1、INCH-POUND - UA O8 November 2000 SUPERSEDING 20 October 1995 A-A-5 8050 COMMERCIAL ITEM DESCRIPTION FLUORESCENT PENETRANT INSPECTION UNITS INTEGRALLY ASSEMBLED SINGLE UNi AND SEPARATE MODULAR STATION TYPES The General Services Administration has authonzed the use of this commercial item description
2、as a replacement for MIL-F-38762 (USAF) for all federal agencies. 1. SCOPE. This commercial item description covers fluorescent penetrant inspection units using the post-emulsification penetrant method. 2. CLASSIFICATION. This commercial item description covers three different types and six sizes of
3、 Fluorescent Penetrant Inspection Units, hereafter referred to as “unit or units.“ Note: The length dimension is left to right. while the width dimension is front to rear. 2.1 Types. The units shall conform to the following types: Type I - Integrally assembled single unit (Applicable only to Size i)
4、 Type II - Separate modular stations (Applicable to Size 2 - 6) 2.2 Sizes. The units shall conform to the following sizes: Size Designation Frame Sizes Tank Sizes 1 PT-18 2 PT-24 3 PT-36 4 PT48S (Short) 5 PT-48 6 PT-72 102“ long x 34“ wide x 36“ tall 24“ long x 34“ wide x 36“ tall 36“ long x 34“ wid
5、e x 36“ tall 48“ long x 34“ wide x 36“ tall 48“ long x 34“ wide x 36“ tall 72“ long x 50“ wide x 36“ tall 17“ long x 29“ wide x 14“ deep 22“ long x 29“ wide x 20“ deep 33“ long x 29“ wide x 26“ deep 43“ long x 29“ wide x 26“ deep 43“ long x 29“ wide x 26 deep 67“ long x 44“ wide x 26 deep Beneficial
6、 comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: Oklahoma City Air Logistics Center, 300 1 Staff Drive, Tinker AFB, OK 73 145-5990. I I AMSC N/A FSC 6635 Provided by IHSNot for ResaleNo reproduction or networking pe
7、rmitted without license from IHS-,-,-A-A-58050A 3. SALIENT CHARACTERISTICS. 3.1 First Article Testing. When specified a sample shall be subjected to first article inspection (see 5.2 and 7.5g.) 3.2 Design and Construction. The units shall be designed and constructed to facilitate efficient inspectio
8、n of parts and assemblies capable of being penetrant inspected. They shall be constructed to hold aircraft parts and inspection materials without deformation of the components. The units shall be designed and constructed so that dunng the normal inspection process there will be no leakage of penetra
9、nt, remover, developer, and/or water within the area bounded by the outermost extremities of the inspection unit; nor shall they leak from station to station, except for drain stations back to their respective reservoirs. 3.3 Tolerances. All tolerances for dimensional specifications for tank and fra
10、me sizes listed in this comercial item description are f 0.5 inch unless otherwise noted. 3.4 Stations. These inspection units, except Type I, shall consist of the following stations: penetrant tank, penetrant drain, pre-rinse, remover, remover-rinse, developer, developer drain, dryer, rest, and ins
11、pection stations. All stations shall be a modular design to enable customization of installation with end-user procured accessories, such as 90 degree roller stations. Type I shall consist of a penctrant tank, remover tank, rinse tank, developer tank, dryer, and inspection station, integrally assemb
12、led in one unit. 3.4.1 Penetrant, Remover, and Developer Stations. These stations shall consist of a kame, tank, cover, and for Type II a slatted grille made from open (Le. I, C, or hat section) aluminum extnisions. A drain connection and cutoff valve shall be provided at the bottom of the tanks usi
13、ng standard pipe sizes ( .5 inch for Size 1 increasing to 1.25 inch for Size 6) 3.4.1.1 Station Dimensions. The usable area inside the tank shall conform to the tank sizes listed in paragraph 2.2. The frame shall have overall outside dimensions not to exceed the frame dimensions listed in paragraph
14、2.2; height will exclude cover and cover handle. All tanks and covers shall be made of 16 gauge stainless steel. Type 304 stainless steel shall be used unless otherwise specified. 3.4.1.2 Type II Penetrant Station. The Type II station shall be equipped with an air-driven pump, with flow-on swivel no
15、zzle i.e. there shali be no canopy support post(s) in front of the station. A standard drain pipe connection and cutoff valve shall be provided at the bottom of the tanks. The length of station shall be 48“ for Sizes 2 - 5, and 72“ for Size 6. 3.4.3.1 Canopy. The remover-rinse station requires a fll
16、 canopy with side curtains, split to allow ingress and egrexugh the station. The curtain material shall be weather resistant, waterproof cloth meeting the intent of MIL-PW-20696, Type II, Class 2. The canopy shall provide a split top to allow access fi-om an overhead conveyor. The curtain material s
17、hall be attached to the canopy with snaps, or hook & pile fasteners, for easy removal and replacement. The canopy shall not allow more than 20 lux of light from the outside. 3.4.4 Penetrant and Developer Drain Stations. All drain stations shall consist of a frame, drain pan, and a full roller top gr
