1、MIL-F-5 P539A(EA) 28 SeDtember 1990 SUPERSEDING 29 March 1988 MIL-F-S1539(EA) MILITARY SPECIFICATION FILTER UNIT, GAS-PARTICULATE: 400 CFM, 208 V, 400 Hz, M59 This specification is approved for use by the US. Army Chemical Research, Development and Engineering Center, Department of the Army, and is
2、available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers one type of gas particulate filter unit capable of delivering filtered air at a rate of 400 cubic feet per minute (cfm). (See 6.1.) 2. APPLICABLE DOCUMENTS 2.1 Government doc
3、uments. 2.1.1 Specifications, standards, and handbooks. The following specifications, stan- dards, and handbooks 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 De- partment of Defense Index o
4、f Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (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, U.S. Army Chemical Research, Devel
5、opment and Engineering Center, AITN: SMCCR-PET-S, Aberdeen Proving Ground, MD 2 10 10-5423 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter, AMSC NIA FSC 4240 DISTRIBUTION STATEMENT A. Approved for public rele
6、ase; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-5 15 39A SPECIFICATIONS MILITARY . MIL-F-5 1527 - Filter Set, Gas and Particulate, 200 CFM (Modular Collective Protection Equipment (MCPE)/Simplified Collective Pro
7、tection Equipment (SCPE) Applications) STANDARDS MILITARY- MIL-STD-781 HANDBOOKS MILITARY MIL-HDBK-781 - Reliability Testing for Engineering Development, Qualification, and Production - Reliability Test Methods, Plans, and Environments for Engineering Development, Qual if ica tion, and Production (U
8、nless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents, drawings, and publications. The following o
9、ther Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicita- tion. U.S. ARMY CHEMICAL RESEARCH, DEVELOPMENT AND ENGEERING CENTER DRAWINGS 5-19-6699 - Filter Unit, Gas-Particu
10、late, 400 CFM, 208 V, 400 Hz, b59 SPECIAL PACKAGING INSTRUCTIONS (SPI) P5-19-6699 - Filter Unit, Gas-Particulate: 400 CFM, 208 V, 400 Hz, M59 i (Copies are available from Commander, U.S. Army Information Systems Command, ATTN: ASQNC-AM-CT, Rock Island, IL 61229-7300.) 2 Provided by IHSNot for Resale
11、No reproduction or networking permitted without license from IHS-,-,-MIL-F-5 1 5 39A 2.2 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applic
12、able laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Materials and components. 3.1.1 Materials. AI1 materials cited on Drawing 5-19-6699 and subsidiary drawings shall conform to the specifications listed thereon and to the specific characteristics set forth on
13、 the drawings. 3.1.2 Components. All components of the filter unit shall conform to the specifications and drawings listed on Drawing 5-19-6699 and subsidiary drawings. 3.2 Manufacture and assembly. The filter unit shall be manufactured and assembled in accordance with Drawing 5-19-6699. 3.3 Perform
14、ance. 3.3.1 Cycling burn-in. The filter unit shall be cycled for a period of 3 hours during which time the airflow valve shall drive alternately to the fully open and then to the fully closed position (see 6.3) at a rate of 3 times per minute in resp.onse to an air pressure differential of 25 inches
15、 water gage (iwg) when tested in accordance with 4.4.6.2. 3.32 Operational characteristics. Prior to and after completion of the cycling burn-in, the filter unit shall meet the following operational characteristics: 3.3.2.1 Airflow valve closing. The airflow valve shall start to drive closed between
16、 1.2 and 1.7 iwg when tested in accordance with 4.4.6.3(b). and 1.7 iwg when tested in accordance with 4.4.6.3(c). 3.3.2.2 Airflow valve opening. The airflow valve shall start to drive open between 1.2 3.3.2.3 Warning horn and MASK indicator. The warning horn shall sound and the MASK indicator shall
17、 flash between 0.85 and 1.10 iwg when tested in accordance with 4.4.6.3(c) and 4.4.6.3(d). shall be a minimum of 11,000 rpm when tested in accordance with 4.4.6.3(e). article inspection in accordance with 4.3. 3.3.2.4 Fan assembly rotational speed. The fan assembly impeller rotational speed 3.4 Firs
18、t article. When specified (see 6.2), a sample shall be subjected to the first 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-52537A 42 M 7777706 04bb737 MIL-F-51539A 3.5 Reliability. Concurrent with the start of regular production, a product
