This standard specifies the dimensions of 16mm and 35mm microfilm light-proof trays and reader trays. This standard applies to 16mm and 35mm microfilm light-proof trays and reader trays. This standard does not apply to light-proof trays and trays that are part of single-axis cassettes, double-axis cassettes or cassettes used in microfilm recording or microfilm reading equipment. GB/T 19523-2004 Microfilm Technology 16mm and 35mm Microfilm Light-proof Disks and Disks Technical Specification GB/T19523-2004 Standard download decompression password: www.bzxz.net
This standard specifies the dimensions of 16mm and 35mm microfilm light-proof trays and reader trays. This standard applies to 16mm and 35mm microfilm light-proof trays and reader trays. This standard does not apply to light-proof discs and reels as part of single-axis cassettes, double-axis cassettes or cassettes used in microfilm recording or microfilm reading equipment.
This standard is modified and adopted ISO1116:1999 "Microfilm Technology - 16mm and 35mm Microfilm Light-Proof Discs and Reels - Technical Specifications" (English version)
The main differences between this standard and ISO1116:1999 are as follows:
- The table of contents is deleted;
The statement on the applicability of the standard is added;
The statement on the scope of application of the standard is added;
- The two international standards in the normative references in Chapter 2 are changed to the corresponding national standards.
This standard is proposed and coordinated by the National Technical Committee for Standardization of Document Imaging Technology (SAC/TC86).
This standard was drafted by the Fourth Subcommittee of the National Technical Committee for Standardization of Document Imaging Technology.
The main drafters of this standard are Guo Yudong and Li Ming.
The clauses in the following documents become the clauses of this standard through reference in this standard. For all referenced documents with dates, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties who reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all referenced documents without dates, the latest versions are applicable to this standard.
GB/T6159.4-2003 Microfilming Vocabulary Part 4: Materials and packaging (ISO6196-4:1998, MOD)
GB/T16573-1996 Microfilming Procedure for photographing documents on 16 mm and 35 mm silver-gelatin microfilm (egvISO6199:1991)
ISO1019:1982 Cinematography - Light-proof discs for brightroom film for 16 mm motion picture cameras - Dimensions
ISO3042:1992 Cinematography - Labelling of containers for cinematographic raw film and magnetic film - Minimum information specifications
ISO3047:1982 Cinematography - Light-proof discs for brightroom film for 35 mm motion picture cameras (capacity 30 m 100 ft) - Dimensions
ISO6148:1993 Photography - Film dimensions - Microfilming ISO7761-1
: Microfilming - Single-spindle cassettes for 16 mm processed microfilm - Dimensions and handling limitations -
Part 1: Open cassettes
ISO10214:1991 Photography - Processed photographic material - Archival packaging for storage

ICS 37.080
National Standard of the People's Republic of China
GB/T19523—2004
Micrographics
16 mm and 35 mm microfilmspools and reels—Specifications(IS0) 1116:1999.M0D)www.bzxz.net
Published on 2004-05-31
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Administration of Standardization of the People's Republic of China
Implementation on 2004-12-01
GB/T19523—2004
This standard is modified and adopted by IS01116:1999 Micrographics—16 mm and 35 mm microfilmspools and reels—Specifications(IS0) 1116:1999.M0D) The main differences between this standard and 1S01116:1999 are as follows: the word "目淡" is deleted; the statement about the applicability of the standard is added; the statement about the scope of application of the standard is added; the two international standards in Chapter 2 "Normative References" are changed to the corresponding national standards. This standard is proposed and managed by the National Technical Committee for Document Imaging Technology Standardization (SAC/TC86). This standard was drafted by the Fourth Subcommittee of the National Technical Committee for Document Imaging Technology Standardization. The main contributors of this standard are Guo Yudong and Ji Ming. 1 Scope
Microfilm technology
16mm and 35mm microfilm
Light-proof discs and discs technical specifications
This standard specifies the dimensions of light-proof discs and reader discs for 16mm and 35mm microfilm supply films. This standard applies to light-proof discs and reader discs for 16mm and 35mm microfilm supply films. GB/T19523—2004
This standard does not apply to light-proof discs and discs that are part of single-axis cassettes, double-axis cassettes or cassettes used in microfilm records or microfilm reading equipment.
2 Normative references
The provisions of the following documents become the provisions of this standard through reference in this standard. For dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this standard. GB/T6159.4-2003 Microfilm Vocabulary Part 4: Materials and packaging (ISO6196-4:1998, MO) GB/T16573-1996 Microfilming Procedure for photographing documents on 16mm and 35mm silver-gelatin microfilm (eqvISO6199:1991)
IS01019:1982 Cinematography Dimensions of light-proof film discs for 16mm cinematography ISO 3042:1992 Cinematography - Labels for film and magnetic discs - Minimum information specification Cinematography Light-proof film discs for 35mm cinematography (capacity 30m1 S0 3047: 1982
100FT) - dimensions
ISO 6148:1993
Photography — Film dimensions — Microfilming TSO7761-1: Microfilming — Single-spool cassettes for 16n processed microfilm — Dimensions and handling limitations — Part 1: Split cassettes
ISO10214:1991 Photography — Processed photographic material — Archival packaging for storage 3 Terms and definitions
The terms and definitions defined in GB/T6159.42003 apply to this standard. 4 Technical specifications
4.1 Light-proof film trays for film supply
4.1.1 Dimensions
The dimensions of light-proof film trays for film supply shall comply with the requirements of Figures 1 and 2 and Tables 1, 2 and 3. 4.1.2 Capacity
The standard push-feed light-proof film reels for unexposed films refer to the "30 m light-proof film reels" for 16 mm and 35 mm films, on which films with a nominal thickness of 0.13 mm and a length of 30 m can be wound. The lengths of films of other thicknesses that can be wound on these light-proof film reels comply with the provisions of ISO6148:1993.
