1、 -, MIL-V-22272D 4 W 7777706 0383331 2 W MIL-V-222 72D (AS) 19 March 1982 SUPERSEDING MIL-V-22272C(AS) 28 Yarch 1980 MILITARY SPECIFICATION VISORS, NEODYMIUM LASER, PROTECTIVE FOR AIRCREWMANS HELMET . This specification is approved for use by the Naval Air Systems Command, Department of the Navy, an
2、d is available for use by all Depart- ments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for hard coated poly- carbonate laser protection visor lenses for the EEK-3/P dual visor assembly. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2
3、.1.1 Specifications, standards, and handbooks. Unless otherwise specified, the following specifications, standards, and handbooks of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) speci- fied in the solicitation form a part of this specific
4、ation to the extent specified herein. SPECIFICATIONS FEDERAL I. L-P-393 - Plastic Molding Material, Polycarbonate, Injection and PPP-B-636 Boxes, Shipping, Fiberboard. PPP-B- 6 7 6 - Boxes, Setup. Extrusion. MILITARY MIL-E-12397 - Eraser, Rubber-pumice (For Testing Coated MIL-H-85047 - Helmet Assemb
5、ly, HGU-34/P. Optical Elements). STANDARDS FEDERAL FED-STD-406 Plastic, Methods of Testing. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Specifications and Standards Department (Code 93), Nav
6、al Air Engineering Center, Lakehurst, NJ ment Proposal (DD Form 1426) appearing at the end of this document or by letter. Engineering 08733, by using the self-addressed Standardization Document Improve- I - FSC 8475 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
7、 from IHS-,-,-MIL-V-22272D 8LI H 777770b 0383332 LI 9 MIL-V- 222 72D (AS) MILITARY MIL-STD- 105 - Sampling Procedures and Tables for Inspection MIL-STD-129 MIL-STD- 130 - Identification Marking of U.S. Military Property, MIL-STD-810 - Environmental Test Methods by Attributes. Marking for Shipment an
8、d Storage. 2.1.2 Other Government documents, drawings, and publications. The following other Government documents form a part of this specification to the extent specified herein. DRAWINGS US ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND 7680606 - Tester, Abrasion, Optical Coating. NAVAL AIR SYSTEM
9、S COMMAND 765AS315 - Lens Subassembly, Neodymium, Inner, Dual Visor, EEK-3/P. 765AS316 - Lens, Inner, Neodymium Laser, Protective, Dual Visor, 76583292 - Holder, Neodymium Laser Protective Lens, Aircrewmans 765AS293 - Guide, Neodymium Laser Protective Lens, Aircrewmans 76568294 - Pin, Pivot, Neodymi
10、um Laser Protective Lens Holder, EEK-3/P. Helmet. Helmet. Aircrewmans Helmet. (Copies of specifications, standards, handbooks, drawings, and publications required by manufacturers in connection with specific acquisition functions should be obtained from the.contracting activity or as directed by the
11、 contracting officer.) 2.2 Other publications. The following documents form a part of this specifi- cation to the extent specified herein. The issues of the documents which are in- dicated as DoD adopted-shall be the issue listed in the current DoDISS and the supplement thereto, if applicable. AMERI
12、CAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ANSI/ASTM D 412 - Rubber Properties in Tension. ANSI/ASTM D 790 - Plastic and Electrical Insulating Materials, Properties of. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA
13、 19103.) (Industry association specifications and standards are generally available for reference from libraries. using Federal agencies.) They are also distributed among technical groups and 2.3 Order of precedence. In the event of a conflict between the text of this specification and the reference
14、s cited herein, the text of this specification shall take precedence. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-V-22272D 84 77777Ob 0383333 b MIL-V- 222 7 2D (AS) 3. REQUIREMENTS 3.1 Qualification. The visor furnished under this specific
15、ation shall be pro- ducts which are qualified for listing on the applicable qualified products list at the time set for opening of bids (see 4.3 and 6.3). 3.2 First article. When specified, a sample shall be subjected to first article inspection (see 4.4 and 6.4). 3.3 Materials. Materials shall conf
16、orm to applicable specifications and shall be as specified herein and on applicable drawings. by specifications, or which are not specifically described herein, shall be of the best quality, of the lightest practicable weight, and suitable for the purpose intended. Materials which are not covered 3.