19、ion sample of four filter units shall be tested in accordance with Task 302 of MIL-STD-781 and test plan IV-D of MIL-HDBK-781. The lower test mean-time-between-failure (01) shall be 467 hours and the upper test mean-time-between-failure (00) shall be 935 hours. The produc- tion sample shall be teste
20、d continuously in the configuration specified in 4.4.6.1 and 4.4.6.2 without temperature, vibration or input voltage cycling. An accountable failure shall be defined as any deviation from the requirements specified in 3.3.2. 3.6 Workmanship. The filter units shall be free from cracked, bent or dente
21、d metal sections and foreign matter (dirt, oil or viscous materials). 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or pur- chase order, the contractor is responsible for the performance of all inspection require- ments (examinations an
22、d tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right
23、to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance, All items shall meet all requirements of sections 3 and 5. The inspection set forth i
24、n 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 ensuring that all products or supplies submitted to the Government for a
25、cceptance comply with all require- ments of the contract. Sampling inspection, as part of manufacturing operations, is ari acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it co
26、mmit the Government to accept defective material. 4.1.2 Contractor assurance of compliance. The contractors quality program or de- tailed inspection system shall provide assurance of compliance of all characteristics with the applicable drawing, special packaging instruction, and specification requi
27、rements using, as a minimum, the conformance criteria specified herein. 4.1.3 Alternative inspection provisions. Alternative inspection procedures, methods, or equipment, such as statistical process control, tool control, and other types of sampling procedures may be used by the contractor when they
28、 provide, as a minimum, the level of quality assurance required by the inspection provisions specified herein. Prior to applying such alternative procedures, methods, or equipment, the contractor shall describe them in a written proposal submitted to the Government for evaluation and approval. (See
29、6.5.) When 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-required, the contractor shall demonstrate that the effectiveness of each proposed alterna- tive is equal to or better than the quality assurance provisions specified herein. In cases of di
30、spute as to whether the contractors proposed alternative provides equal quality assur- ance, the provisions of this specification shall apply. All approved alternative inspection provisions shall be specifically incorporated into the contractors quality program or de- tailed inspection system, as ap
31、plicable. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: (a) First article inspection (see 4.3) (b) Quality conformance inspection (see 4.4) 4.3 First article inspection. 4.3.1 Inspections to be performed. As determined by the Government, t
32、he first article sample items shall be examined and tested in accordance with this specification using either the first article procedures in this specification or other first article procedures which will be provided by the Government. As determined by the Government, the sample first article items
33、 may be subjected to any or all of the examinations and tests specified in this specifi- cation and be inspected for compliance with any or all of the requirements of the applicable drawings and special packaging instructions. 4.3.2 Sample. The first article sample shall consist of five filter units
34、 manufactured and packaged (when applicable) using the same methods, materials, equipment, and proc- esses as will be used during regular production. The first article sample shall be submitted for inspection and approval in accordance with the terms of the contract. 4.3.3 Inspection procedures. The
35、 first article sample of filter units shall be examined and tested for compliance with all the requirements of the applicable drawings, and sections 3 and 5 of this specification except for requirement 3.5. 4.3.4 Acceptance criteria. If any first article sample item fails to comply with any of the a
