1、- -_ - /-F36- i3 L-F-320B 67 9777774 0012454 5 FILM, LF-320b . May 4, 1965 SUPERSEDING Fed. Spec. LF-320a August 3, 1961 FEDERAL SPECIFICATIOPU THERMAL DEVELOPING This rpedjication was approved by the Cornrniaaher, Pederal Bupply Ber- ice, General Bemicer Administralion, for the me of aU Federal age
2、nciea 1. SCOPE AND CLASSIFICATION 1.1 Scope. This specification covers the requirements for thermal developing film supplied in rolls, in a range of widths from 16mm to 9% inches. The duplicating film specified herein is of a type in which the image is formed by light sensitive elements in a plastic
3、 vehicle coated on a flexible transparent, dimensionally stable base. 1.2 Classification. 1.2.1 Types, subtgpes, classes, ancl kids. The thermal developing film covered by this specification shall be of the following type, subtypes, classes, and kinds. Kinds 1A-2 mil 1B-3 mil IC4 mil 1D-5 mil 2. APP
4、LICABLE SPECIFICATIONS, STANDARDS, AND OTHER PUBLICA- ., TIONS 2.1 Specifications and standards. T h e following specifications and standards, of the issues in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein : I-Duplicat
5、ing Subtzypes A-Nonreversible B-Reversible Ciussas l-Low Gamma GMedium Gamma Federal Specifications : L-F33-Film, Photographic, Black and White, General Specification for. PPP-B-636-Box, Fiberboard. PPP-T-gO-Tape, Pressure Sensitive Adhesive, Waterproof for Packaging and Sealing. Federal Standards :
6、 Fed. Std. No. lO%Preservation, Pack- aging, and Packing Levels. .- 1 - 0 FSC 6750 ,-A THIS DOCUMENT CONTAINS PAGES? Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L-F-32OB 67 Wi
7、 7797774 0032455 7 Fed. SM. No 123-Marking for Do- mestic Shipment (Civilian Agencies) . (Activities outside the Federal Government may obtain copies of Federal Specifications, Standards, and Handbooks as outlined under General Info*- tion in the Index of Federal Specifications and Standards and at
8、the prices indicated in the Index. The Index, which includes cumulative monthly sup- plements as issued, is for sale on .a subscription basis by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. (Single copies of this specification and other prod- uct specific
9、ations required by activities outside the Federal Government for bidding purposes are avail- able without charge at the General Services Admin- istration Regional Ofices in Boston, New York, Washington, D.C., Atlanta, Chicago, Kansas City, MO., Dallas, Denver, San Francisco, Los Angeles, and Seattle
10、, Wash. (Federal Government activities may obtain copies of Federal Specifications, Standards, and Handbooks and the Index of Federal Specifications and Stand- ards from established distribution points in their agencies.) Miitayg Standards : MIL-STD-lO5-Sampling Procedures and Tables for Inspection
11、by Attri- butes. . MIL-STD-129-Marking for Shipment and Storage. MS-26565-Spool-Photographic Film, Aerial. (Copies 6f Military Specifications and Standards required by contractors in connection with specific. procurement functions should be obtained from the procuring activity or a8 directed by the
12、aontracting officer.) 2.2 Other publications. T h e following documents form a part of this specification t6 the extent specified herein. Unless other- wise indicated, the issues in effect on date of invitation for bids shall apply. American Standards Association Inc., (ASA), Standards : PH1.25-1956
13、-S a f e t y Photographic PH2.19-1959-Diff use Transmission Film, Specification for. Density. PH5.3-1958-16mm. and 35mm. Micro- films on Reels or in Strips, Specifica- tions for. PH1.35-1961-35mm. 100-Foot Spools for Recording Instruments, Micro- film and Still Picture Cameras, Di- mensions for. PH1
14、.13-1953-Dimensions for Molded Type Cores for Photographic Film and Paper Rolls. PH1.20-1963-70mm. Unperforated and Perforated Film for Cameras Other Than Motion Picture Cameras, Di- mensions for. (Copies may be obtained from the American Standards Association, 10 East 40th Street, New York, N.Y. 10
15、016.) American Sockt3 for Testing and Ma- D-882-56T-Methods of Tests for Properties of Thin Plastic Sheets and Films. terials (ASTM) Standards : D-1004-49T-Methods of Test for Initial Tear Strength. (Copies may be obtained from the American So- ciety for Testing and Materials, 1916 Race Street, Phil
16、adelphia, Pa. 19103.) Technical Assocktion of Pulp and Paper IndustTy (TAPPI) Standard: T411-M-Thickness and Density of Paper. (Copies map be obtained from the Technical As- sociation of the Pulp and Paper Industry, 360 Lex- ington Avenue, New York 17, New York.) Copyright Communications - Electroni
17、cs Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L-F-32OB 67 a 3377774 00L245b 7 m I Tensile strength (minimum) 3. REQUIREMENTS 3.1 Materiais. The thermal developing film procured in accordance with this speci- ficat
