (Splitter Bypass) Flow 90 mL/min Purge On Oven Max 200 C Equilibration Time 2.00 min Initial Temp.(T0) 60 C Initial Time (t0) 4.00 min Rate (1) 10 C/min Final Temp. (Tf) 1
30、00 C Final Time (tf) 0.00 min Rate (2) 20 C/min Final Temp. (2) 185 C Final Time (2) 2.75 min A.2.2.2 Quality control. The following performance criteria must be met for fuel purity analysis, GC replicate analyses (3 consecutive) RSDa 5 % a. RSD = Standard Deviation * 100 / Mean A.2.2.3 Equipment. (
31、1) Gas chromatograph equipped with a thermal conductivity detector (TCD) and a split/splitless injector. (2) Hewlett Packard (HP) Chemstation or equivalent. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-26536F APPENDIX A 11 (3) A 30 m x 0.5
32、3 mm DB-Wax capillary column. (4) Glass wool packed split liner. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-26536F APPENDIX B 12 CHLORIDE B.1 SCOPE B.1.1 ScopeB.2 METHODS . This Appendix describes two methods for the determination of chl
33、oride content of the propellant. This Appendix is a mandatory part of the specification. The information contained herein is intended for compliance. B.2.1 Specific ion electrode methodB.2.1.1 . ProcedureB.2.1.2 . Rinse the propellant residue container in one vessel from 4.3.6 with a 5 mL aliquot of
34、 1N sulfuric acid (H2SO4). Briefly stir and heat the liquid to boiling and cover with an inverted watch glass to prevent the condensate from escaping. Transfer the solution to a 25 mL volumetric flask. Rinse vessel with a second 5 mL aliquot of acid followed by one 5 mL aliquot of purified water. Co
35、mbine the aliquots in the 25 mL volumetric flask and add two to three drops of bromocresol green indicator. Dropwise titrate the contents of the flask to a green endpoint with 1N sodium hydroxide (NaOH) and dilute to the mark with purified water. Mix the solution and transfer approximately 10 mL to
36、a 25 mL beaker. Immerse the electrodes in the sample solution and record the millivolt reading. Compare the millivolt reading from the sample to a calibration curve prepared from chloride standards and record the concentration (ppmv) of the sample. Calculation)101)()()(%4=DVVClppmvClhd. Calculate th
37、e percent chloride in the sample using the following formula: where, dV = Final dilution volume taken from NVR residue in mL. hV = Volume of hydrazine used in NVR analysis in mL. D = Density of hydrazine (1.01 g/mL). B.2.1.3 Reagents and equipmentB.2.1.3.1 . The following shall apply as test conditi
38、ons of 4.3.4: Reagentsa. Chloride-free purified water; the water is considered chloride free if a 100 mL sample used to dissolve 0.1 gram (g) of silver nitrate, shows no turbidity after standing in the dark for 24 hours. . b. 1N H2SO4; prepare by pouring 29 mL of American Chemical Society (ACS) grad
39、e concentrated H2SO4into 300 mL of chloride free water contained in a 1000 mL volumetric flask. Cool the solution to room temperature, dilute to the mark with the chloride free water, and mix thoroughly. Transfer the solution to a plastic bottle. c. 1N NaOH; prepare by dissolving 40 g of ACS grade,
40、low carbonate, NaOH in 300 mL of chloride-free water contained in a 1000 mL volumetric flask. Cool the solution to room temperature, dilute Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-26536F APPENDIX B 13 to the mark with chloride free pu
41、rified water, and mix thoroughly. Transfer the solution to a plastic bottle and protect from long exposure to the atmosphere. d. Standard sodium chloride (NaCl) solution, 1 mL = 1.00 mg Cl-; weigh 1.648 g dry NaCl into a 1 liter (L) volumetric flask. Dilute to the mark with purified water. Transfer
42、the thoroughly mixed solution to a clean polyethylene bottle for storage. B.2.1.3.2 Equipmenta. Chloride electrode solid state Orion 9417BN, or equivalent. . b. Reference electrode - Orion 900200 Sure-Flow double junction with 1M potassium nitrate (KNO3) outer compartment filling solution, or equiva
43、lent. c. pH/millivolt meter. B.2.2 Colorimetric method. B.2.2.1 Procedure. Add to the propellant residue container in one vessel from 4.3.6 five milliliters of ferric alum indicator and transfer to a 100 mL volumetric flask. Rinse the vessel with three 5 mL purified water aliquots and combine into t
44、he volumetric. Set samples aside. Prepare a calibration blank and at a minimum two standards to bracket the expected chloride concentration in the samples in 100 mL volumetric flasks, and add 5 mL of ferric alum indicator. Add 2.5 mL of mercuric thiocyanate solution to each volumetric, samples and s
45、tandards, and dilute to the mark with purified water. Mix the solutions thoroughly and allow to stand in darkness for 15 30 min. Analyze in a UV-Vis spectrophotometer at 460nm, at the wavelength recommended by the instrument manufacturer, or at that which provides the highest sensitivity using 5 cm
46、cells. Use the blank to set the instrument to zero absorbance and determine the absorbances of standards and samples. Prepare a calibration curve of absorbance vs concentration and determine the chloride concentration in the samples. The calibration correlation coefficient shall be 0.999. B.2.2.2 Ca
47、lculation. Calculate the chloride content of the propellant using the formula in B.2.1.2. B.2.2.3 Reagents and equipmentB.2.2.3.1 . The following shall apply as test conditions of 4.3.4: Reagentsa. Purified water of 18M-ohm or greater resistivity. . b. Ferric alum indicator, Volhard (oxidation reduc
48、tion indicator) , Dissolve 10 g of ferric ammonium sulfate dodecahydrate (FeNH4(SO4)212H2O) ACS grade in approximately 50 mL of purified water. Add 10 mL of ACS grade nitric acid, and dilute to 100 mL with purified water. (may be commercially obtained). c. Mercuric thiocyanate, 4.17 g/L in methanol for chloride determination (commercially available). d. Chloride standard, 1000 mg/L (may be commercially obtained; must be certified). B.2.2.3.2 Equipment. UV-Vis Spectrophotometer, double beam, equipped with 5 cm cells. Provided by IHSNot for ResaleNo reprod