18、ille. The drain stations shall be structurally supported from below. Each station will conform to the requirements of paragraph 4.3.6. Design shall be such to insure that the penetrant or developer is completely directed back into its tank. The drain pan shall prevent fluids from running off inspect
19、ed materials and dripping on the floor. The total length and width of the rollcr top grille shall conform to the length and width of the station and conform to the height of adjacent stations, However, the roller top grill shall be made in sections of 24 inches or less to facilitate easy removal for
20、 cleaning of the drip pan. The length of the Type II Size 4 drain stations shall be 24 inches to reduce total system length. 3.4.5 Dryer Station. The dryer station shall incorporate a full roller grille to facilitate the movement of parts from the developer drain station to thc rest station. The dry
21、er cabinet shall be designed with a split roof to allow access from an overhead conveyor with both ends opened. (Not applicable to Type I units.) Insulation of the dryer to conserve energy is highly desirable. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
22、m IHS-,-,-A-A-58050A Type - Size - I II - 3 - - - 3.4.5.1 Split curtains shall be provided for each end. The curtain material shall be attached to the dryer ends with snaps, or hook & pile fasteners, for easy removal and replacement. A curtain shall be provided for the split roof when the overhead c
23、onveyer is not used. The curtain shall be attached to the dryer roof with sewn-in magnets. The curtain material shall be weather resistant, waterproof cloth meeting the intent of MIL-PRF-20696, Type II, Class 2. However, an insulating or reflective coating on the inside of the curtains to conserve e
24、nergy is highly desirable. Exterior Dimension interior Dimension Curtain Uimension Wattage (minimum) 18“ L x 34“ w x 18“T 1“L x 30“ w x 16“T 24“ L x 34“ w x 24“T 22“L x 30“W x 22“ 1 36“ L- 34“ L x 30“ W x 30“ T 48“ L x 34“ w x36“T 46“L x 30“ w x 30“ T 12 L x 34“ . w x 36“ 1 10“ L x 30“ w x 30“ 1 96“
25、 L x 50“ W x 36“ T 94“ L x 48“ w x 36“ I 30“ W X IF1 30“ W x 22“ T 3 O“ W x 3 O“ T 30“ w x 30T 30“ W x 30“ T 48“ w x 36“ I 1500 Watts 3000 Watts 5000 Watts O Watts S0U Watts 12,000 Watt 3.4.5.2 Dryer Dimensions and heater capacity. The interior & exterior dimensions, curtain dimensions, and heater c
26、apacity shall be as specified in TABLE I. TABLE I 3.4.5.3 Thermostats. The thermometer-thermostat shall be scaled from 100oF to 2000F, in increments of 5oF. The thermostat shall control the dryer temperature to plus or minus 5F of this setting. The thermostat will be protected against accidental adj
27、ustment. 3.4.5.4 Dryer Dnp Pan. The dryer shall have a drip pan that can be easily removed for cleaning any fallen developer residue. 3.4.6. Rest station. The station shall be similar to the drain station, paragraph 3.4.4. 3 -4.7 inspection Station. Type I inspection station will have one mercury-va
28、por inspection light. The Type II inspection station shall be provided with a full roller grille table top, dust pan, exhaust fan, two mercury-vapor inspection blacklights, two overhead fluorescent-tube blacklights for area illumination, an overhead white light, and a canopy. The canopy shall allow
29、access of an overhead conveyor, and not allow more than 20 lux of light from the outside. The curtain material shall be attached to the canopy with snaps or hook & pile fasteners for easy removal and replacement. The dimension of the inspection station shall be as specified in TABLE II. 4 Provided b
30、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-58050A 1 ype - Size - II - 2 II - 3 - - - Exterior Dimension iabletop ilimension Roller ciri11 e Uimension 18“ L x 34“ w x 18“ min T 16“ L x 30“ W x 16“ T 48“ L x 48“ W x /6“ min T 48“ L x 30“ W x 22“ T 48“ L
31、 x 48“ W x 16“ min T 1 48“ L x 30“ W x 30“ T f2“ L x 60“ W x 16“ min T 12“ L x 36“ W x 30“ T 12“ L x 60“ W x 16“ min 1 /Z“ L x 36“ W x 3U“ 1 96“ L x IZ“ w x 1“minT 9PL x48“w x36T N/A 48“ L x 23“ W 48“ L x 23“ W 72“ L x 3l1! w IT L x 31“ w 96“ L x 42“ W TABLE II 3.4.7.1 Dust pan. The dust pan shall b
32、e located directly under the table top for the exclusion of light. It shall cover the entire area below the table top. 3.4.7.2 Roller top grille. The roller grille table top shall have a material stop that can be positioned at either end of the inspection station. The full roller gnlle table top wor
33、king width and length shall be as above in 3.4.7. 3.5 Voltage. All wiring, insulation, and electrical components shall be in compliance with the National Elecmde, NFPA 70. The Type I dryer heater elementls) shall be capable of operating from both 120 and 240 VAC, 50 or 60 Hertz. The Type II Size 2,
