1、l i 1. I INCH-POUND I MIL -M- 24 144D ( SH) 25 April 1988 SUPERSEDING MIL-I-24144C(SHIPS) 30 June 1978 (See 6.7) MILITARY SPEC IF I CATI ON MONITORS, FROST-POINT/DEW-POINT, COMPRESSED AIR, SEMI-PORTABLE This specification is approved for use within the Naval Sea Systems Command, Department of the Na
2、vy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers semi-portable frost/dew point. monitors used to determine the moisture content of shipboard compressed air systems 1.2 Classification. Monitors shall be of the fol
3、lowing types and pressure ranges as specified. 1.2.1 Type. Monitor types shall be as follows: Chilled surface monitor (CSM) - dew point temperature determined by visual or automatic detection of vapor condensation on a chilled mirror surface exposed to sample air (see 6.2). Direct reading hygrometer
4、 (DRH) - dew point temperature determined by measuring the electrical properties of a sensing device exposed to sample air (see 6.2). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, N
5、aval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 6685 DISTRIBUTION STATEMENT A Approved for public release; d
6、istribution unlimited r THIS DOCUMENT CONTAINS -32 PAGES. - Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.2.2 Pressure ranges, Pressure ranges for either type shall be as follows: Low pressure (LP) - 1 to
7、150 pounds per square inch (lb/in2). High pressure (HPZ - 3,000 to 5,000 lb/in2 (see 6.2). 2, APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following specifications and . standards form a part of-this specification to the extent specified herein. Unless other
8、wise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. SPECIFICATIONS FEDERAL PPP-F-320 MILITARY MIL- s - 9 o 1 MIL-S-3786 MIL- S - 39 5 O MIL-B-54
9、23 MIL - C - 5 5 4 1 MIL-S-8805 MIL-F-15160 MIL- S - 15 29 1 MIL-S-15743 MIL-E-16400 MIL-E-17555 MIL-G-18997 - Fiberboard; Corrugated and Solid, Sheet Stock (Container Grade), and Cut Shapes. - Shock Tests, H.I. (High-Impact); Shipboard Machinery, Equipment and Systems, Requirements for. - Switches,
10、 Rotary (Circuit Selector, Low-Current Capacity), General Specification for. - Switches, Toggle, Environmentally Sealed, General Specification for. - Boots, Dust and Water Seal (for Toggle and Push- button Switches, Circuit Breakers, and Rotary- Actuated Parts), General Specification for. - Chemical
11、 Conversion Coatings on Aluminum and Aluminum Alloys. - Switches and Switch Assemblies, Sensitive and Push (Snap Action), General Specification for. - Fuses: Instrument, Power, and Telephone. - Switches, Rotary, Snap Action and Detent/Spring - Switches, Rotary, Enclosed. - Electronic, Interior Commu
12、nication and Return Action, General Specification for. Navigation Equipment, Naval Ship and Shore: General Specification for. - Electronic and Electrical Equipment, Accessories, and Provisioned Items (Repair Parts): Packaging of. - Gauge, Pressure, Dial Indicating. 2 Provided by IHSNot for ResaleNo
13、reproduction or networking permitted without license from IHS-,-,-*mIL-M-24144D 66 W 7797706 O132488 ML-M-24144D (SH) MILITARY (Continued) MIL-L-19140 - Lumber and Plywood, Fire-Retardant Treated. MIL-F-19207 - Fuseholders, Extractor Post Type, Blown Fuse Indicating and Nonindicating General Specifi
14、- cat ion for, Indicating, Type FHLlOU and FHLIOG. Indicating, Type FHL11U and FHL11G. Inline, and Pushbutton), General Specification for. Specification for. NIL-F-19207/1 - Fuseholders, Extractor Post Type, Blown Fuse MIL-F-19207/2 - Fuseholders, Extractor Post Type, Blown Fuse MIL-S-22710 - Switch
15、es, Rotary (Printed Circuit), (Thumbwheel, MIL-S-22885 - Switches, Pushbutton, Illuminated, General . MIL-P-24212 - Pressure Transducer Equipment (Electrical). MIL-M-38510 - Microcircuits , General Specification for. MIL-S-55433 - Switches, Reed, General Specification for. MIL-R-83248 - Rubber, Fluo
16、rocarbon Elastomer, High Temperature, Fluid, and Compression Set Resistant. STANDARDS FEDERAL FED-STD-H28 - Screw-Thread Standards for Federal Services. MI LI TARY MIL-STD-105 - Sampling Procedures and Tables for Inspection MIL-STD-167-1 - Mechanical Vibrations of Shipboard Equipment by Attributes.