36、pplicable requirements, the first article sample shall be rejected. The Government reserves the right to terminate inspection upon any failure to comply with any of the re- quirements. The contractor shall obtain written approval from the contracting activity prior to proceeding with regular product
37、ion. 4.4 Quality conformance inspection. 4.4.1 Lotting. A lot shall consist of the items produced by one manufacturer, at one plant, from the same materials, under essentially the same manufacturing conditions, and at essentially the same time. 5 Provided by IHSNot for ResaleNo reproduction or netwo
38、rking permitted without license from IHS-,-,-MIL-F-51539A 4.4.2 Sampling. 4.4.2.1 For examination. Sampling for examination shall be conducted in accordance with the classification of characteristics in 4.4.5 and table I. 4.4.2.2 For test. Each filter unit shall be tested in accordance with 4.4.6. I
39、n addition, a production sample of four filter units shall be randomly selected from the first months production, This sample shall be tested separately from any other units in the lot. 4.4.3 Inspection procedure, 4.4.3.1 For examination. Sample filter units shall be examined in accordance with the
40、classification of characteristics in 4.4.5 and table I. 4.4.3.2 For test. Each unit shall be tested for cycling burn-in and operational character- istics using the procedures set forth in 4.4.6. Any unit which fails to meet the requirements for the cycling burn-in (3.3.1) or any of the operational c
41、haracteristics (3.3.2) shall be rejected. The production sample of four filter units shall be tested in accordance with 4.4.6 for conformance to 3.3.2. Then the filter units shall be tested continuously in the configura- tion specified in 4.4.6.1 and 4.4.6.2 for conformance to 3.5. The sample shall
42、meet the requirements of 3.5 and the criteria of test plan IV-D of MIL-HDBK-781 to be acceptable. 4.4.4 Inspection characteristics. Critical characteristics are characteristics whose non- conformance to specified requirements is likely to result in hazardous or unsafe conditions for individuals usin
43、g, maintaining, or depending upon the product or whose nonconfor- mance to specified requirements is likely to prevent performance of the tactical function of a major end item, Major characteristics are characteristics whose nonconformance to speci- fied requirements is likely to result in failure o
44、r to reduce materially the usability of the item for its intended purpose. Minor characteristics are characteristics whose nonconfor- mance to specified requirements is not likely to reduce materially the operation or usability of the item for its intended purpose. 4.4.5 Classification of characteri
45、stics. Quality conformance examinations and tests shall be as specified in the following classification of characteristics paragraphs. When specified herein, accept on O and reject on 1 attributes sampling inspection shall be per- formed on the designated characteristics using the stated levels in t
46、able I for selection of sample sizes. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-5 l 5 39A O O Lot size 2 to 8 9 to 15 16 to 25 26 to 50 51 to 90 91 to 150 151 to 280 281 to 500 501 to 1200 1201 to 3200 3201 to 10000 10001 to 35000 35001
47、 to 150000 150001 to 500000 500001 and over TABLE I. Sampling - I - * * * * * * * * * 1250 1250 1250 1250 L250 1250 - II * * * * * * * 315 315 315 315 315 490 715 ils 1 III * * * * * 125 125 125 125 125 192 294 294 345 435 spection levels and sample sizes IV * * * * 50 50 50 50 75 116 116 135 170 20
48、0 244 V * * * 32 32 32 32 48 73 73 86 108 123 156 189 - VI - * * 20 20 20 20 20 47 47 53 68 77 96 119 143 - VII - * 13 13 13 13 13 20 29 34 42 50 60 74 90 102 - * 8 8 8 8 12 19 21 27 35 38 46 56 64 64 Ix 5 5 5 5 7 11 13 16 19 23 29 35 40 40 40 - X 3 3 3 5 6 7 10 11 15 18 22 29 29 29 29 - *Indicates
49、one hundred percent inspection. If sample size exceeds lot size, perform one hundred percent inspection. XI 2 2 3 5 5 6 7 9 11 13 15 15 15 15 15 - Accept the lot -represented on zero nonconforming characteristics and reject the lot represented on one or more nonconforming characteristics for all inspection levels. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PARAGRAPH 4.4.5 (a) CATEGORY
