1、MIL-G-22332B 8L( = 379370b 0383332 3 e /- _- -. rB i MIL - G -22 PSB ( AS) 3 July i969 SUPERSEDING MIL-G-22112A(Wep) 22 July 1963 ? . MILITARY SPECIFICATION GLASSES, DARK ADAPTATION This specification has been approved by the Naval Air Systems Command, Department of the Navy. 1. SCOPE 1.1 Scope - Th
2、is specification covers the requirements for one type of plastic glasses for dark adaptation purposes. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposals, form a part of this specification to the extent specified herein.
3、 SPECIFICATIONS A. Federal QQ-B-613 QQ -W -321 uu-P-553 PPP-B-636 PPP-B-665 PPP-B-676 STANDARDS Military MIL-STD-10 5 Brass (Copper-Zinc Alloy), Leaded and Non-Leaded; Plate, Rolled Bar, Sheet and Strip Wire, Brass Paper, Wrapping, Tissue Boxes, Fiberboard Boxes, Paperboard, Metal Stayed Boxes, Set-
4、up, Paperboard I Sampling Procedures and Tab1 by Attributes for rnsp ction Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-22112B 8L( W 9777706 0383333 O STANDARDS Military (Continued) MIL-S%D-129 . Marking for Shipment and Storage (When reques
5、ting any of the applicable documents, refer to both title and number. All requests should be made via the cognizant Government quality assur- ance representative. Copies of this specification and other unclassified specifica- tions, standards, and drawings required by the contractors in connection w
6、ith specific procurement functions should be obtained upon application to the Command- ing Officer, Naval Publications and Forms Center (Code 1051), 5801 Tabor Avenue, Philadelphia, Pennsylvania 19120. ) 3. REQUIREMENTS 3.1 First article inspection I- Unless otherwise specified, the dark adaptation
7、glasses furnished under this specification shall be a product which has been inspected and passed the first article inspections specified in Section 4. 3.2 Materials - Materials shall conform to applicable specifications as specified herein. Materials for which there are no applicable specifications
8、, or which are not specifically described herein, shail be of the best quality and entirely suitable for the purpose intended. * 3.2.1 Frame - 3.2.1.1 Brow bar and nose bridge - The brow bar and nose bridge shall be injection molded from a first grade, nearly opaque and black virgin cellulose acetat
9、e material. Not more than 15 percent of imperfect parts, sprues, or runners of the same composition material shall be used with the virgin molding material. 3.2.1.2 Temple butt - The temple butt shall be injection molded from a first grade, virgin cellulose acetate butyrate material that is nearly o
10、paque and dark, Not more than 15 percent of imperfect parts, sprues, or runners of the same composition material shall be used with the virgin molding material. 3.2.1.3 Tubing - The tubing used for the temple shall be extruded from clear cellulose acetate butyrate material. 3.2.1.4 Rivets - The rive
11、ts used to secure the temple to the brow bar shail be fabricated from brass wire conforming to QQ-W-321, Composition B. 3.2.1.5 Temple hinge - The temple hinge shall be fabricated from brass or 10 percent nickel silver. When brass is used it shail conform to the requirements f Provided by IHSNot for
12、 ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-223L2B 8q W 377730b 0383334 2 W - MATERIAL Optical metal Nickel Silver MIL-G-22112B( AS) COPPER TIN ZINC NICKEL 90% 6% 4% - 65% 25% - 10% of QQ-W-321, Composition A, or QQ-B-613, Composition 1. When nickel silver is us
13、ed it shall conform to the nominal composition specified in Table I. 3.2.1.6 Metal butt and cable (core and winding) - The metal butt and cable (core and winding) shall be fabricated from optical metal or nickel silver of nominal composition as shown in Table I. TABLE I NOMINAL COMPOSITION OF OPTICA
14、L METAL AND NICI(EL SILVER 3.2.2.1 Spectral transmittance - Between the wavelengths 400 to 580 milli- microns, the lens shall transmit no greater than 0.2 percent of the incident light. For wavelengths from 580 to 760 millimicrons the rod and cone stimulation factors shall be determined in accordanc
