1、- - k/d/ MIL-F-514LIOA 42 W 9777906 0235242 9 I MIL-F-51440A(EA) 16 June 1981 SUPERSEDING MIL-F-51440(EA) 26 September 1977 P- MILITARY SPECIFICATION. FILTER, AIR, CHEMICAL-BIOLOGICAL: M46 This specification is approved for use by US Army Armament Research and Development Command, Department of the
2、Army, and is available for use by all Departments and Agencies of the Depart- ment of Defense. 1. SCOPE 1.1 This specification covers one type of filter for use in the emergency back-up protective filtering system of- the controlled protective outfit. 2. APPLICABLE DOCUMENTS 2.1 Issues of documents.
3、 The following date of invitation for bids or request for fication to the extent specified herein. SPECIFICATIONS FEDERAL QQ-S-781 - Strapping, Steel, Flat toxicological micro-climate documents of the issue in effect on proposal, form a part of this speci- and Seals. PPP-T-97 - Tape, Pressure-Sensit
4、ive Adhesive, Filament Reinforced. PPP-B-621 - Boxes, Wood, Nailed and Lock-Corner. PPP-B-636 - Box, Fiberboard. MIL I TARY MIL-B-46506 - Box, Ammunition Packing Wood, Wirebound. fr US. GOVERNMENT PRINTING OFFICE 1981-703-023/5196 FSC 4240 : Beneficial comments (recommendations, additions, deletions
5、) and any perti- : : nent data which may be of use in improving this document shou1.d be addressed: : to: Commander, US Army Armament Reserach and Development Command, ATTN: : DRDAR-TSC-S, Aberdeen Proving Ground, MD 21010 by using the self-addressed : : Standardization Document Improvement Proposal
6、 (DD Form 1426) appearing at : : the end of this document or by letter. ! f THIS DOCUMENT CONTAINS 9 PAGES- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-Sf44OA 42 4399406 0235243 O 9 MIL-F-5 1 44 OA( EA) STANDARDS MILITARY MIL-STD-105 - Samp
7、ling Procedures and Tables for Inspection by MIL-STD-129 - Marking for Shipment and Storage. MIL-STD-147 - Palietized and Containerized Unit Loads for 40“ by 48“ Pallets, Skids, Runners or Pallet-Type Base. MIL-STD-407 - Visual Inspection Guide for Rubber Molded Items. Attributes. DRAWINGS US ARflY
8、ARMPENT RESEARCH AND DEVELOPMENT COMMAND CHEMICAL SYSTEMS LABORATORY D5-3-95 1 - Filter, Air, Chemical-Biological: M46. C136-301-73 - Inhalation Resistance Test Fixture. (Copies of specifications, standards, drawings, and publications required by contractors in connection with specific procurement f
9、unctions should be ob- tained from the procuring activity or as directed by the contracting officer.) 2.2 .Other publications. The following documents form a part of this speci- fication to the extent specified herein. Unless otherwise indicated, the issue in affect on date of invitation for bids sh
10、all apply. N*lERICAN SOCIEPY FOR TESTING AND MATERIALS ASTM Standards Bi12 - Rubber Properties in Tension. D2248 - Rubber Property - Durometer Hardness. (Application for copies of the above publications should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadel
11、phia, PA 19103, ) 3 t REQUIREMENTS 3.1 Materials and components. 3.1.1 Materials. All materials cited on Drawing D5-3-951 and it subsidiary drawings shall conform to the specifications listed thereon. fications listed on Drawing D5-3-951 and its subsidiary drawings. 3.1.2 Components. All components
12、of the filter shall conform to the speci- 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-5LL!40A 42 m 7937306 02352L!4 2 m 3.2 Manufacture and assembly. The filter shall be manufactured and assembled to conform to Drawing D5-3-951. 3.3 Leaka
13、ge. The assembled filter without filter elements installed but including the quick disconnect junction shall not show evidence of leakage when pressurized with air to 50.0 + 5 inches of water and submerged in water and tested as specified in 4.4.4.1. 3.4 Inhalation resistance. Inhalation resistance
14、of the assembled filter with the filter element set (see 4.1.2) shall be no less than 40 and no more than 65 millimeters of water at a continuous inhalation of 85 liters per minute when tested as specified in 4.4.4.2. 3.5 Workmanship. The assembled filter without the filter element set installed sha
15、ll be free from contamination and imperfections such as grease, oil, dirt, foreign matter, damage or distortion of metal parts, malfunctioning hardware and in addition the rubber products shall be free of defects specified in MIL-STD-407. 3.6 Preproduction. Prior to the start of regular production,
16、a preproduc- tion sample of filter shall be produced in accordance with this specification for examination and test (see 4.3). 3.7 Physical properties of molded parts. The molded butyl rubber front and back housings shall meet the durometer hardness (Shore A) and tensile strength requirements of .Gr