34、Type TI Size 3, The Type II Size 4, and Type TI Size 5, dryer heater element(s) shall be capable of operating from both 208 and 240 VAC, 50 or 60 Hertz. Type II Size 6 dryer heater element(s) shall be capable of operating from 208,240 and 480 VAC, 50 and 60 Hertz. The heater elements shall be the on
35、ly components to operate directly from line voltage above 120 VAC. Thc initial line operating voltage shall be 240 VAC unless otherwise specified by the procuring activity. The rest of the equipment shall operate from 1 10-1 SOV, 50 or 60 Hertz, single phase AC source and shall be Ground Fault Circu
36、it Interrupter (GFCI) protected. The unit shall require a single connection to each source (one 120V and one 208V, 240V, or 480V source). 3.6 Controls. Each black light, white light, exhaust fan, and dryer heater circuit shall operate independently of any other unit and shall have a separate control
37、 or switch. Each line control or heater or dryer control shall be equipped with an indicator light at a single location at/nenr the dryer. However, it is desirable to deactivate the entire unit with a single switch. 3.7 Nozzles. The nozzle at the penetrant tank shall be a swivel, flow-on type, that
38、does not cause atomization of the penetrant. The nozzles at the pre-rinse and remover-rinse stations shall have a spring- operated, lever-type hand swivel valve. Nozzles in the pre-rinse and rernover-rinse stations shall be of the fan-shaped coarse spray type. Nozzles that have adjustable spray patt
39、ers shall not be used. The delivery ratc of thc nozzles shall be not less than 3 gallons per minute, and not more than 6 gallons per minute at 40 PSI pressure. 3.8 Blacklights. The blacklights which are employed to fluoresce the inspection medium shall have an initial intensity of 2000 microwatts pe
40、r square centimeter at 15 inches. The blacklight wavelength shall be in the range of 320 to 380 nanometers, with st peak intensity of 365 nm. The lights shall be supported by adjustable brackets and directed toward the part to be inspected. The lights shall be readily dismountable from the adjustabl
41、e brackets without removing or loosening and fasteners for fixtures, and have an insulated handle for inspector use. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-58050A 3.9 Baskets. Six wire baskets, with handles, made of corrosion resistant
42、 stainless steel shall be provided withzt. They shall have hooks on one side to suspend the basket from the inside-fiont-top of the tank. Unless otherwise specified, the baskets shall have dimension of 12 inches long x 8 inches wide x 6 inches deep and a maximum mesh opening of 314 inch square. 4. R
43、EGULATORY REQUIREMENTS. The contractor is encouraged to use recovered materials in accordance with Federal Acquisition Regulation (FAR) 23.403 to the maximum extent practical. 4.1 Metric Products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured
44、 using inch-pound units, providing they fall within specified tolerances using conversion tables contained in the latest revision of Federal Standard No. 376, and all other requirements of this Commercial Item Description are met. If a product is manufactured to metric dimension and those dimension
45、exceed tolerances specified in the inch-pound units, a request should be made to the contracting officer and AFRLMLS-OL to determine if the product is acceptable. 5. QUALITI ASSURANCE PROVISIONS. 5.1 Contractor Certification. The contractor shall cem and maintarn substantiating evidence that the pro
46、duct offered meets the salient characteristics of this Commercial Item Description, and that the product conforms to the producers own drawings, standards, and quality assurance practices. The government reserves the right to require a government witnessed, pre-award, sample verification test at the
47、 contractors site to insure conformance prior to first delivery and thereafter as may be otherwise provided for under the provisions of the contract. 5.2 First Article Inspection. First article inspection shall be performed on one complete fluorescent penetrant unit when a first article sample is re
48、quired (see 3.1 and 7.5g). This inspechon shall include the requirements of paragraph 5.3, Test Methods. 5.2.1 Acceptance Tests. Acceptance tests are intended to verify that production units are similar to the applicable specifications. The following are the minimum inspection requirements for produ
49、ction acceptance: paragraph 5.3.1 and paragraph 5.3.2 5.3 Test Methods. The following test shall be conducted in an ambient temperature range of 68-95 degrees Fahrenheit, and in the order given. 5.3.1 Examination of Product. The inspection units selected for inspection shall be inspected during manufacture and upon completion to determine compliance with the requirements of the contract and this specification with respect to material, workmanship, and dimensions. 5.3.2 Tanks. All tanks, d
