SJ/T 10588.24-1994 Technical data of DB-495 electronic glass SJ/T10588.24-1994 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-495 electronic glass Technical dataof type DB-495 electronic glass Subject content and scope of application This standard specifies the chemical composition and physical and chemical performance indicators of DB-495 electronic glass. This standard applies to glass materials used in vacuum devices such as fluorescent lamp glass tubes. 2 Reference standards Standard methods for chemical analysis of electronic glass GB9000 GB9622 3 Technical requirements Test methods for physical and chemical properties of electronic glass 3.1 Chemical composition is shown in Table 1. Chemical composition Weight percentage 70.5±1.0 16.5±0.5 Note: 1) Fe, O, as impurity control, are not included in the percentage composition. 3.2 Physical and chemical performance indicators are shown in Table 2. 1994-08-08 Ministry of Electronics Industry of the People's Republic of China approved SJ/T10588.24-94 Replaced SJ681-83 Test method GB9000.11 GB9000.10 GB9000.14 Implemented on 1994-12-01 Indicator name SJ/T10588.24-94||tt ||Average linear thermal expansion coefficient in the range of 0~300℃αDensity Softening point Annealing point Strain point Dielectric loss tangent value tgox10 at a frequency of 6MHz and a temperature of 20C Temperature at which the volume resistivity is 100Mn·cm (Tk-100)Thermal stability Water resistance and chemical stability level Additional instructions:bzxz.net This standard is under the jurisdiction of the Standardization Institute of the Ministry of Electronics Industry. 1/℃ This standard was drafted by the 741 Factory and the Standardization Institute of the Ministry of Electronics Industry. The main drafters of this standard are Ling Bin, Liu Chengjun and Sun Biaochun. Refers to (92.0±2.0)X10- 2.500±0.015 700±10 520±10 485±10 ≥120 This standard was first issued on May 1983 and revised for the second time in August 1994. 2 Test method GB9622.11 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.