SJ/T 10588.12-1994 Technical data of DB-438 electronic glass SJ/T10588.12-1994 Standard download decompression password: www.bzxz.net
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Electronic Industry Standard of the People's Republic of China Technical data of type DB-438 electronic glass Technical data of type DB-438 electronic glassSubject content and scope of application This standard specifies the chemical composition and physical and chemical performance indicators of DB-438 electronic glass. This standard applies to glass materials used in vacuum devices such as black-and-white cathode ray tubes and indicator tubes. 2 Referenced standards GB9000 GB9622 Technical requirements Standard method for chemical analysis of electronic glass Method for testing chromaticity coordinates of screen glass for color cathode ray tubesMethod for testing transmittance (t546) of screen glass for color cathode ray tubesTest method for physical and chemical properties of electronic glass Chemical composition is shown in Table 1. 3.2 Physical and chemical performance indicators are shown in Table 2. Weight percentage 66.81±1.00 3.00±0.15 12.10±0.15 3.35±0.15 5.80±0.20 7.75±0.10 0.60±0.03 Approved by the Ministry of Electronics Industry of the People's Republic of China on August 8, 1994 SJ/T10588.12--94 Test method GB9000 .10 GB9000.12 1994-12-01 implementation Indicator name SJ/T10588.12-94 Average linear thermal expansion coefficient α in the range of 0~300℃Density Softening point Annealing point Strain point Light transmittance (ts) (%) Chromaticity coordinates (center value) Additional notes: This standard is under the jurisdiction of the Standardization Institute of the Ministry of Electronics Industry. 1/℃ (92.5±0.5)×10-1 2.68±0.01 658±5www.bzxz.net 460±5 420±5 42.0±1.5 Test method This standard was drafted by Shijiazhuang Baoshi Electronic Glass Co., Ltd. and the Standardization Institute of the Ministry of Electronics Industry. The main drafters of this standard are Xu Yujuan, Zhao Conghui and Liu Chenggou. 2 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.