15、e with Section 4. The sum of the products of the constarlt factors for the cones and the transmittances of the filter at the stated intervals shall equal or exceed 115 units and shall be at least 18.0 times greater than the sum of the products of the constant factors for the rods and the transmit- t
16、ance of the filters at the same wavelengths. 3.2.2.2 Optical quality - The lens shall be of good optical quality so that visual acuity shall not be materially changed. (See 4.5.4.) 3.2.2.3 Visible defects - The lens material shall be clean and free from superficial undulations, lenticulations, stria
17、e, bubbles, seeds, scratches, opaque particles, or any other imperfections detectable with unaided vision which will impair the visual properties. (See 4.5.5.) 3.3 Design and construction - 3.3.1 Frame - The frame shall conform to the design, shape and dimensions shown on Figures 1 through 4 and the
18、 following: 3.3.1.1 The vertical and horizontal angles of the Wo tempIes shown on Figures 1 and 3 shall be substantially matched and shall provide a satisfactory fit at the mitered joints with the brow bar. The assembly shall be such that the lens will be supported in the proper position before the
19、eyes of the wearer. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-22332B 84 7799706 0383335 4 MIL-G-2211 2R(AS) R 1 /TEMPLE 2- .OS9 DIA. BRASS TUBULAR OR HOLLOW POINT RIVETS / TOP VIEW - LOSE BRIDGE FRONT VIEW DIMENSIONS IN INCHES. TOLERANCE:
20、 k. 010. FIGURE 1. DARK ADAPTATION GLASSES, ASSEMBLY Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a i! ,. .- 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-G-22LL2B L1 W 7779706 0383337 Pro
21、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i MIL-G-22132B 84 m 7777706 0383338 T IL-G-22112B(As) !F-f 32 L l-, LENS SECTION A-A BRIDGE-NOSE DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: WHOLE NUMBERS AND FRACTIONS *1/64, DECIMALS f.
22、 010, ANGLES *1/2*. FIGURE 4. LWS AND NOSE BRIDGE DETAILS 7 Il Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-22LL2B 84-m 7779706 0383337 3 MIL-G-22 11 2B( AS) 3.3.1.2 The mating barrels of the hinges skiall form a snug fit and shall be held t
23、ogether with a rivet so that there is no appreciable looseness to permit angular up and down movement of the temple with respect to the front. The rivet shall be permanently and securely set. 3.3.1.3 The plastic temple butt and tubing shall be securely and perma- nently cemented together. The tubing
24、 shall be permanently heat-sealed on the end. 3.3.1.4 The hinge shall be securely spot-welded, soldered, or securely riveted to the temple butt insert. 3.3.1.5 After fabrication, the hinge and temple shall be nickel plated prior to application of plastic covering on the temple. 3.3.1.6 The brow bar
25、shall be securely and permanently attached to tue lens by 5 pins, and the nose bridge securely and permanently cemented to the lens, 3.3.2 Lens - - 3.3.2.1 The lens shall be blanked or cut to size, shape, and contour as shown in Figure 4, The edges of the lens shall be free from cracks or roughness
26、and shall have a smooth finish. 3.3.2.2 After complete assembly the lens shali be clean. No labels or identification markings shail appear on the lens. ,I 3.4 Aging - The assembled glasses shall pass the aging test des- cribed in Section 4. 3.5 Lens coverirg - Both sides of the lens of the finished
27、glasses shall be covered with smooth finish paper to prevent damage to the lens. The lens covering shall be die-cut from one piece to the size and shape which would permit folding flat on itself to completely cover both front and back of lens excluding the brow bar. - 3.5.1 Markings on lens covering
28、 - Instructions covering precautions and care of lhe lens and glasses shall consist of the specified wording, and shall be placed in the location on the outside front of the lens covering, as specified. 3.5.1.1 The words “Dark Adaptation Glasses - Instructions“ shall be placed above the nose bridge.