18、ion shall meet all the requirements herein specified, The base film shall be composed of virgin materials. The working surface shall contain no broken areas, sur- face defects, or other defects of manu- facture. 3.1.2 Film base, The film base shall be a polyester film which is an optically homo- gen
19、ous, clear, transparent, dimensionally stable medium and shall be noncolor selec- tive and supplied perforated or nonperfor- ated as specified (see 6.1.1). 3.1.2.1 Perforations. When specified, per- forated film shall have type II perforations in accordance with ASA Standard PH1.20- 1963. 3.1.3 Safe
20、ty buse. The base material shall meet the safety limits as defined in ASA Standard PH1.25-1956, “Safety Photo- graphic Film”. 3.1.3.1 Spools ctnd cores. Unless otherwise specified all types, subtypes, classes and kinds of film, specified herein, shall be sup- plied on standard spools or cores. For 1
21、6mm. and 35mm. film widths the spools shall conform to ASA Standard PH1.35- 1961. For 70mm. through 9% inch film widths the spools shall conform to MS- 26666. Cores, when specified, shall conform to ASA Standard PH1.13-1953. 3.1.4 Tensile strengt h. The tensile strength of the base film shall be not
22、 less than that shown in table I when tested as specified in 4.3.2. Tear (minimum) per inch 6f thickness TABLE I. . 10,000 p.s.i. I 1,000 pounds 3.1.4.1 Initial teay strength. Initial tear strength of the base film shall be not less than that shown in table I when tested as specified in 4.3.3. 3.1.5
23、 Widths. Roll film shall be slit in ac- cordance with table II. Dimensions shown apply to the material immediately after slitting. TABLE II-Slitting widths and toleiances Nominal film width Film Width tolerance (in inches) 16- 86mm 70mm . 3% inches 6 inches . 7 inches 9% inches .- -. 0.628 f 0.001 1
24、.374 I 0.002 2.764 f 0.002 3.25 f 0,006 4.960 f 0.010 6.991 f 0.010 9.460 f 0.010 3.1.6 Lengths. The film lengths shdl be as designated in table III. The total length furnished shall include both the film length and the “total integral self-leader and trailer” quantities. 3.1.7 Thickness. The thickn
25、ess of the film before processing, with coating in- cluded, shall be as follows : $4 Kind Rase thickness plus coating (in inches) 1A . 1B 1c . _ ; ID . i 0.00240,0006 0.0034f 0.0007 0.0044f 0.0008 O.OOEi4f 0.0010 3.1.8 Coating defect.s. The film shall be free from scratches, pinholes, blisters, tear
26、s, fingerprints or other physical defects; and from streaks, spots or areas of marked higher or lower sensitivity than surround- ing portions when tested as specified in 4.3.5. : :_ . - .I 3 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reprod
27、uction or networking permitted without license from IHS-,-,-b L-F-32OB 67 3977974 0012457 O L-F-32013 TABLE 111-Film lengths Coefficient of coefticient of thermal hygroscopic expansion expansion Film width Permanent change Tempera- ture Humidity 16mm 16mm 16mm 16mm 16mm 16mm 36mm 36mm 36mm 36mm 36mm
28、 36mm 7Omm 70mm 70mm 70mm 70mm 70mm 0.000016 inch (per inch degree F.) 3% inch 3% inch 3% inch 3% inch 3% inch 3% inch 0.000012 inch Cycle Cycle (per inch 0.10% 0.10% percent RH) 5 inch 5 inch 6 inch 6 inch 6 inch 6 inch 7 inch 7 inch 7 inch 7 inch . 7 inch 7 inch 9% inch 9% inch 9% inch 9% inch 9%
29、inch 9% inch I Film length - (feet)* 100 300 400 600 1000 100 200 300 8 400 600 1000 100 200 300 400 600 1000 200 . 100 200 300 400 600 1000 100 200 300 400 600 1000 100 200 300 400 600 1000 100 200 300 400 600 1000 Total integra self-leader and trailer (feet)* - 6 6 10 16 16 20 6 6 10 16 15 20 10 1
30、6 20 26 26 30 10 16 20 25 25 30 10 16 20 20 20 30 10 16 20 20 20 30 10 16 20 20 20 30 * Dimensi0r.s shown are minimum requirements. 4 Y. 3.1.9 Thermal coefficient of expansion. The thermal coefficient .of expansion shall be as shown in table IV, The coefficient of thermaI expansion shall not exceed
31、0.000015 inch per inch for each “F. change in tem- perature in the range of 70“ to 140F. when tested as specified in 4.3.6. TABLE IV-Dimensional stability , I I I I 3.1.10 Hygroscopic coefficient of ex- panszon. The hygroscopic coefficient of ex- pansion shall be as shown in table ITr. The coefficie
32、nt of hygroscopic expansion shall not exceed 0.000012 inch per inch for each percent change in the relative humidity in the range of 20 percent to 90 percent at 70F. when tested as specified in 4.3.7. 3.1.11 Permanent change in linear di- mensions. The permanent change in linear dimensions shall not
33、 exceed 0.10 percent when tested as specified in 4.3.8 and 4.3.9, 3.2 Sensitometric characteristics. 3.2.1 Subtype A, classes i arui E. Sub- type A, classes 1 and 2 film shall meet the sensitometric characteristics shown in table V. Subtype A duplicating film shall pro- duce negative images from pos
