GB/T 4181-1997
AbolishedTungsten wires
钨丝
🔗 Related Standards / 同类标准
GB/T 2413-1980
Piezoelectric ceramic materials--Measuring methods for determination of volume density
GB/T 4072-1983
Measuring method of the phosphor excited by cathod rays
GB/T 4071-1983
Measuring method for the phosphor excited by light
GB/T 5838-1986
Terms for phosphors
GB/T 9506.3-1988
Test method for barium content in getter fill and getter film of barium flash getter
GB/T 9506.1-1988
Generic rules for test method of getter properties
GB/T 10318-1988
Phosphor Y20 for low-light-level picturetubes and storage tubes
GB/T 10306-1988
Cathode carbonates