1、1 I-. f- . MIL-T-51461 42 9999906 0235262 4 MIL-T-51461(EA) 3 December 1980 (See section 6) /u-a3-a -, MILITARY SPECIFICATION TESTER, AIRFLOW, GAS-PARTICULATE FILTER UNIT, M39 This specification is approved for use by US Army Armament Research and Development Command, Department of the Army and is a
2、vailable for use by all Depart- ments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers one type of airflow tester for measuring airflow through hoses of gas particulate filter units with airflow rates up to 5 cubic feet per minute. 2. APPLICABLE DOCUMENTS 2.1
3、Issues of documents. date of invitation for bids specification to the extent The following documents of the issue in effect on or request for proposal, form a part of this specified herein. STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes. *US. GOVERNMENT
4、PRINTING OFFICE 1981-703-023/669 FSC 6680 : Beneficial comments (recommendations, additions, deletions) and any perti- : : nent data which may be of use in improving this document should be addressed: : to: Commander, US Army Armament Research and Development Command, ATTN: : DRDAR-TSC-S, Aberdeen P
5、roving Ground, MD 21010 by using the self-addressed : : Standardization Document Improvement Proposal (DD Form 1426) appearing at : : the end of this document or by letter. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c L- NIL-T-51qb1 M 7779706 0,
6、235263 b MIL-T-51461(EA) I i i US ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND I I i DRAWINGS AND TECHNICAL DATA PACKAGE LIST (TDPL) CHEMICAL SYSTEMS LABORATORY I TDPL 5-77-2120 - Tester, Airflow, Gas-Particulate Filter Unit, M39. PS 5-77-2120 - Tester, Airlfow, Gas-Particulate Filter Unit, M39. (
7、Copies of specifications, standards, drawings, and publications required by contractors in connection with specific procurementt functions should be obtained from the procuring activity or as directed by the contracting officer. ) 3 REQUIREMENTS 3.1 Materials and components. 3.1.1 Materials. All mat
8、erials cited on TDPL 5-77-2120 or on the subsidiary drawings shall conform to the specifications listed theron, or to the specific characteristics set forth on the drawings. 3.1.2 Components. All components shall conform to the specifications and drawings listed on TDPL 5-77-2120 and subsidiary draw
9、ings. 3.2 Assembly. The tester shall be assembled as specified on Drawing E5-77-2120. 3.3 Performance. The tester shall satisfy the pressure versus flow require- ments of table I when tested as specified in 4.3.1. Prior to test, the pressure shall be calibrated in accordance with 4.3.3. 3.4 Adhesion
10、 strength. After assembly and cure the alternate design (adhesive bonded) orifice ring when tested in accordance with 4.3.2 shall show no evidence of separation from the tube when subjected to a force of 50 pounds applied axially for a minimum of 5 seconds, from the end opposite the ring tend- ing t
11、o force the ring from the recess in the tube. 3.5 Workmanship. The tester shall be free of defects adversely affecting its appearance or serviceability. of parts, and finish shall exhibit high quality workmanship. clean, free of material chips, and all foreign materials. All welding, brazing, riveti
12、ng, identifying The unit shall be 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 2 Provided by IHSNot for ResaleNo reproduction or n
13、etworking permitted without license from IHS-,-,-MIL-T-5146L 42 a 7779706 O235264 W MIL-T-51461(EA) TABLE I. Performance Air Pressure. Airflow : (Inches of Water) : Pascals : (SCFM) : Liter/Sec : 0.7-+ - 0.1 : (174) : 1.8 - + .15 : (0.93 - + 0.07) : 1.0 - + 0.12 : (249) : 2.2 - + .15 : (1.04 - + 0.0
14、7) : 2.0 + 0.12 : (498) : 3.0 - + .15 : (1.42 - + 0.07) : * - , . 3.0 - + 0.12 : (746) : 3.6 - + .15 : (1.70 - + 0.07) : 4.0 - + 0.12 t (995) : 4.2 - + .15 : (1.98 - + 0.07) : 5.0 - + 0.12 : (1244) : 4.6 - + .15 : (2.17 - + 0.07) : NOTE: SCFM denotes standard cubic feet per minute (70F, 29.92 in Hg,
15、 0.0750 lb/ft3). Metric equivalents are given for general information only. requirements as specified herein. tract, the contractor may use his own or any other facilities suitable for the performance of the inpsection requirements specified herein, unless disapproved by the Government. inspections
16、set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Except as otherwise specified in the con- The Government reserves the right to perform any of the 4.1.2 Objective evidence. The contractor shall provide obje
17、ctive evidence acceptable to the contracting officer that the requirements.of 3.1 and section 5 for which specific inspection has not been provided in this specification have been satisfied. 4.2 Quality conformance inspection. 4.2.1 Lotting. A lot shall consist of the testers produced by one manu- f
