NAVY MIL-C-24224 B-1985 CARTRIDGE GAS PRESSURE FOR PRESSURIZING DRY CHEMICAL FIRE EXTINGUISHING《密封干粉灭火剂压力贮气瓶》.pdf

1、MIL-C-24224B(SH) 18 October 1985 SUPERSEDING MIL-C-24224A(SHIPS) 27 October 1969 (See 6.4) - MILITARY SPECIFICATION CARTRIDGE, GAS PRESSURE, FOR PRESSURIZING DRY CHEMICAL FIRE EXTINGUISHERS This specification is approved for use within the Naval Sea Systems Command, Department of the Navy, and is av

2、ailable for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for gas pressure cartridges to be used in cartridge-operated dry chemical fire extinguishers. 1.2 Classification. The cartridges covered by this specification

3、shall be of the following classes and sizes, as specified (see 6.2.1). Class 1 - Magnetic Class 2 - Nonmagnetic Size 1 - 5-1/4 oz. CO2 capacity (nominal) Size 2 - 8-1/4 oz. CO2 capacity (nominal) 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following spec

4、ifications and stan- dards form a part of this specification to the extent specified herein. Unless otherwise 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 s

5、olicitation. SPECIFICATIONS FEDERAL PPP-B-636 - Boxes, Shipping, Fiberboard. PPP-B-640 - Boxes, Fiberboard, Corrugated, Triple-Wall. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Na

6、val Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20613-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. FSC 4210 DISTRIBUTION STATEMENT A Approved for public release; distributio

7、n unlimited Y THIS DOCUMENT CONTAINS ,113 . - PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SPECIFICATIONS (Continued) MILITARY MIL-P-116 - Preservation, Methods of. MIL-1-17214 - Indicator, Permeability; Low-Mu (GO-NO Go). MIL-1-24091 - Ext

8、inguisher, Fire, Portable, Potassium, Bicar- bonate, Dry Chemical, Cartridge Operated Type. STANDARDS FEDERAL FED-STD-H28 - Screw Thread Standards or Federal Services. FED-STD-H28/2 - Unified Inch Screw Threads - UN and UNR Thread Form. MILITARY MIL-STD-105 by Attributes. MIL-STD-129 - Marking for S

9、hipment and Storage. - Sampling Procedures and Tables or Inspection 2.1.2 Other government document. The following other Government document forms a part of this specification to the extent specified herein. wise specified, the issue shall be that in effect on the date of the solicitation, Unless ot

10、her- CODE OF FEDERAL REGULATIONS Department of Transportation - Eitle 49 - Transportation. (Application for copies should be addressed to the Superintendent of Docu- ments, Government Printing Office, Washington, DC 20402.) (Copies of specifications and standards, required by contractors in connec-

11、tion with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the docume

12、nts which are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS shall be the issue of the nongovern- ment documents which is current on the date of the solicitation. AMERICAN SOCIET

13、Y FOR TESTING AND MATERIALS (ASTM) D 3951 - Commercial Packaging. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-

14、,-,- MIL-C-2i.12246 i.12 7777706 0232b73 T UNIFORM CLASSIFICATION COMMITTEE AGENT Uniform Freight Classification Ratings, Rules, and Regulations. (Application for copies should be addressed to the Uniform Classification Committee Agent, Tariff Publication Officer, Room 1106, 222 South Riverside Plaz

15、a, Chicago, IL 60606.) (Nongovernment standards and other publications are normally available from the organizations which prepare or which distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.3 Order of precedence. In the event

16、of a conflict 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 specifi- cation shall take precedence. Nothing in this specification, however, shall supersede applicable laws an

17、d regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Material. The use of dissimilar metals in contact, which tends toward electrolytic corrosion (particularly brass, copper, or steel in contact with aluminum alloy), is not acceptable. However, metal plating or metal spra

