1、P t Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Engineering Specifications and Standards Department (Code 93), Naval Air Engineering Center, Lakehurst, New Jersey 08733, by using the self ad
2、dressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or letter. FSC 6630 Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-22612C(AS) SPECIFICATIONS MI
3、LITARY MIL-T-5624 -Turbine Fuel, Aviation, Grades JP-4 and JP-5 MIL-D-81248 -Detector Pad, Free Water MIL-S-81282 -Standard, Free Water Detector STANDARDS MIL-STD-130 -Identification Marking of U.S. Military Property MIL-STD-794 -Parts and Equipment, Procedures For Packaging and Packing of DOD-STD-1
4、399/300 -Interface Standard For Shipboard Systems Section 300 Eletrical Power, Alternating Current (Metric) (Copies of specification, standards, drawings, and publications, re- quired by suppliers in connection with specific acquisition functions should be obtained from the acquiring activity or as
5、directed by the contracting officer . ) 2.2 Other publications. The following document forms a part of this specification to the extent specified herein. Unless otherwise indi- cated, the issue in effect on date of invitation for bids or request for proposal shall apply. THE NATIONAL FIRF, PROTECTIO
6、N ASSOCIATION (NFPA) NEPA Publication 70-1978 -National Electrical Code (Application for copies should be addressed to the National Fire Protec- tion Association, 470 Atlantic Avenue, Boston, MA 02110.) (Technical society and technical association specifications and stan- dards are generally availab
7、le for reference from libraries. They are also distributed among technical groups and using Federal agencies.) 3. REQUIFWNTS 3.1 First Article. The detectors f,urnished,under this specifica- tion shall be products which have been inspected and have passed the first article inspection specified herei
8、n (see 4.3). 2 Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-D
9、-22632C bb W 9977906 0330983 W I 3.3.6 Light sensitive cell. The light sensitive cell shall be hermetically sealed against moisture and contact with jet fuel. The cell shall be mounted stationary within the filter receptacle housing. Wires entering the light sensitive cell housing shall enter the ce
10、ll housing through a horizontal side surface of the housing. 3.3.7 Test Dad (tvDe III onlv). The twe 11 detector shall be I comparison with the free water standards under ultraviolet light (3660a. 3.3.8 Vacuum receivers. The vacuum receivers shall be large enough to contain 800 milliliters of filter
11、e the receiver shall permit complete drainage of the receiver. I 3.3.9.1 Power reaurements. The detector shall be designed to oDerate I I DOD-STD-1399/300. I 3.3.9.3 Electrical components safety. Voltage and or amperage regu- I lating devices, transformers and capacitors shall be sealed with a fuel
12、resistant material to prevent contact of fuel or vapors with internal compo- nents of the devices. All other electrical components and connections shall be insulated to protect against shock to personnel. I 3.3.9.4 Motor (types II and III). The motor shall be an explosion proof type with a current l
13、imiting device to prevent overheating in the event of pump malfunction. The motor shall comply with the National Fire Protec- tion Association (NFPA) Publication: 70-1978 National Electric Code Article 500 for group D, class I, division 1 locations. 3.3.9.5 Ammeter. The ammeter shall be capable of b
14、eing read, without interpolation, in increments of 0.001 milliamperes between zero and one milliampere. The cord shall be capable of being removed from the cabinet for internal storage. 3.3.9.7 Circuit Drotection. Circuit Drotection shall consist of panel mechanical type circuit breakers, which can
15、be reset from the exterior of the cabinet. 3.3.10 Finish. -* Unless otherwise specified, painting and finishing of the detectors shall be in accordance with the suppliers standard practice, .I I I Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking per
16、mitted without license from IHS-,-,-MIL-D-22bL2C 66 W 9999906 013092 b MIL-D-22612C (AS) provided the following minimum criteria are met or exceeded: All surfaces to be painted shall have been cleaned so as to be free of all foreign matter detrimental to painting. At least one coat of primer and one
17、 top coat or equivalent shall be applied. 3.3.10.1 Color. Unless otherwise specified by the acquiring actiivty, the detectors shall be furnished in the manufacturers standard color. 3.3.11 Accessory items. 3.3.11.1 General. All components necessary for filtration and measur- ng of transmitted light