17、3,l Visors. The plastic material used for molding the visors shall be in accordance with L-P-393, 3.4 Design and construction. The design and construction of the visor shall be in accordance with Drawings 765AS315, 765AS316, 76588292, 765AS293 and 76588294 (see 6.2. lc) . 3.5 Performance. 3.5.1 Ligh
18、t transmittance. The light transmittance of the visor, when calcu- lated as specified in 4.7.2, shall be not less than 55 percent throughout the criti- cal area. right eye of the same visor shall not differ by more than 20 percent. visible transmittance at the top of the visor shall not exceed the t
19、otal trans- mittance at the bottom of the visor. The transmittance of point “C“ for the left eye and point “C“ for the The total 3.5.2 Neutrality. The spectral transmittance curve of the visor, when calcu- lated as specified in 4.7.3, may vary between 430 and 730 nanometers (nm). average percentage
20、deviation within nine spectral bands shall be less than 30 per- cent. The 3.5.3 Chromaticity. The chromaticity coordinates X and Y of the visor, when computed as specified in 4.7.4, shall be within the limits indicated in figure 1. 3.5.4 Diffuse transmittance. The diffuse transmittance of the visor,
21、 when determined as specified in 4.7.5, shall not exceed 5 percent of the total visible transmittance. 3.5.5 Ultraviolet transmittance. The ultraviolet transmittance of the visor, when determined as specified in 4.7.6, shall be less than 5 percent in the erythemal band at 290 to 320 nanometers. 3.5.
22、6 Infrared transmittance. The infrared transmittance of the visor, when measured as specified in 4.7.7, shall be 0.001 or less (optical density 3.0 or greater) across the entire surface of the visor at 1064 nanometers wave length, 3.5.7 Prismatic deviation. 3.5.7.1 Vertical prismatic deviation. The
23、vertical prismatic deviation between point “C“ for the right eye and point “C“ for the left eye, when measured as speci- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-22272D 84 W 7777706 0383334 MIL-i- 22 2 72D (AS) fied in 4.7.8, shall not d
24、iffer by more than 0.25 diopters. shall be no abrupt transitions in prismatic deviation throughout the critical and semi-critical area of the visor. In addition, there 3.5.7.2 Horizontal prismatic deviation. The sum of the horizontal prismatic deviation at point “C“ for the right eye and point “C“ f
25、or the left eye, when measured as specified in 4.7.8, shall not exceed 0.75 diopters. between the horizontal prismatic deviation at point “C“ for the right eye and point “C“ for the left eye shall not exceed 0.18 diopters. abrupt transitions in prismatic deviation throughout the critical and semi-cr
26、itical area of the visor. The difference In addition, there shall be no 3.5.8 Spherical and cylindrical power. The spherical and cylindrical power, when measured as specified in 4.7.9, shall not exceed plus or minus 0.125 diopters at point “C“. 3.5.9 Critical vision area distortion. The distortion w
27、ithin the critical vision area, when examined as specified in 4.7.10, shall be within the acceptable limits shown in figure 2. 3.5.10 Windblast resistance. The visors, when tested as specified in 4.7.11, shall remain in the full down and locked position and there shall be no visible evidence of mate
28、rial failure. 3.5.11 Haze. The haze value of the visor shall not exceed 2.0 percent when tested as specified in 4.7.12. 3.5612 Abrasion resistance. After being subjected to the abrasion tests speci- fied in 4.7-.1.3, the increase in haze shall not exceed 6 percent and the decrease in transmittance s
29、hall not exceed 4 percent. 3.5.13 Adhesion of coating. The coating, when tested as specified in 4.7.14, shall not be removed, dislodged, or affected in any way. Removal or loosening of the coating shall be cause for rejection. 3.5.14 Crack propagation resistance (flexural strength). When tested as s
30、peci- fied in 4.7.15, the visor specimens shall exhibit a minimum flexural strength of 11,000 psi. fiber strain of 5 percent. This level shall be achieved without cracking or reaching the maximum 3.5.15 Impact resistance. The visor, when tested as specified in 4.7,16, shall not fracture. its entire
31、thickness) into two or more separate pieces or if any material visible to the naked eye is detached from the ocular surface. A vdsor shall be considered to have fractured If it cracks (through 3.5.16 Penetration resistance. The visor shall not be pierced when subjected to the penetration test specif
32、ied in 4.7.17, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-22272D 84 m 9777706 0383335 T m 3.6 -Identification of product. Each visor shall be identified in accordance with MIL-STD-130 and the applicable drawing. O 3.7 -Workmanship. All vis
33、ors shall be constructed to produce an item free from all defects which would affect proper functioning in service. conform to the quality and grade of product established by this specification, occurrence of defects shall not exceed the acceptance criteria established herein. The visors shall The 4