18、ying of dissimilar base metals to provide similar or suitable abutting surfaces is permissible. magnetic permeability per unit volume shall not exceed 2.0 when complete with cartridge seal. When class 2 cartridges are specified (see 6.2.1), the average 3.1.1 Recovered materials. Unless otherwise spe

19、cified herein, all equip- ment, material, and articles incorporated in the products covered by this specifi- cation shall be new and may be fabricated using materials produced from recovered materials to the maximum extent practicable without jeopardizing the intended use. The term *recovered materi

20、als“ 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 materials. mean that the use of used or rebuilt products is allowed under this specification unless otherwise specifically specified. None of the

21、 above shall be interpreted to 3.2 Construction. Gas pressure cartridge shall be constructed to facilitate installation in dry chemical extinguishers conforming to MIL-E-24091. ridge shall be of the refillable type, and shall conform to the Department of Transportation (DOT) Specification 3E1800 of

22、title 49 of the Code of Federal Regulations in matters of construction, tests and marking. Critical dimensions shall be as shown on figure 1. The cartridge shall consist of the following parts : The cart- 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS

23、-,-,-MIL-C-24224B 42 M 9777706 0232674 L - Identification number Size 1 Size 2 Cartridge body. Cartridge seal. Pressurizing gas, C02. Shipping cap. A (inches) Nominal capacity, OZ. Min. Max . 5-1 /4 6.500 7.750 8-1 /4 9.500 10.750 ,750-16 UNF-3B THREAD EFFECTIVE THDS 318 DEEP T.0625-20 UNS-2A Left H

24、and Threads /MIN 4 FULL THDC 500 MINIMUM 025 MAXIMUM IA. FIGURE 1. Critical cartridge dimensions. 3.2.1 Cartridge. The cartridge body shall be constructed by a process One end shall be necked down or provided wlth a suitable for the intended use. separate adapter and machined with an external 1.0625

25、-20 UNS-2A-LH thread for attachment to the extinguisher. .750-16 UNF-3B thread with a minimum of six threads to receive the cartridge seal. Critical cartridge thread section dimensions shall be as shown on figure 1. Threads shall be in accordance with FED-STD-H28 and FED-STD-H28/2. The neck or adapt

26、er shall also have an internal 3.2.1.1 The external neck thread may be American National Thread Form 1.0625-20 NS-2 left hand thread for gas cartridges having passed first article testing prior to 1 January 1985. 3.2.2 Cartridge seal. The cartridge seal body shall be formed of brass Each seal with a

27、n external .750-16 UNF-3A thread to fit into the cartridge neck. assembly shall be furnished as a unit for.recharging purposes and shall consist of the body, bushing, seal disc and backup washer. - a a a 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-

28、,-,-I v MIL-C-24224B 42 W 7777906 0232675 3 a a a 3.2,2,L Safet-s seal dise The seal disc, when installed in the cartridge, shall also serve as a safety disc and shall ruptiire when subjected to the test of 4.5.30 3.2.3 Pressurizing gas, The pressurizing gas shall be carbon dioxide with a maximu= wa

29、ter concent of 0.05 percent by weight. for size 1 and 8-1/4 =i- 1/4 ozr for size 2, when charged to not more thanthe maxi- mum filling density permitted fn the Code of Federal Regulations, Title 49, Part 3.2.4 Capacity. The gas capacity of the cartridge shall be 5-1/4 + 1/4 ozo 173. 3.2.5 Marking. T

30、he fully charged weight of each cartridge, the empty weight complete with cartridge seal, and the class and size shall be permanently and conspicuously stamped on each cartridge. 3.2.5.1 Instructions for removing the cartridge and performing periodic inspection shall be printed on the body of each c

31、artridge. include “Left-hand thread to remove“ . The printing shall 3.2.5.2 The manufacturers name, DOT number 3E1800, date of manufacture, class and size extinguisher (see MIL-E-24091) for which it was designed shall be printed oathe body of the cartridge. 3.2.6 Shipping cap. Each cartridge shall b

