SJ/T 10588.7-1994 Technical data of DB-423 electronic glass SJ/T10588.7-1994 Standard download decompression password: www.bzxz.net
Some standard content:
Electronic Industry Standard of the People's Republic of China Technical data of type DB-423 electronic glass Technical data of type DB-423 electronic glassSubject content and scope of applicationbZxz.net This standard specifies the chemical composition and physical and chemical performance indicators of DB-423 electronic glass. This standard applies to glass materials used for color picture tube screens. Reference standards GB9000 Standard method for chemical analysis of electronic glass Method for testing chromaticity coordinates of screen glass for color picture tubesAnalysis of cerium oxide in color picture tube glassGB/T14012 General specification for glass shell of black and white picture tubes 3 Technical requirements Chemical composition is shown in Table 1. Chemical composition Weight percentage 60.55±1.00 0.24±0.03 8.10±0.15 6.95±0.15 2.50±0.10 8.40±0.15 7.96±0.15 1.80±0.10 0.31±0.10 2.05±0.10 Approved by the Ministry of Electronics Industry of the People's Republic of China on August 8, 1994 SJ/T105 88.7-—94 Test method GB9000.10 GB9000.15 GB9000.11 GB9000.12 1994-12-01 implementation SJ/T10588.7-94 Continued Table 1 Weight percentage 0.27±0.03 0.04±0.01 0.40±0.05 Note: Fe:O, as impurity control, is not included in the percentage composition. 2 Physical and chemical performance indicators are shown in Table 2. Indicator name Average linear thermal expansion coefficient a in the range of 0~300℃Density Softening point Annealing point Strain point X-ray absorption coefficient (0.06nm, 20.6KeV)Chromaticity coordinates (center value) Additional instructions: This standard is under the jurisdiction of the Standardization Institute of the Ministry of Electronics Industry. Unit Test method GB9000.14 (98.7+1.0)×10-7 2.783±0.05 698±3 516±5 476±5 This standard was drafted by Shenzhen Zhongkang Glass Co., Ltd. and the Standardization Institute of the Ministry of Electronics Industry. The main drafters of this standard are Wang Yan, Lin Chunguang and Liu Chengjun. 2 Test method GB/T14012 Article 4.5.4 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.