17、ade RS 615 of MIL-STD-417 when tested as specified in 4.4.4.3. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. 4.1.1 Contractors responsibility. Unless otherwise specified in the con- tract, the contractor is responsible for the performance of all inspection requirements as specif
18、ied herein. Except as otherwise specified in the con- tract, 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 to perform any of the inspecttons
19、set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.2 Governments responsibility. The Government will be responsible for furnishing the filter element set, chemical-biological mask, M13 and M13A1 used duri
20、ng testing. / - i 4.1.3 Objective evidence. The contractor shall provide objective evidence acceptable to the contracting office that the requirements of 3.1 and section 5 for which specific inspection has not been provided in this specification have been satisfied. 3 Provided by IHSNot for ResaleNo
21、 reproduction or networking permitted without license from IHS-,-,-4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: (a) Preproduction inspection (see 4.3). (b) Quality conformance inspection (see 4.4). 4.3 Preproduction. 4.3.1 Sample. The pre
22、production of 50 filters shall be produced using the same methods, materials, and equipment as will be used during regular produc- tion, 4.3.2 Inspection procedure. 4.3.2.1 For examination and nondestructive tests. Preproduction sample of filter shall be inspected for compliance with the drawings an
23、d all the charac- teristics included in the classification of defects (see 4.4.3.4). The inhala- tion resistance test (4.4.4.2) shall be performed prior to any pressure leakage testing (4.4.4.1). 4.3.2.2 For destructive tests. Five back housings and five front housings shall be taken randomly from t
24、he preproduction samples before assembly and tested as specified in 4.4.4.3. The acceptance number shall be zero. 4.3.3 Acceptancelrejection criteria. The preproduction sample shall meet the inepection procedure specified in 4.3.2 to be acceptable. shall obtain written approval from the contracting
25、officer before proceeding with regular production. The contractor 4.4 Quality conformance inspection. 4.4.1 Lotting. A regular production lot shall consist of the filter pro- duced by one manufacturer at one plant from the same materials and under essentially the same manufacturing conditions. cedur
26、e used in regular production from that used in the preproduction sample shall be approved by the Government prior to its institution. Any change in equipment or pro- 4.4.2 Sampling. 4.4.2.1 For examination and nondestructive tests. Sampling shall be con- ducted in accordance with MIL-STD-105. 4.4.2.
27、2 For destructive tests. Five back housings and five front housings shall be taken randomly from the lot before assembly and tested as specified in 4.4.4.3. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-h _ NIL-F-514LlOA 42 W 7797906 0235246 6 4.
28、4.3 Inspection procedure. 4.4.3.1 For examination and nondestructive tests. Sample filter shall be examined aAd tested in accordance with the classification of defects and with I MIL-STD-105. The inhalation resistance test (4.4.4.2) shall be performed prior to any pressure leakage testing (4.4.4.1).
29、 4.4.3.2 For destructive tests. The back and front housings shall be tested for physical properties as specified in 4.4.4.3 to meet the reqiiirement of 3.7. The acceptance number is zero. 4.4.3.3 For critical defects. Each item in the lot shall be inspected for critical characteristics listed in the
30、 classification of defects. 4.4.3.4 Classification of defects. (a) Filter, air, chemical-biological: M46 (Drawing D5-3-951). Categories Defects Acceptance standards Critical: 1 Leakage 4.4.4.1 Major: AQL 1.0 percent defective 1 o1 102 Major defects listed in MIL-STD-407 103 Marking incorrect 104 Wor
31、kmanship not in MIL-STD-407 (3.5) 105 Inhalation resistance Component missing or incorrectly assembled Minor: AQL 4.0 percent defective 201 Minor defects listed in MIL-STD-407 (b) Packaging inspection (section 5). Categories Defects Critical : None defined Major: AQL 1.0 percent defective 1 o1 Conta
32、iner incorrect 102 Package incorrectly assembled 103 Container incorrectly closed 104 Marking missing, incorrect or illegible 5 4.4.4.2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-SL44OA 412 777970b 0235247 B MIL-F-5144OA( EA) 4.4.4 Tests.