4.1. 3 Fixing on the core
Should enable straight-cut films to be fixed on the core without any special treatment of the films. GB/T19523--2004
4.1.4 Holes, pure impact and slits
The two flange core holes are square. One flange has a keyway at the corner of the upper hole, while the keyway on the other flange is optional. If there is a keyway on each of the two flanges, the push line of the keyway should be parallel to the core. The structural material can be gold film or plastic.
For metal anti-glare discs, between 16 mm and 35 titm Two offset check holes may be provided in the two flanges of the microfilm light-proof disc. These two check holes ensure correct film positioning when equipment with two drive pins is used (see Figure 1). A
View of flange with square spindle hole
S
Figure 1 Metal light-proof disc
For plastic light-proof discs, these two offset check holes are mandatory. Due to the molding technique used, the offset holes will rotate from the position shown in Figure 1 to the position shown in Figure 2. Regardless of appearance, the two check holes shall have the same function. It should be noted that if the equipment manufacturer uses a check pin, a round spindle is required for reciprocating microfilm formats so that both metal light-proof discs and plastic light-proof discs can be used. The shape and size of the spindle hole, keyway, optional holes and slots shall comply with Figure 1 or Figure 2 and Tables 1, 2 and 3. 4.1.5 Film winding
Figure 2 Plastic light-proof film reel
GB/T19523—2004
When winding raw film, the emulsion layer should face outward, unless the order contract clearly requires the emulsion layer to face outward. In this case, the packaging should indicate the characters "emulsion layer facing outward". In the case of a film with a perforation on one side, the type of winding shall be indicated by the letters "A" or "B" in accordance with ISO3042:1992 (see also IS06148:1993). 4.1.6 Table Surface finish
Lightproof reels shall not have burrs or mouldings which could affect transport or film production. 4.2 Reader reels
It is recommended that microfilm intended for use with readers be stored on reels referred to as "storage reels". Reels shall be at least as resistant to damaging factors as the film itself. Reels shall not contain or release any chemical substances which could damage microfilm (see 15010214:1991). 4.2.1 Dimensions
The dimensions of the reels shall conform to Figures 3 and 4 and Table 4. 4.2.2 Capacity
Reader reels shall normally be suitable for winding film of nominal thickness 0.13 mm and length 30 mm. Any non-standardized reel shall not have an outer diameter greater than the outer diameter specified for a 30 mm reel, and any core diameter shall not be less than the core diameter specified for a 30 mm reel.
4.2.3 Fixing on the core
Suitable means should be provided to enable the straight-cut film to be fixed on the core without any special treatment of the film. Table 1 Common dimensions of 16 mm and 35 mm light-proof film discs
7. 60 1 30
3. 10~ tn
8.0510.05
Unit is millimeter
GB/T 19523--2004
See Figures 1 and 2.
8See Figures 1 and 2.
Table 2 (continued)
Table 2 Common dimensions for 16 mm light shield discs
32.0010.50
≥0.75[width×length]
8.15±0,15
16. 23 10. 18
2≥16.00
92.00.1.0
bMany existing light shield discs do not meet this strict tolerance range. It is recommended that the specified dimensions be used in future designs. 4.2.4 Holes and keyways
4.2. 4.1 Reversible disc
Unit: mm
Unit: mm
It is recommended to use a "reversible disc". This disc has a square mandrel hole with a key on each side of the disc (see Figure 3). The square mandrel hole with a keyway on one side of the disc should correspond to the mandrel hole and keyway on the flange on the opposite side. A reference mark, such as a molded mark or a written mark, should be provided on one side of the flange to facilitate identification of the flange and to assist in correct film loading.
4.2.4.2 Non-optional discs
A "non-reversible disc" can also be used. The mandrel hole on one side of the disc is square and the hole on the other side is round (see Figure 4), and the mandrel used has one section that is square and the other section that is round. Table 3 Common dimensions of 35mm light-proof discs
See Figures 1 and 2.
35.10+3.40
335,05
37.90-2.80
92.00_1.00
! Many existing light-proof discs do not meet this strict public range. Future designs are recommended to use the specified unit of measurement in meters.
Reference mark:
-spindle hole;
Keyway:
Reference surface:
5-Flange:
One disc core.
1-—Axis hole:
2Square mandrel;
3-…Push-free surface
Figure 3 Reversible disc
Figure 4 Irreversible disc
GB/T19523—2004
GB/T19523—2004
Cand D
See Figure 3 and Figure 4
4.2.5 Winding
Dimensions of reader disc
16 m disc
8. 1- 0. 5
3. 3 - 0. 2
8. 10±0:5
32. 01 1.
17, c+#
19. 0 +1. 0
Unit is mm
35 mmtrtReel
8, 1-+ 0. 5
3, 3 1 0. 2
32. 0 1 1. 0
38. 0*1:5
38. 0-+1. 0
92.0±#:8
G2 -- G
Microfilm should be wound as shown in Figure 5. In this way, when reading by sight, the image \F\ will appear in the correct position (upright reading) (see also GB/T15573---1996)
4.2.6 Surface finish
Light-proof reels shall not have any burrs or moldings that may affect film transport or prevent film scratches. 4.2.7 Optional Features
Optional film loading slots may be provided in one or both flanges of the spindle. If provided, they should conform to the dimension L in Table 1
The type of plastic used in the manufacture of the reel may be indicated and a recycling symbol may be used on one side of the reel, 1-
Leader!
Light.
Figure 5 Schematic diagram of film winding on a reel
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