Home / Standards / GB/T 14634.4-2002 GB/T 14634.4-2002 Abolished Test 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 Standard Type GBT ICS 77.120.99 CCS H65 Status 废止 Issue Date 2002-11-19 Implementation 2003-06-01 Responsible Dept 国家发展改革委 Drafting Unit N/A