18、acturer, at one plant, from the same materials, under essentially the same manufacturing conditions. 4.2.2 Sampling. 4.2.2.1 Examination and nondestructive tests. Sampling for examination shall be in accordance with MIL-STD-105. Each tester in the lot shall be examined for marking and serial number
19、and tested for performance. 4.2.2.2 Destructive tests. Sample calibrated orifice assemblies shall be taken at random from the lot in accordance with MIL-STD-105, level S-4 for test- ing for adhesion strength. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
20、 IHS-,-,-. - MIL-T-52462 42 m 7779706 0235265 T MIL-T-51461(EA) 4.2.3 Inspection procedure. 4.2.3.1 For examination and nondestructive test. Sample testers shall be examined in accordance with the classification of defects and MIL-STD-105. Each tester shall be examined for marking and serial number,
21、 and tested for performance (4.3.1). Any tester found defective shall be rejected. 4.2.3.2 For destructive test. Sample calibrated orifice assemblies shall be .tested for adhesion strength in accordance with 4.3.2, the acceptance number is zero. shall be put into production or delivered as part of a
22、 production quantity. No calibrated orifice assembly selected for the adhesion strength test 4.2.3.3 Classification of defects. (a) Tester, airflow, gas-particulate filter unit M39 (Dwg E5-77-2120). Categories . Defects Critical:- None defined Major : 101 102 103 104 105 106 107 108 100% inspection
23、Perf ormance Pressure gage calibration Marking and serial number missing or incorrect AQL 1.0 percent defective Components missing or incorrectly Clip assemblies and bracket locations Instruction card legibility or contents Protective finish missing or color Workmanship (3.5) ass embled incorrect in
24、complete incorrect 4 Acceptance standards 4.3.1 i I- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-T-5L46L g2 m 7979706 0235266 1 MIL-T-51461(EA) (b) Calibrated orifice assembly (Dwg D5-77-2115). Categories Critical: Major : 101 102 103 104 10
25、5 106 107 108 1 o9 110 111 112 113 Minor: 201 202 203 204 205 206 207 AQL AQL 1.0 percent defective Dimension (0.187) incorrect Dimension (0.080) incorrect Dimension (0.492) incorrect Angle (53“) incorrect Angle (6“) incorrect Dimension (0.109) incorrect Height (0.734) incorrect Dimension (0.094) in
26、correct Diameter (0.865) incorrect Diameter (0.723) incorrect Machine finish 63 incorrect Bur rs Diameter (0.765) incorrect c 2.5 percent defective Dimension (0.110) incorrect Dimension (0.056) incorrect Dimension (0.024) incorrect Angles (45“) incorrect Dimension (0.75) incorrect Overall length inc
27、orrect Diameter (0.641) incorrect (c) Adapter connector (Dwg C5-77-2109). Categories Defects Critical : None defined Major: AQL 1.0 percent defective 101 102 Workmanship (3.5) Components missing or incorrectly assembled 4.3 Tests. 4.3,1 Performance. The tester shall be connected in series with a sui
28、table test device consisting of a dry gas meter, pressure measuring device and a regu- lated air source. measuring device - + 0.5% full scale. The accuracy of the gas meter shall be + 2% and the pressure The air source shall be regulated until 5 Provided by IHSNot for ResaleNo reproduction or networ
29、king permitted without license from IHS-,-,-NIL-T-5L461 q2 777770b 0235267 3 the dry gas meter indicates the airflow values specified in table I. The corresponding air pressure values shall be checked for complance with 3.3. 4.3.2 Adhesion strength test. Calibrated orifice assemblies shall be tested
30、 to the requirements of 3.4 with a suitable spring or dead weight force measur- ing device. 4.3.3 Pressure gage calibration. The pressure gage shall be calibrated in accordance with calibration procedure TB 3-6685-100-50. & 5. PACKAGING 5.1 Preservation, unit packing, packing, and marking. Preservat
31、ion, unit packing, packing, and marking for all levels shall be accomplished in accord- ance with the Packaging Data Stock Number or its “PS“ part number (PS 5-77-2120). 6. NOTES 6.1 Intended use. The airflow tester covered by this specification is intended for use in measuring the airflow through t
32、he output air hoses of the following types of gas-particulate filter units: ABC-M7A1 M8 Series M13 M14 Hospital Six, Man, 12 CFM Tank, 12 CFM Tank, 20 CFM Armored Ambulance, 12 CFM 6.2 Ordering data. Procurement documents should specify the following: (a) Title, number, and date of this specificatio
33、n. (b) (see 5.1). (c) Applicable serial numbers. Selection of applicable level of packaging and packing required 6.3 Supersession data. This specification supersedes Edgewood Arsenal Purchase Description EA-T-1040 dated 17 September 1969. Custodian: Preparing activity: Army - EA Army - EA Project No. 6680-Al83 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