18、shall be incorporated into each detector. Compart- ments, holders, and a drawer shall be provided for storage of accessories, such as membrane filters, sampling bottle, squeeze bottle receiver assembly, forceps, tygon plastic drain tubing, two calibration (Wratten) filters, spare fuses, and spare la
19、mp. 3.3.11.2 Bottle receiver assembly. The bottle receiver assembly, pro- vided with each unit, shall consist of a bottle receiver, membrane filter holder, and a ground cable. 3.3.11.3 Sample bottle. A sample bottle with a one-liter capacity shall be provided. The bottle shall be constructed of a sh
20、atterproof materi- al which shall be resistant to kerosene. The mouth of the bottle shall be capable of being inserted into the mouth of the vacuum receiver without leakage and shall also be provided with a screw-type cap. 3.3.11.4 Wash bottle. A wash bottle with a 0.5 1it;er capacity shall be provi
21、ded. The bottle shall be constructed of a flexible shatterproof materi- al which shall be resistant to kerosene. A fixed dispensing tube type shall be included with the wash bottle. 3.3.11.5 Miscellaneous. Each detector shall also be equipped with forceps (flat tipped), 100 filters (Millipore Corpor
22、ation catalog number DAW 04700 or equal), 4 feet of tubing for drainage of receiver, 1 spare lamp, 1 spare frosted glass and 2 spare fuses (except if mechanical circuit breakers are employed). Type III detectors shall be equipped with 100 free water detector pads (47 mm) conforming to MIL-D-81248. T
23、he pads shall be supplied to the contractor as Government furnished material (see 6.4). 3.4 Performance. 3.4.1 Current output. The light sensitive cell shall have a current output of 4.8 k 0.3 microamperes per 10.8 LUX with a linearity factor of 0.80 minimum. 3.4.2 Light source. 3.4.2.1 - Light bulb
24、. The light bulb shall be easily accessible for field replacement without the use of tools. Y 5 Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-D-22b12C 66 7779906 01309A3 A I MIL-D-22612C(AS) l 3.4.2.2
25、Light intensity. The intensity of the light shall be mechani- cally or electrically adjustable from the exterior of the cabinet top, so as to provide a meter reading over the range of 0.55 to 0.80 milliamperes. 3.4.2.3 Stabilify. After a warmup period of three minutes, when set at a meter reading of
26、 0.6, the meter reading shall not drift by more than 0.005 milliamperes in a period of three minutes and shall not fluctuate by more than3 0.002 milliamperes. 3.4.3 Filtration time. The filtration system of the detectors shall be capable of filtering an 800 milliliter sample of JP-5 fuel conforming
27、to MIL-T-5624 through two 0.65 micron membrane filters in series in a maximum of two and one-half minutes using a minumum vacuum of 25 inches of mercury (see 4.5.2.2). I 3.4.4 Free water standard (type III only). There shall be no de- crease in flourescence at the edges of the standard (as a result
28、of position- ing of the free water standard) when the type III detector is tested as described in 4.5.2.1.2 and 4.5.2.4. The standard shall conform to MIL-S- 81282 and shall be Government furnished (see 6.4). 3.4.5 Viewer assembly (type III only). The viewer assembly on the type III detector shall h
29、ave the capability of indicating water content of fuel samples in parts per million when tested in accordance with 4.5.2.4. The viewer shall indicate the water content by comparing the detector pad with the four fluorescing standards. If water droplets are present in the sample, they will disperse o
30、n the pad and cause the treated pads to fluoresce under an ultraviolet light. -1 3.5.1 Identification of product. The switches, viewers, accessory slots and other functional external parts of the detectors shall be legibly and durably marked in accordance with MIL-STD-130. I I 3.6 Service data packa
31、ge. The service data package consisting of materials and manuals, as described below, shall be furnished, in an enve- lope, with each unit. * 3.6.1 Standards (type III only). A total of 3 sets of standards conforming to MIL-S-81282 shall be provided with each type III unit. The standards shall be in
32、cluded in the envelope. Instructions for attaching the standard to the unit shall be included. The standards shall be supplied to the contractor as Government furnished material (see 6.4). I 3.6.2 Technical manual. Each data package shall contain two copies of an approved technical manual (see 4.3.1
33、.1). The manual shall include a list of component parts, complete instructions for installation, operation, replacement and maintenance of the unit. I Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-D-22b