32、e supplied with a shipping cap of corrosion-resistant material or with a corrosion-resistant finish to protect the cartridge threads. around the edge of the cap to provide venting without significant recoil in the event of rupture of the safety seal. the warning, “Caution - do not remove this cap un

33、til ready to install.“ Four equally spaced holes or grooves shall be provided A tag shall be attached to the cap bearing 3.2.7 Protective coating. Each cartridge shall be degreased, pickled, and bonded before applying organic protective coatings. 3.2.8 Workmanship and materials. Workmanship and mate

34、rials shall be in accordance with the highest-grade commercial practice covering this class of equipment. The cartridge shall be uniform in quality and shall be free from irregularities, defects, or foreign matter which could adversely affect safety, performance, reliability, or durability. 4. QUALI

35、TY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. fied in the contract or purchase order, the contractor may use his own or any

36、 other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and

37、services conform to prescribed requirements. Except as otherwise speci- 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-ZY224B Y2 777770b 023267b 5 = MIL-C-24224B(SH) 4.1.1 Responsibility for compliance. All items must meet all requirements o

38、f sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of assuring that all products

39、 or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling in quality conformance does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. 4.2 Qual

40、ity conformance inspection. Quality conformance inspection shall consist of the examination of 4.3 and the tests specified in 4.4. 4.2.1 InsDection lot. 4.2.1.1 Cartridges. All cartridges of the same class and size offered for delivery at one time shall be considered a lot for the purpose of quality

41、 confor- mance inspection. 4.2.1.2 Safety seal discs. A lot of safety seal discs shall consist of 100 safety seal discs stamped from the same sheet of material. 4.2.1.3 Certificate of compliance. The contractor shall prepare a certi- ficate of compliance in accordance with the data ordering document

42、 (see 6.2.2). The certificate shall state that the contractor has determined (either by actual test, or through adequate control of the manufacturing process) that the extin- guisher meets the requirements of section 3. It shall contain actual test, examination, or other verifiable data which verifi

43、es conformance to material requirements. 4.2.2 Sampling for examination. Sample cartridges shall be selected at random from each lot in accordance with MIL-STD-105 at inspection level II, for the examination specified in 4.3. 4.2.3 Sampling for quality conformance tests. Sample cartridges shall be s

44、elected at random from each lot in accordance with MIL-STD-105, at inspection level I and shall be subjected to the tests specified in 4.4. 4.2.3.1 Sampling for safety seal disc test. One safety seal disc shall be selected from each lot of safety seal discs (see 4.2.1.2) and shall be subjected to th

45、e safety seal disc test of 4.5.3. If the safety seal disc fails to conform to this specification the lot represented by the sample shall be rejected. 4.3 Examination. Each of the sample cartridges selected in accordance with 4.2.2 shall be examined to verify compliance with this specification. Exami

46、nation shall be conducted as specified in table I. If any cartridge is found not in con- formance with the requirements of this specification, the cartridge shall be rejected and the lot represented by the sample shall be rejected. Provided by IHSNot for ResaleNo reproduction or networking permitted

47、 without license from IHS-,-,- MIL-C-24224B 42 797770b 0232677 7 a a a Categories Critical : Major: 101 102 103 104 105 106 107 108 TABLE I. Classification of defects. Defects None defined. Material not as specified. Parts missing, damaged, defective, foreign matter Assembly of parts not as specifie

48、d. Threading not as specified. Protective coating not as specified. Weight not as specified. Dimensions not as specified. Marking not as specified. present, irregularities or malfunctioning. 4.4 Quality conformance tests. Each of the sample cartridges selected in accordance with 4.2.3 shall be subje

49、cted to the tests of 4.5.1 through 4.5.4. If any cartridge fails one or more of the tests, the lot represented by the sample shall be rejected. 4.4.1 Quality conformance inspection report. A quality conformance inspec- tion report shall be repeated by the contractor and provided in accordance with the data ordering document (see 6.2.2). 4.5 Test procedures. 4.5.1 Gas leakage. Each fully charged gas pressure cartridge shall be total