29、 3.5.1.2 On the left half of the lens covering, the following wording shall be placed: .- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c UIL-G-22LL28 8L1 m 7777706 0383320 8 m MIL-G-221 12B(AS) “DO not scratch the lens. The plastic lens of these g
30、lasses is shatter-resistant, safer, and lighter than glass lenses, but easily scratched if abused. When not in use, protect against dirt or hard objects. To make the lens last longer, remove dust and fingor- prints by (1) washing with water or (2) steaming with breath. 3.5.1.3 On the right half of t
31、he lens covering, the following wording shall be placed: “Then wipe dry with a soft clean cloth or toilet paper, making absolutely certain the cloth or paper is free of grit, sand, or dirt. Gasoline or hot water should - not be used for cleaning. IlThe flexible earpiece of the temple is easily adjus
32、ted for praper fit by gently forming with the fingers. It 3.6 Performance - The glasses shall satisfactorily meet the following performance requirements when tested as specified in Section 4. (a) Spectral transmittance (b) Optical quality (c) Lens examination 3.7 Marking - Each pair of glasses shali
33、 be permanently and distinctly marked with the letters ltUSN1l together with year of manufacture and name of manu- facturer, brand name, or trade mark i such mark is readily identifiable with said manufacturer. The markings shall be placed on the brow bar or temple of the glasses. 3.8 Workmanship -
34、Work shall be in accordance with high grade prac- tice covering this type of work, and the glasses shall completely meet the Accept- ance Quality Levels (AQLIs) as specified in Section 4. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection - Unless otherwise specified in the contract o
35、r purchase order, the supplier is responsible for the performance of all 9 -y- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-G-22332B 8q 777770b 0383323 T MIL-G-22 112B( AS) inspection requirements as specified herein. Except as otherwise spec
36、ified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspeci;ion requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the in- spections set forth in this specificat
37、ion where such inspections are deemed neces- sary to assure supplies and services conform to prescribed requirements. 4.2 Classification of inspection - The inspection and testing of the dark adaptation glasses shall be classified as follows: (a) First article inspection - First article inspection c
38、onsists of tests and examinations performed on samples which are representative of the production item after award of a contract to determine that the production item meets the requirements of this specification. (b) Quality conformance inspection - Quality conformance inspection consists of tests a
39、nd examinations performed on individual products or lots to determine conformance of the products or lots to the requirements of this specification. 4.3 First article inspection - The first article inspection of the dark , adaptation glasses shall consist of examinations and tests for all the requir
40、ements of this specification. 4r3.1 First article samples - Unless otherwise specified, as soon as practicable after the award of the contract or order, the manufacturer shall submit five pairs of glasses and two sheets of lens material 6 x 9 inches in size, as first article samples. The samples sha
41、ll be representative of the construction, work- manship and materials to be used during production. When a manufacturer is in continuous production of these dark adaptation glasses from contract to contract, submission of further first article samples on the new contract may be waived at the discret
42、ion of the procuring activity. Approval of the first article samples or the waiving of first article inspection does not preclude the requirement for per- forming the quality conformance inspection. The first article samples shall be furnished to the Government as directed by the Contracting Officer
43、 (see 6.2). The samples shall be identified with the following information: Samples submitted by (name) (date) for first article inspection in accordance with the requirements of MIL-G-22112 (AS). 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI
44、L-G-22LL2B 84 W 7779706 0383322 L W 4.3.1.1 Upon the completion of the first article inspection, ali the appli- cable inspoctioii reports and, when applicabkr, recommendations and commenh pertiiiont for uso in monitoring production will bo forwarded to the cognizant Government activity, One approved
45、 first article sample shall be returned to the mantacturer for use in monitoring production. The remaining samples will be consumed or destroyed in the first article inspection and shall not be considered as part of the quantity to be delivered under contract. 4.4 Quality conformance inspection - Th
46、e sampling and inspection levels shall conform to MIL-STD-105. The quality conformance inspection shail consist of the following: Visual examination Spectral transmif gross/net weight exceeds require- ments Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
47、-,-,-T i MIL-G-22LL28 4 m 337770b 0383327 O m ilII,-G-Y21 iLU(AS) 4.5.3 Spectral transmittance - Spectral transmittance shall be mcasurc at a temperature of 25 +2“ C (77 S.6 i?) in accordance with paragraph 1-3.8.1 of the American Standards Association, Method of Spectrophotometer Measurement for Co
48、lor (258.7.1-1951), using a suitable spectrophotometer (such as the Beckman or the Hardy-General Electric) which is maintained and calibrated in accordance with the recommendations of the National Bureau of Standards. Spectral trans- mittance over the range from 580 to 760 millimicrons shall be dete
49、rmined for each 10 millimicron interval, and the following table shall be completed and shall com- ply with the requirements of Section 3, WAVELENGTH %TRANSMmTANCE RODFACTORS RxT CONEFACTORS CxT m mu T R C 580 590 600 610 620 630 640 650 660 670 680 690 700 710 720 730 740. 750 760 .1856 .1201 .O754 ,0461 .O282 .O165 .O095
