Technical data of Type DB-495 electronic glass

SJ/T 10588.24-1994 Technical data of DB-495 electronic glass SJ/T10588.24-1994 Standard download decompression password: www.bzxz.net

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:
This standard is under the jurisdiction of the Standardization Institute of the Ministry of Electronics Industry. 1/℃wwW.bzxz.Net
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
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