1、MIL-PRF-27210J 7 August 2013 SUPERSEDING MIL-PRF-27210H 01 October 2009 PERFORMANCE SPECIFICATION OXYGEN, AVIATORS BREATHING, LIQUID AND GAS AMSC N/A FSC 6830 METRIC Comments, suggestions, or questions on this document should be addressed to AFPA/PTPT, 2430 C Street, Bldg 70, Area B, Wright-Patterso
2、n AFB OH 45433-7632 or e-mailed to AFPA.PTPSwpafb.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.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
3、nse from IHS-,-,-MIL-PRF-27210J 2 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for two types of aviators breathing oxygen. 1.2 Classification. Oxygen is classified as the following
4、types, as specified (see 6.2). Type I - Gaseous Type II - Liquid 1.3 Part or identifying number (PIN). The PINs to be used for oxygen acquired to this specification are created as follows: M 27210 - X - XX - XXX Example of PIN: M27210-1-22-202 Pressure (in pounds/inch2, gauge) psig/10 (Type I only)
5、Cubic feet/10 (Type I only) Type (see 1.2.1). Use 1 for type I; 2 for type II Specification number Prefix for military specification 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4 and 5 of this specification. This section does not include doc
6、uments cited in other sections 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
7、5 of this specification, 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 docume
8、nts are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE STANDARDS MIL-STD-101 Color Code for Pipelines and for Compressed Gas Cylinders MIL-STD-1411 Inspection and Maintenance of Compressed Gas Cylinders COMMERCIAL ITEM DESCRIPTIONS A-A-59860 Valves, Cylinder, Gas (For Compressed
9、or Liquefied Gases) (Copies of these documents are available online at https:/assist.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094) 2.3 Non-government publications. The following documents form a part of this document to the ext
10、ent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. ASTM INTERNATIONAL (ASTM) ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications (DoD Adopted) ASTM F307 Standar
11、d Practice for Sampling Pressurized Gas for Gas Analysis (DoD Adopted) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27210J 3 ASTM F310 Standard Practice for Sampling Cryogenic Aerospace Fluids (DoD Adopted) (Copies of these documents are a
12、vailable online at http:/www.astm.org or the ASTM International, 100 Barr Harbor Drive, West Conshohocken PA 19428-2959) COMPRESSED GAS ASSOCIATION (CGA) CGA G-4.3 Commodity Specification for Oxygen CGA P-15 Filling of Industrial and Medical Nonflammable Compressed Gas Cylinders (Copies of these doc
13、uments are available online at http:/ or the Compressed Gas Association, Inc., 14501 George Carter Way, Suite 103, Chantilly VA 20151, USA) 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited
14、 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, a sample shall be subjected to first article inspection in accordance w
15、ith 4.2 (see 6.2). 3.2 Purity. The oxygen (Type I and II) shall contain not less than 99.5 percent oxygen by volume when tested in accordance with 4.5. The remainder, except for moisture and minor constituents specified in Table I, shall be argon and nitrogen. 3.3 Impurities. The oxygen shall be fre
16、e from all contaminants of known toxicity to the maximum practicable extent. Limitations on specific impurities shall be as follows: 3.3.1 Odor. The oxygen (Type I and II) shall contain no odor when tested as specified in 4.5. 3.3.2 Minor constituents. Minor constituents of Types I and II shall not
17、exceed the quantity specified in Table I. 3.3.3 Moisture. Moisture in Types I and II shall not exceed 7 ppm of water vapor or a maximum dew point of -63.3C (-82F) when tested as specified in 4.5. 3.4 Materials. There is no requirement included herein which should be interpreted to exclude the use of
18、 reclaimed materials in the manufacture of this commodity. 3.5 Filter. When required, Type II oxygen shall be passed through a filter as specified in 4.6. 3.6 Limiting values. The following applies to all specified limits in this specification: For purposes of determining conformance with these requ