17、(Type I - Environmental and Type II - Internally Excited). MIL-STD-275 - Printed Wiring for Electronic Equipment. MIL-STD-278 - Welding and Casting Standard. MIL-STD-454 - Standard General Requirements for Electronic MIL-STD-461 Equipment. Requirements for the Control of Electromagnetic Interference
18、. Measurement of. - Electromagnetic Emission and Susceptibility MIL-STD-462 - Electromagnetic Interference Characteristics, DOD-STD-1399, - Interface Standard for Shipboard Systems, Elec- DOD-STD-2142 - Magnetic Silencing Characteristics, Measurement DOD-STD-2143 - Magnetic Silencing Requirements fo
19、r the Construc- Section 300 tric Power, Alternating Current. (Metric) of. (kletric) tion of Nonmagnetic Ships and Craft. (Metric) 2.1.2 Other Government publication. The following other Government publication forms a part of this specification to the extent specified herein. Unless otherwise specifi
20、ed, the issues shall be those in effect on the date of the solicitation. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-24144D (SH) PUBLICATION NAVAL SEA SYSTEMS COMMAND (NAVSEA) 0900-LP-001-7000 - Fabrication and Inspection of Brazed Piping
21、 Systems. (Copies of specifications, standards, and publications required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.2 Other publications. The following documents form a part of this
22、 specification to the extent specified herein. issues of the documents which are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicitation. specified, the issues of documents not listed in the DoDISS shall be the issue of the nongovernment documents which is current
23、on the date of the solicitation. Unless otherwise specified, the Unless otherwise AElERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 167 - Standard Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip. (DoD adopted) Austenitic Alloy-Steel Boiler, Superheater
24、, and Heat- Exchanger Tubes. (DoD adopted) tenitic Stainless Steel Tubing for General Service. (DoD adopted) Stee1,Bars and Shapes. (DoD adopted) Shapes (Metric). (DoD adopted) (DoD adopted) Seamless Condenser Tubes and Ferrule Stock. (DoD adopted) B 135 - Standard Specification for Seamless Brass T
25、ube. (DoD adopted) B 221 - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Shapes, and Tubes. (DoD adopted) D 702 - Standard Specification for Cast Methacrylate Plastic Sheets, Rods, Tubes, and Shapes. (DoD adopted) A 213 - Standard Specification for Seamless Ferrit
26、ic and A 269 - Standard Specification for Seamless and Welded Aus- A 276 - Standard Specification for Stainless and Heat-Resisting B 21 - StandardSpecification for Naval Brass Rod, Bar, and B 75 B 111 - Standard Specification for Copper and Copper-Alloy - Standard Specification for Seamless Copper T
27、ube. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Nongovernment standards and other publications are normally available from the organizations which prepare or which distribute the documents. These document
28、s also may be available in or through libraries or other informational services.) 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-24144D 66 m 9999906 013249 6 bl I L - 11 - 2 4 1 44D ( S H ) 2.3 Order of precedence. In the event of a conflict
29、 between the text of this specification and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this specification shall take precedence. shall supersede applicable laws and regulations unless a specific exemption has been obta
30、ined. Nothing in this specification, however, 3. REQUIREMENTS 3.1 Qualification. Honitors furnished under this specification shall be products which are authorized by the qualifying activity for listing on the applicable qualified products list at the time set for opening of bids (see 4.3 and 6.3).