34、itive images, or positive images from negative images. 3.2.2 Subtgpe B, class 2. Subtype B, class 2 film shall meet the sensitometric charac- teristics shown in table V. Subtype B duplicating film shall produce a negative image from a negative image or a positive Copyright Communications - Electroni
35、cs Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L-F-320B 67 7777779 0012458 2 I /- -. Type image from a positive image through re- versal procedure and process. 3.2.3 Density. Except for the actinic background densi
36、ty, all other densities speci- fied herein shall be visual diffuse trans- mission densities in accordance with PH2. 19-1959. The maximum density shall be not less than that shown in table V when tested as specified in 4.3.10. The minimum density shall not exceed that shown in table V when film is ex
37、posed and processed in accordance with the manufacturers instruc- tions. Subtype 3.2.4 .Actinic ba.ckg?.ouncL density. Actinic background density shall not exceed 0.15 density units when tested in accordance with 4.3.11. Gamma . 0.30f0.08 0.471.0.10 0.40 f 0.16 3.2.5 Ga,nma. Gamma shall be as speci-
38、 fied in table V Gamma shall be as meas- ured and defined in GF-330. Speed-rating 1.10 I0.16 0.80 f 0.16 0.70 f 0.20 3.2.6 .Resokition. Resolution of all film specified herein shall be not less than the lines per millimeter shown in table V, when tested as specified in 4.3.13. -. 3.2.7 Speed rating.
39、 Speed rating shall meet the values shown in table V when tested as specified in 43.10.1, 4.3.14, 4.3.15, and 4.3.16. 3.3 Expiration date. Unless otherwise specified herein, the expiration date shall be not less than five years from date of ship- ment when the film is stored in the original LF320b u
40、nopened packages in a room maintained at a temperature not higher than 73F. and 60 percent relative humidity. The expira- tion date shall be shown on the package. 3.3.1 Rodktion damage. When subjected to ionizing radiation be1o.w 100,000 roent- gens neither the chemical nor physical properties of th
41、e thermal developing film shall be so affected as to alter the sensito- metric characteristics of the emulsion or to hinder the use of the film in equipment with which it is normally employed. 3.4 Uniformity of characteristics. Uni- formity of physical and sensitometric char- acteristics among speci
42、mens of the same manufacture and coating number, and among different manufacturing lots of a given type, class, and speed shall be main- tained within closest practical limits. 3.5 Workmanship. Workmanship shall be in accordance with high grade- commer- cial practice covering the manufacture of heat
43、 developing film sensitized by a coating of light sensitive elements in a . plastic vehicle. 4. SAMPLING, INSPECTION, AND TEST PROCEDURES 4.1 Responsibility for inspection; Unless otherwise specified in the contract or pur- chase order, the supplier is responsible for the performance of all inspecti
44、on require- ments as specified herein. Except as other- TABLE V-Sensitometyic characteristics I D Max. 1 D Min. I I Class (minimum) !(maximum) l I .- 1 I 0.45 I 0.16 I Resolution lines /MM 144 161 144 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for Resal
45、eNo reproduction or networking permitted without license from IHS-,-,-L-F-32OB 67 7777774 0012457 4 W -I L-F-320b wise. specified, the supplier may utilize his own facilities or any commercial laboratory acceptable to the Government. The Govern- ment reserves the right to perform any of the inspecti
46、ons set forth in the specification where such inspections are deemed necessary to assure that supplies and services conform to prescribed requirements. 4.2 Sampling for inspection and accept- ance. Sampling for inspection and accept- ance shall be performed in accordance with provisions set forth in
47、 MIGSTD-105, ex- cept where otherwise indicated hereinafter. For purposes of sampling, an inspection lot for examination and tests shall consist of all materials of the same type and class submitted for delivery at one time. 4.2.1 Inspection of materials and com- ponents. In accordance with 4.1, the
48、 supplier is responsible for insuring that materials and components used were manu- factured, tested and inspected in accordance with the requirements of referenced sub- sidiary specifications and standards to the extent specified, or, if none, in accordance with this specification. In the event of
49、con- flict, this specification shall govern. 4.2.2 Impection of the end item. 4.2.2.1 Examination of the end item. Ex- amination of the end item shall be made in accordance with the classification of defects, set forth below and inspection levels and acceptable quality levels (AQLs) specified in 4.2.2.1.5. Not more than 3 rolls of roll film shall be drawn from any one shipping container for each lot of film offered for acceptance for visual and dimensional char