19、irements, an observed value or a calculated value shall be rounded off in the last right-hand digit used in expressing the specification limit, using the Rounding Method of ASTM E29. 3.7 Gas Cylinders (Type I only). 3.7.1 Pressure. The container filling pressure (see 6.2) shall not differ from that
20、required by the contract by more than 1.0% at 21C (70F) when tested as specified in 4.4.1. In no case shall the filling pressure exceed the rated service pressure of the container. Pressure-Temperature Filling Charts in CGA P-15 may be used. 3.7.2 Leakage. Cylinders shall not leak when tested accord
21、ing to 4.4.2. 3.7.3 Inspection and maintenance. Compressed gas cylinders shall be inspected, maintained and charged according to 4.4.3. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27210J 4 TABLE I. Constituent concentrations Constituent M
22、aximum concentration in parts per million (by volume) Type I Type II Carbon Dioxide (CO2) 10 5 Methane (CH4) 50 25 Acetylene (C2H2) 0.1 0.05 Ethylene (C2H4) 0.4 0.2 Ethane (C2H6) and other hydrocarbons as ethane equivalents 6 3 Nitrous Oxide (N2O) 4 2 Refrigerants and Similar Solvents1: Hydrochlorof
23、luorocarbons (HCFC) Hydrofluoroethers (HFE) Chlorofluorocarbons (CFC) 2 1 Other Solvents: Trichloroethylene, n-Propyl Bromide, Trichloroethane, Carbon Tetrachloride, Perchloroethylene, Dichloromethane, Perfluoro-n-Butyl-Iodine (PFBI) 0.2 0.1 Other Compounds2: (each discernible from background noise
24、on infrared spectrophotometer or gas chromatograph) 0.2 0.1 Note 1: Examples of Refrigerants and Similar Solvents include, but are not limited to the following compounds: HCFC: HCFC-225 (all isomers), HCFC-141b, HFE: HFE-7100, CFC: Freons Note 2: Examples of Other Compounds include, but are not limi
25、ted to, Carbon Monoxide (CO) and Sulfur Hexafluoride (SF6) 4. VERIFICATION 4.1 Classification of inspections. A cross reference between the individual inspections and test methods is provided in Table II. The inspection requirements specified herein are classified as follows: a. First article inspec
26、tion (see 4.2). b. Periodic inspection (see 4.2). c. Quality conformance inspection (see 4.2). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27210J 5 TABLE II. Test requirements Characteristic First Article Inspection Periodic Inspection Qu
27、ality Conformance Inspection Inspection Paragraph Test Method Paragraph Purity Type I Required RequiredRequired 3.2 4.5 Purity Type II Required Required1 Required 3.2 4.5 Odor Required Required Required 3.3.1 4.5 Minor Constituents Required Required Not Required Table I 4.5 Moisture Required Require
28、d1 Required 3.3.3 4.5 Filled Containers (Type I) Pressure Leakage Required Required Required Required Required Required 3.7.1 3.7.2 4.4.1 4.4.2 Note 1: Reported for correlation purposes only. 4.2 First article, periodic, and quality conformance inspections. 4.2.1 First article inspection. First arti
29、cle inspection shall be defined as a preproduction sample. Prior to initial delivery of Type I or Type II oxygen, a representative product specimen shall be obtained as specified in 4.3.1.1 (Type I) or 4.3.1.2 (Type II) and forwarded to the designated laboratory (6.2). The product shall meet the req
30、uirements in 3.2 and 3.3. 4.2.2 Periodic inspection. A representative product specimen of oxygen shall be obtained as specified in 4.3.1.1 (Type I) or 4.3.1.2 (Type II) and shall be taken once every 60 calendar days for the duration of the contract. This sample shall be shipped to the specified labo
31、ratory (6.2) for testing to determine compliance with requirements specified in Table II. The specified laboratory shall also test for purity and moisture if there is sufficient sample. The purity results for Type II oxygen and the moisture results for Type I and Type II oxygen shall be reported for
32、 correlation purposes and shall not be used to determine compliance to requirements of 3.2 or 3.3.3. 4.2.3 Conformance inspection. Quality conformance inspection shall consist of the following: a. Individual container / cylinder inspection (see 4.2.3.2). b. Sampling inspection per lot (see 4.2.3.3).