33、4.4.4.1 Leakage. The assembled filter with emergency breathing adapter (see 6.3) attached shall be pressurized with air to 50.0 i- 5 inches of water and submerged just below the surface of the water (at room temperature) in each of two orientations (one with front facing upwards and one with front f
34、acing downwards) for at least 30 seconds each. after 15 seconds of submersion for either orientation shall be cause of rejection. Bubbles rising from this assembly The filter shall be thoroughly dried at the completion of the test. 4.4.4.2 Inhalation resistance. Inhalation resistance of the assemble
35、d fil- ter with filter element set shall be measured using the Inhalation Resistance T66t Fixture conforming to Drawing C136-301-73, 4.4.4.3 Physical properties of molded parts. The front and back housings shall be tested for tensile strength in accordance with ASTM D412 die D and durometer hardness
36、 in accordance kth ASTM D 2240. 5.1 Preservation (level A and B). Prior to unit packing (5.2.1 and 5.2.21, loosen the two screws on clamp assembly to alleviate pressure on rubber houe ing . with unit packed. 5.1-1 Cleaning. The filter shall be free of dirt and other foreign matter 5.2 Unit packing.
37、Level shall be as specified (see 6.2). 5.2.1 Level A. The filter shall be unit packed in accordance with Drawing 1)5-3-1008* 5.2.2 Level B. The filter shall be unit packed, one each, in a fiberboard box conforming to style FOL, grade WC, PPP-B-636, having inside dimensions of 9-3/8 by 3-3/8 by 12-1/
38、2 inches length, width, and depth, respectively. Eilter shall be supported in the box by a support cell as shown on Drawing D5-3-1008. The The box shall be closed in accordance with method III in the appen- dix to PPP-B-636. 5.3 Packing. Level shall be as specified (see 6.2). 5.3.1 Level A. The filt
39、er unit packed in accordance with 5.2.1, shall be packed, 5 per box in nailed wood boxes conforming to style 4, class 2, grade A, O to 50 lb load limit for type 1 or 2 load for overseas shipment, PPP-B-621, having inside dimensions of 18-3/8 by 13-1/4 by 9-7/8 inches length, width, and depth, respec
40、tively. As an alternate, wirebound boxes conforming to type I, class 2, grade A, MIL-B-46506 may be used. and strapped in accordance with the respective box specification, as appli- cable. Boxes shall be assembled, closed, Strapping used shall conform to class A or B, type I or IV, QQ-S-781. 6 Provi
41、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. r MIL-F-5LLl40A Ll2 W 7979906 0235248 T I MIL-F-51440A(EA) 5.3.2 Level B. The filter, unit packed as specified, shall be packed 5 per box, in fiberboard boxes conforming to style RSC, grade W5c, of PPP-B-6
42、36, hav- ing inside dimensions of 18-3/8 by 13-1/4 by 9-7/8 inches, length, width and depth, respectively. The boxes shall be closed in accordance with Method V closure requirements and reinforced by banding with tape conforming to PPP-T-97 in accordance with the Appendix to PPP-B-636. 5.4 Unitizati
43、on. When specified in the contract or order (see 6.2), filters, packed as specified in 5.3, shall be unitized in accordance with MIL- STD-147. full pallet load, they shall not be unitized. When quantities of packed filters are insufficient to constitute a 5.5 Marking. In conjunction with information
44、 furnished in the contract, marking shall be as specified herein. 5.5.1 Unit pack marking. The outer wrap of each unit pack shall be marked in accordance with Drawing D5-3-1008. 5.5.2 Packing and unitization marking. In addition to any special markings required by the contract, shipping containers,
45、and unitization loads shall be marked in accordance with MIL-STD-129. 6. NOTES 6.1 Intended use. This filter is intended for use with the toxicological microclimate controlled protective outfit and Filter Element Set, M13A2. 6.2 Ordering data. Procurement documents should specify the following: (a)
46、Title, number, and date of this specification. (b) (c) (d) Unitization, if required (see 5.4). (e) Preproduction: Level of unit pack and packing required (see 5.2 and 53). The laboratory to which samples are to be sent. (1) (2) (3) Time allowed for contractor submission of samples for Govern- Name a
47、nd address of test facility and shipping instructions Time required for the Government to notify the contractor ment test and evaluation before award of contract. when tesing is performed by the Government. whether or not sample is acceptable. 6.3 Emergency breathing adapter, part no. 9391-1. Emerge
48、ncy Breathing Adapter, Part No. 9391-1 from Air Lock, Inc., Milford, CN has been found to be satisfactory for the leakage test (4.4.4.1). t Custodian: Preparing activity: Army - EA Army - EA I Project Number 4240-A760 s 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
