GB/T 14634.4-2002
AbolishedTest methods of rare earth three-band phosphors for fluorescent lamps--Determination of particle size distribution by electric sensing zone technique
灯用稀土三基色荧光粉试验方法 电传感法粒度分布测定
Application Summary AI generated
This standard specifies the method for determining the particle size distribution of rare earth three-band phosphors used in fluorescent lamps, employing the electric sensing zone technique (e.g., Coulter principle). It is applied in the manufacturing and quality control of phosphor powders for energy-saving fluorescent lamps, ensuring consistent particle size for optimal luminescence and coating uniformity. The test is critical for metallurgical and lighting industries to verify powder specifications during production and incoming material inspection.
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