GB/T 14634.4-2002 Test methods for rare earth trichromatic phosphors for lamps - Determination of particle size distribution by electrical sensing method

Basic Information

Standard ID: GB/T 14634.4-2002

Standard Name: Test methods for rare earth trichromatic phosphors for lamps - Determination of particle size distribution by electrical sensing method

Chinese Name: 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 category:National Standard (GB)

state:in force

Date of Release2002-01-01

Date of Implementation:2003-06-01

standard classification number

Standard ICS number:Metallurgy>>Non-ferrous metals>>77.120.99 Other non-ferrous metals and their alloys

Standard Classification Number:Metallurgy>>Nonferrous Metals and Their Alloy Products>>H65 Rare Metals and Their Alloys

associated standards

Publication information

publishing house:China Standards Press

Publication date:2003-06-01

other information

Release date:2002-11-19

Review date:2004-10-14

Drafting unit:Shanghai Yuelong New Materials Co., Ltd.

Focal point unit:National Rare Earth Standardization Technical Committee

Publishing department:General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

competent authority:National Development and Reform Commission

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Introduction to standards:

This standard specifies the method for measuring the particle size distribution of rare earth tri-color phosphors for lamps by the electric sensor method. This standard applies to the measurement of the particle size distribution of rare earth tri-color phosphors for lamps by the electric sensor method. GB/T 14634.4-2002 Test method for rare earth tri-color phosphors for lamps by the electric sensor method. Determination of particle size distribution GB/T14634.4-2002 Standard download decompression password: www.bzxz.net