34、L2C 66 M 7777706 OL307B4 T m 3.6.3 Calibration curves. Each detector shall have its own cal- ibration curve. This curve shall show the relationship between the differ- ence in the detector milliammeter reading and the actual amount of contami- nant in the fuel over the entire scale, expressed in mg/
35、liter or mg/gal. This curve shall appear in the manual accompanying the unit and shall bear the same serial number as the unit. The calibration curve shall be checked in accordance with 4.5.2.3. 3.6.4 Wratten filters. Two Kodak Wratten gelatin neutral density filters (N.D. 0.10 and N.D. 0.20) shall
36、be provided with each unit. All Wratten filters shall be calibrated by the detector manufacturer in accord- ance with 4.5.2.3 and shall be assigned a number equivalent to a given contam- ination level. The filters will then be included with the detectors. 3.7 Workmanship. The detectors, including al
37、l parts and acces- sories, shall be fabricated and finished in a workmanlike manner and shall be free from blemishes, defects,*burrs, sharp edges and incorrect dimensions and markings of parts and assemblies. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specifi
38、ed in the contract, the contractor is responsible for the performance of all inspec- tion requirements as specified herein. Except as otherwise specified in the contract, the contractormay use his own or any other facilities suitable for the performance of the inspection requirements specified herei
39、n, 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 services conform to prescribed requirements. 4.2 Classification of inspections. The inspectio
40、n requirements specified herein are classified as follows: a. b. First article inspection (see 4.3). Quality conformance inspection (see 4.4). 4.3 First article inspection. First article inspection of the detectors shall consist of all tests and examinations of 4.5.1 through 4.5.2.4 (see 6.2.1). 4.3
41、.1 First article sample. The first article sample shall be one (1) complete unit for test, including the service data package as specified in 3.6. The first article sample shall be a representative production item. The sample shall be plainly identified by a securely attached durably marked tag cont
42、aining the following information: FIRST ARTICLE SAMPLE DETECTOR Contaminated Fuel Types I, II or III, as applicable Manufacturers Designation or Number Name of Manufacturer Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license f
43、rom IHS-,-,-Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. Packaging inspection. r Defect Packaging Not level required by contract or purchase order. Material or construction not as specified. Packin
44、g Not level required by contract or purchase order. Material or construction not as specified. Any nonconforming component, incomplete closures, inadequate strapping, bulged or damaged containers. I Less than specified or indicated quantity per ship- ping container. Markings Warning labels or markin
45、g missing. Omitted, illegible, incorrect, incomplete or not in accordance with contract requirements. 4.5 Test methods. 4.5.1 Visual inspection. Each detector shall be examined internally and externally to determine conformance with table II and other requirements of this specification. TABLE II. Vi
46、sual inspection. I I DEFECT Unit not complete with all component parts. Unit not free of cracks, tears, dents, or distortion. Unit not free of rocking when placed on a flat surface. Unit not free of sharp edges or burrs. Component parts not properly secured to hdusing. Type III detector test pad hol
47、der not capable of being inserted into Line cord not adequately secured within housing. Line cord not free of cuts, tears, or abrasions. Blades of plug (line cord) not properly aligned. Type III detector test pad holder not capable of being held in closed Identification marking not complete, legible
48、 or permanent. Finish not free of scratches, chips, or blisters. Unit not free of dirt, grease, or foreign matter. Service data package not complete with applicable items in 3.6. housing, or secured within housing, or removed from housing. position when viewer assembly is tipped to any angle. Licens
49、ed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.5.2 Operational tests. 4.5.2.1 Electrical. 4.5.2.1.1 Light intensity (types I, II and III detectors). When the light intensity is adjusted to its highest value, a reading of 0.80 or higher shall be obtained on the milliameter. When the adjustment is set to its l