34、. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or.purchase order, the contractor is responsible for the performance of all in- spection requirements as specified herein. contract or purchase order, the contractor may use his own or any ot
35、her facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. the inspections set forth in the Specification where such inspections are deened necessary to assure supplies and services conform to prescribed requirements. Except as
36、otherwise specified in the The Government reserves the right to perform any of 4.2 Classification of inspection. The inspections specified herein are clas- sified as follows: . a. Qualification inspection. Qualification inspection consists of tests and examinations performed on samples submitted for
37、 approval as qualified products (see 4.3). b. w. First article inspection consists of tests and examinations performed on samples which are repre- sentative of the production item after award of contract to determine that the production item conforms to the require- ments of this specification (see
38、4.4). .c. Quality conformance inspection. Quality conformance inspection consists of tests and examinations performed on individual pro- ducts or lots with the requirements set forth in this specifi- cation (see 4.5). 4.3 Qualification inspection. Qualification inspection shall consist of the examin
39、ations and tests specified in table I, 4.3.1 Qualification inspection samples. The qualification inspection samples shall consist of four visors. specified in 6.3. marked with the following information: The qualification samples shall be forwarded as The samples shall be plainly identified by secure
40、ly attached tags Sample submitted by (name) (date) for qualification inspection in accordance with the requirements of MIL-V-22272D(AS) under authorization (reference autho- izing letter and number) (see -6.3). 4.3.2 Retention of qualification. The retention of qualification shall consist e of verif
41、ication to determine compliance of the qualified visor with the requirements 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-V-22272D 84 m 7777706 O383336 II of this specification. forward to NADC certification signed by a responsible official
42、 of management, at- testing that the listed product(s) is still available from the listed plant, and can be produced under the same conditions as originally qualified; i.e., same process, materials, construction, design, manufacturers part number, or designation; and meets the requirements of the cu
43、rrent issue of the specification. certification will be cause for removal from the QPL. After completion of the cer- tification review, the QPL shall be reprinted to show the date of validation. Every two years each manufacturer shall be requested to Failure to provide 4.4 First article inspection.
44、First article inspection shall consist of the following examinations and tests: Visual and dimensional examination Packaging and identification Light transmittance Neutrality Diffuse transmittance Prismatic deviation Critical vision area distortion 4.4.1 First article samples. Unless otherwise speci
45、fied, as soon as practicable, after the award of the contract or order, the manufacturer shall submit four visors, The samples shall be representative of the construction, workmanship, components, and materials to be used during production. When a manufacturer is in continuous pro- duction of these
46、units from contract to contract, submission of further first article samples on the new contract may be waived at the discretion of the acquiring activity (see 6.2.ld). article inspection does not exclude the requirements of submitting to the quality conformance inspection. the Government as directe
47、d by the contracting officer (see 6.2.le). Approval of the firstarticle samples or the waiving of the first The first article inspection samples shall be furnished to 4.4.1.1 First article information. Upon completion of the first article in- spection, all the applicable inspection reports, recommen
48、dations and comments perti- nent for use in monitoring production shall be recorded (DID No, DI-T-5329) and will be forwarded by the Government activity responsible for the inspection program (see 6.2.le) to the contracting officer. One visor shall be returned to the manufacturer for use in monitori
49、ng production. The other visors will be consumed or destroyed in the first article inspection and shall n0.t be considered as part of the quantity to be delivered under contract. 4.5 Quality conformance inspection. The sampling and inspection levels shall con- form to MIL-STD-105. Quality conformance inspection shall consist of the following: Visual and dimensional examination Packaging and identificapion Light transmittance Infrared transmittance Critical vision area d
