This part of GB/T 17739 specifies the quality requirements and inspection methods for microforms of technical drawings and technical documents made by photographing them on 35mm silver-gelatin black-and-white microfilm. This part applies to the first-generation, second-generation and silver-gelatin microforms of various technical drawings and technical documents for issuance. GB/T 17739.2-2006 Microfilming of technical drawings and technical documents Part 2: Quality criteria and inspection of 35mm silver-gelatin microforms GB/T17739.2-2006 Standard download decompression password: www.bzxz.net
This part of GB/T 17739 specifies the quality requirements and inspection methods for microforms of technical drawings and technical documents made by photographing them on 35mm silver-gelatin black-and-white microfilm. This part applies to the first-generation, second-generation and silver-gelatin microforms of various technical drawings and technical documents for issuance.

[C% 32.080
National Standard of the People's Republic of China
GB/T 17739.2—2006
Generation G3/T8958—1999.GB/T89591998.GB/T89901988Microfilming of lerhnical drawing and technical documents-Part 2: Quality criteria and control of 35 mml silver gelatin microfilms(1503272-2.1994,Microfiltring of technical drawings and other drawing documents-Part 2.Quality criteria and control of 35 mnt silver gelatinmierofilms.MOD)
2006-08-23 issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of China
2007-02-01 implementation
(11/7739 Microfilming of technical drawings and technical documents is divided into 3 parts: beside! Part 1: Quality control of 35mm microfilms: etc. 3 parts, 35mm reduction bite film window card: Part 1: Special large-scale small pattern photography: Part 5: Inspection procedure for the secret code of microfilm system; Part 6: Quality control rules for mm box microfilm system GB/T 17730.2—2006
This part modifies IS3272-2:1564 technical sample and other compensation document compilation micro-image Part 2: 35m embedded micro-box quality inspection rules and regulations, this part and 15) 1272-2:1S91 main improvements are: the part does not use the new high cost cup standard 4.7 for the first generation, second generation and release box products of negative image and low density clothing are 0.7, U.7 and U.8 respectively, while TS0272 requires .40.90.
4.8 as far as possible, the film base or fog degree does not exceed 0.10. The view of 1S3272-2 is C.=2. This part also makes the following logical corrections: "International Standard This part is for the purpose of this part - International Standard Foreword || tt || Use "" as a decimal point instead of "", "This part will be followed by GH3388·1988 Microfilming Technology Qualifications for Inspection of Medical Paper Microphotography Quality Standards 3, GB/8999-19984 Microfilming Technology Technical Drawings and Technical Documents Quality Standards and Inspection GB/9330-1998: Microfilming Technology Quality Standards and Inspection The reflectivity test board of the "photographic quality test standard plate" of the inspection technical drawing is integrated and revised as the previous part. (/896S198 is the 5.1 and 6 of this part: 3G/T981S9A is the ± of this part, and is the 1.2, 3.1 chapters and appendices; H/993-198 is the 6.2.4 and the appendix of this part [3 cloud part Appendix VIII, Appendix B, Appendix C, Appendix D are all the current pool appendix II insect National Document Image Technical Standardization Committee ($A/8 6) Put forward the unified management. Part of the origin unit: National Association of Imaging Technology Standardization Technical Committee Sixth Branch, National Institute of Science and Technology. Part of the originator: Cai Manying, Wei Lingzhi Zhang Rong. Part of the replacement of GB/T8988-1088. CB/808-1598 GB/T8UUJ-1388 GB/T17739,2-2C06
Each machine shall exchange technical samples and technical documents, and There is no ambiguity when the microfilm is printed. Microfilming technology is more convenient for the inspection, transmission, processing and storage of technical samples and technical documents. Microfilms should meet the precise requirements of size and quality so that they can be processed. If the original is sent strictly according to the size and shrinkage ratio of the microfilm, the quality requirements of the microfilm can be easily recognized. 1 Scope
Microfilming of technical drawings and technical documents GB/T17739.2—2006
Part 2 35 Quality criteria and inspection of 35mm silver gelatin microforms
This part of GBT17739 specifies the quality requirements and inspection methods for 35mm sawn gelatin black self-produced microfilms and technical documents.
This part is applicable to the first generation, second generation and issuance of silver gelatin microforms of various technical drawings and technical documents. 2 Normative references
The provisions of the following documents become the provisions of this part through reference to this part of GB/T17739: For any dated referenced document, all subsequent documents (excluding the contents of the period block) or versions thereof are not applicable to the technical part. However, the absence of this part shall not affect the parties to the agreement. The latest edition of these documents may be used. For any outdated references, the latest edition applies to the technical part.
/T61:S.1—2003 Microfilming Technology 1
What is the collection: Part 1: General terms (150.1S-1: 333M) GR/61:9.3-2003 Microfilming Technology Part 3: Film handling (1S01S3: 337M0T)) GB/61=S.4-2(03 Microfilming Technology Vocabulary Part 4: Material location: 1: 195-4: 1498, M(0T>) GB/T6135.5—2000 Microfilming Technology Part 5: Image quality, reproducibility and detectionFor a No. 1 test chart or a No. 2 test chart, the visual quality of the test image shall meet the requirements of Table 2. See (15/T18405-2001). Method for testing No. 2 test images K/T676:-1 Appendix C (Normative Appendix) Density control When the slow production and washing conditions can make the 50% reflectivity gray card image density control within the range of 1.1.2, the density of the 6-series reflective gray card image represents the minimum density of the color false area on the film, and the glue value shall not exceed 0.20. When the microfilm is copied by contact, the copy shall be the same as the 50% reflectivity gray card area density to represent the current pixel density of the image. The image quality inspection or line drawing of the image in the area of ​​​​the picture (normative appendix)
Other situations where test plates should be photographed
GB/T17739.2-2096 bzxz.net
In addition to photographing test plates during normal shooting, test plates should also be photographed in the following situations: to control the quality of microfilm images; after the film processor or the integrated camera and film processor is undergoing maintenance and follow-up! 5
6 When the chemical products for film processing change; when the cleaning service conditions change:
After the film emulsion is changed!
After the lighting equipment of the film machine changes or fails:) After any adverse operation occurs,
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