31、3.2 Materials. Monitor parts shall have materials in accordance with DOD-STD-2143 and table I or table II. Chemically equivalent metal materials may be substituted as long as physical and chemical characteristics are similar. Items and parts used in the monitors shall be new and unused. Reclaimed ma
32、terial shall be used to the maximum extent practicable in producing.such items and parts provided that the monitors items and parts conform to the requirements of this specification. To insure minimal operator hazards when using the monitors, safety considerations shall be exercised where selecting
33、component material. TABLE I. Material requirements for CSM. Item Heat exchanger tubing Heat exchanger shell Sampling chamber Mat er ia1 Copper Copper-nickel Corrosion-resisting . steel Corros ion-res ist ing steel Corros ion-resisting steel App 1 icab le documents ASTH B 111 ASTM B 111 ASTM A 213 (g
34、rade TP 316) ASTM A 213 (grade TP 316) ASTM A 276 (type 316) ASTM A 167 (type 316) _ Remarks Applicable to LP and HP configuration App 1 icab le to LP and HP configuration Material app 1 icab 1 e to HP or LP material as accepted Provided by IHSNot for ResaleNo reproduction or networking permitted wi
35、thout license from IHS-,-,-TABLE I. Material requirements for CSM. - Continued Item Heat sink with precipitating surface (mirror) finish Viewer window Valves Pressure tubin (excluding heat exchanger) Indicator case (LP and HP) Sampling tube, armor, adaptors, and connections Vortex tube Mat er i a 1
36、Copper Chrome-nickel alloy Colorless, trans- parent cast acrylic (methyl- methacrylate) Corros ion-res is ting - 300 series steel Corro steel ion-resisting Aluminum on high impact ABS plastic Corrosion-resisting steel Corrosion-resisting steel Brass (rod and bar) Brass (seamless tube) Applicable doc
37、uments ASTM B 75 ASTM D 702 (-ype III, grade 1) ASTM A 269 (grade TP 316) ASTM B 221 ASTM A 276, ASTM A 269 (TP 304 or grade TP 316 corrosion- resisting steel) ASTM A 269 (type 304) ASTM B 21 ASTM B 135 Remarks Applicable to LP and HP configuration Mirror finish of chrome- nickel alloy plated on cop
38、per heat sink Applicable to LP and HP configuration Mater ia1 applicable to HP or LP material as accepted Material applicable to HP or LP material as accepted Aluminum material shall be treated against cor- ros ion by anodizing or in accordance with MIL-C-5541 Applicable to LP and HP configuration M
39、aterial applicable to LP configuration 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-24L44D 66 m 7777906 0132972 T m Item Sample cell Valves Sampli g tub , armor, adaptors, and connect ions Indicator case (LP and HP) Pneumatic tubing MIL-M-
40、24144D(SH) TABLE II. Material requirements for DRH. Mat er ia 1 Corrosion-resisting steel Corros ion-res isting steel - 300 series Corrosion-resisting steel Aluminum or high impact ABS plastic Corrosion-resisting steel Applicable documents ASTM A 276 (type 316) ASTM A 167 (type 316) ASTN A 276, ASTM
41、 A 269 (304 or grade TP 316 corrosion-resist- ing steel) ASThl B 221 ASTM A 269 (grade TP 316) Remarks Material app 1 icab le to HP or LP material as accepted Applicable to LP and HP configuration Applicable to LP and HP configuration Aluminum material shall be treated against cor- ros ion by anodiz
42、ing or in accordance with MIL-C-5441 Material app 1 icab le to HP or LI? material as accepted 3.2.1 Recovered materials. Unless otherwise specified herein, all equip- ment, material, and articles incorporated in the products covered by this speci- fication shall be new and may be fabricated using ma
43、terials produced from recovered materials to the maximum extent practicable without jeopardizing the intended use. The term “recovered materials“ means materials which have been collected-or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw mate
44、rials. interpreted to mean that the use of used or rebuilt products is allowed under this specification unless otherwise specifically specified. None of the above shall be 3.3 General description. Monitors shall meet the general requirements specified in 3.3.1 through 3.3.4.2. Provided by IHSNot for
45、 ResaleNo reproduction or networking permitted without license from IHS-,-,-. 33,1 CSM, low pressure. 3.3.1.1 Construction. Monitors shall consist of, but need not be limited to, the following components. Heat exchangers. Sample chamber with viewing window. Precipitating surface (mirror). Flow switc
46、hing valves. Sample and coolant tubing. Thermocouples or other electrical temperature sensors. Digital temperature indicator. Monitor case, Sample and coolant connections. Vortex tube. Sample flowmeter and flow control valve. Mirror temperature control. Optical viewing assembly. Pressure transducer.
47、 Mirror temperature control valve. Filter to protect vortex and cryostat. Electrical power cable and plug. Operational requirements. The monitor shall be constructed so that by connecting the coolant inlet to a sample gas pressure source of 80 to 150 lb/n2 and the power cable to a 115 volt, 60 hertz
48、 (Hz), single-phase, grounded receptacle, it shall be ready for operation. gas pressure is lower than 80 lb/in2, it shall be connected to the sample gas inlet and an auxiliary coolant gas source (air or nitrogen) of 80 to 150 lb/in2 shall be supplied to the coolant inlet. Valving shall be provided t
49、o isolate the sample chamber from the auxiliary coolant gas and to connect the sample gas to the sample chamber when operating with auxiliary coolant. shall cool the sample gas to its frost/dew-point by utilizing the cold effluent from a vortex tube and shall provide a convenient method for observing the precipitating surface through the optical viewing assembly. A temperature con- trol valve shall be provided to control the rate of
