Technical data of Type DB-401 electronic glass

SJ/T 10588.1-1994 Technical data of DB-401 electronic glass SJ/T10588.1-1994 Standard download decompression password: www.bzxz.net

Electronic Industry Standard of the People's Republic of China
Technical data of typeDB-401 electronic glassSubject content and scope of application
This standard specifies the chemical composition and physical and chemical performance indicators of DB-401 electronic glass. This standard is applicable to glass materials used in electronic devices such as low-power electronic tubes. Reference standards
GB9000 Standard method for chemical analysis of electronic glass GB9622 Test method for physical and chemical properties of electronic glass 3 Technical requirements
3.1 Chemical composition is shown in Table 1.
Weight percentage
69.5±1.0
12.5±0.5
Note: 1) Al, O., Fe:O, as impurity control, are not included in the percentage composition. 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/T10588.1-94
Replaced SJ676-83
Test method
GB9000.11
GB9000.10
GB9000.12
GB9000.14
Implemented on 1994-12-01
Indicator name
SJ/T1058 8.1-94
Average linear thermal expansion coefficient in the range of 0~300αDensity
Softening point
Annealing point
Strain point
Dielectric loss tangent value tg8×10% at frequency 6MHz and temperature 20℃Temperature when volume resistivity is 100Mn·cm (Tk-u)Thermal stability
Water resistanceChemical 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 774th Factory and the Standardization Institute of the Ministry of Electronics Industry. The main drafters of this standard are: Lin Jingbo, Liu Chengjun, Wei Guangyun, and Tang Yingxiang. This standard was first issued in 1973 and revised for the second time in August 1994. 2
(93.0±2.0)×10-1
2.557±0.015
690±10
510±10
470±10
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.