33、 4.2.3.1 Place of inspection. Quality conformance inspection shall be performed at source. 4.2.3.1.1 Type I oxygen. Quality conformance inspection on cylinders filled with Type I oxygen shall be performed at the site of filling (see 6.2). 4.2.3.1.2 Type II oxygen. Quality conformance inspection shal
34、l be performed on samples taken from Type II oxygen transport container prior to leaving the site of filling. The transport container shall not be permitted to take on further liquid oxygen between inspection at the filling point and arrival at its destination, unless all quality conformance inspect
35、ions are performed on the contents after such filling. 4.2.3.2 Individual container / cylinder inspection. Individual inspection will be as follows. 4.2.3.2.1 Type I Individual Inspection. Each cylinder filled with Type I oxygen shall be subjected to the tests in Table III. 4.2.3.2.2 Type II individ
36、ual inspection. After filling the shipping container, two product specimens shall be drawn from each container. One specimen shall be in liquid state and subjected to the odor test specified in 4.5. The other specimen shall be vaporized and subjected to the tests in Table III, as specified in 4.5. P
37、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27210J 6 TABLE III. Individual inspection TEST TYPE I TYPE II Leak test 4.4.2 - Odor test - 4.5 Purity test - 4.5 Moisture test - 4.5 4.2.3.3 Sampling inspection per lot. Randomly selected sample
38、s of Type I oxygen as specified in Table IV shall be subjected to the following inspection: Odor test 4.5 Fill pressure 4.4.1 Purity 4.5 Moisture 4.5 The fill pressure shall be performed prior to the odor, purity, and moisture tests. The cylinder pressure shall be checked after completion of all tes
39、ts. If the sample cylinder pressure is below the minimum acceptable value, the cylinder shall be filled to within the acceptable range. 4.2.3.4 Lot definition. Each set of Type I oxygen cylinders filled on the same manifold at the same time shall constitute a lot. TABLE IV. Sampling for test Number
40、of containers in lot Number of containers to be sampled 1 1 2 - 40 2 41 70 3 71 - over 4 4.3 Sampling. Samples required by 4.2.1 and 4.2.2 shall be delivered to the designated Government Laboratory (see 6.4), another designated laboratory, or other laboratories authorized by AFPA/PTPT, 2430 C Street
41、, Bldg 70, Area B, Wright-Patterson AFB OH 45433-7632. 4.3.1 Sampling point. The sampling point will be as follows: 4.3.1.1 Type I oxygen. Samples shall be taken from the manifold during filling operations. 4.3.1.2 Type II oxygen. Samples shall be taken from Type II oxygen storage tanks at the manuf
42、acturing site or any distribution facilities. If a distribution facility is supplied from more than one storage or manufacturing facility, each facility shall be checked as specified above. 4.3.2 Sampling method. Unless otherwise specified (see 6.2), oxygen shall be sampled according to the methods
43、of Table V. Sample size shall be sufficient to provide the analyzer with 7 liters of oxygen at 10 atmospheres of pressure. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27210J 7 4.3.2.1 Sample identification. The following data shall be pro
44、vided on each sample sent to a Government laboratory for analysis: Item name, specification number, Type (I or II), sample number, sampler serial number, contractors name, address, phone number and return shipping address for sampler, Government representatives name, address, and phone number, reaso
45、n for analysis (first article, periodic, or resample), contract number, and date sample taken. TABLE V. Sampling particulars Sampler Oxygen type Method Recommended final pressure (gauge) 1 liter size or larger Gas Cylinder I ASTM F307 12,500 kPa ( 1800 psi) TTU-131/E, Cosmodyne LLC II ASTM F310 2750
46、 to 3450 kPa (400 to 500 psi) FCS 2001, CV International II ASTM F310 5500 to 8300 kPa (800 to 1200 psi) 4.4 Cylinders of Type I oxygen. 4.4.1 Filling pressure. Containers shall be stabilized to 21C (70F). Containers shall be tested for proper filling pressure by attaching a calibrated Bourdon-tube
47、gauge or calibrated electronic equivalent gauge to the valve outlet. The gauge shall have scale divisions not greater than 100 kPa (15 psi). Then the valve shall be opened and the internal pressure observed on the gauge. If the internal pressure differs from the applicable filling pressure value by
48、more than 100 kPa (15 psi), the container, and all other containers filled from the same manifold at the same time, shall be rejected. 4.4.2 Leakage. Each Type I oxygen container shall be tested for leaks at the neck threads, stem packing, and safety device of the valve with leak detection fluid. Va
49、lve seat leakage shall be tested after filling has been completed by connecting a hose to the valve outlet and placing the other end of the hose under the surface of a liquid. Methods of leak detection and/or the leak check guidance in CGA P-15 may also be used. 4.4.3 Inspection and maintenance. Compressed gas cylinders shall be inspected, maintained
