SJ/T 10588.3-1994 Technical data of DB-404 electronic glass SJ/T10588.3-1994 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-404 electronic glass Technical.data of type DB-404 electronicie giass Subject content and scope of application This standard specifies the chemical composition and physical and chemical performance indicators of DB-404 electronic glass. SJ/T.10588:3-94 Replaces SJ674-83 This standard applies to glass materials for core columns and exhaust pipes for electron tubes, lighting lamps and cathode ray 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 55.5±1.0 Note: 1) Fe:O, as an impurity control, is not included in the percentage composition. Physical and chemical performance indicators are shown in Table 2. Test method approved by the Ministry of Electronics Industry of the People's Republic of China on August 8, 1994 GB9000.12 GB9000.10 GB9000.14 Implementation on December 1, 1994 Indicator name SJ/T10588.3-94 Average linear thermal expansion coefficient a in the range of 0 to 300℃Density Softening point Annealing point Strain point Dielectric loss tangent value tgg×10 at a frequency of 6MHz and a temperature of 20℃Temperature when the volume resistivity is 100Ma·cm (Tx—100)Thermal stability Water resistance and chemical stability level Additional remarks: This standard is under the jurisdiction of the Standardization Research Institute of the Ministry of Electronics Industry. 1/℃ This standard was drafted by Factory 774 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. Refers to (91.0±2.0)×10-7 3.055±0.030 615±10 450±10 400±10bzxz.net ≥325 ≥105 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.