Technical data of Type DB-423 electronic glass

SJ/T 10588.7-1994 Technical data of DB-423 electronic glass SJ/T10588.7-1994 Standard download decompression password: www.bzxz.net

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 application
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 pointbZxz.net
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
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