GB/T 23595.5-2009

Active

Test methods of rare earth yellow phosphor for white LED lamps - Part 5: Determination of pH value

白光LED灯用稀土黄色荧光粉试验方法 第5部分:pH值的测定

Standard Type
GBT
ICS
77.120.99
CCS
H14
Status
Active
Issue Date
2009-04-23
Implementation
2010-02-01
Centralized Committee
国家标准委
Issuing Authority
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies the method for determining the pH value of rare earth yellow phosphors used in white LED lamps. It is applied in the quality control and testing of phosphor materials during the manufacturing process of white LEDs, ensuring that the phosphor's chemical properties meet specified requirements for stable performance. The test is critical for evaluating the purity and consistency of the phosphor slurry used in LED packaging.

Related Standards

GB/T 5153-2003 Designation and composition of wrought magnesium and magnesium alloys GB/T 12690.12-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of thorium content--Arsenazo III spectrophotometric method and inductively coupled plasma mass spectrum method GB/T 12690.13-2003 Chemical analysis methods for non-rareearth impurities of rare earth metals and their oxides--Determination of molybdenum and tungsten content--Induct-ively coupled plasma atomic emission spectrographic method and inductively coupled plasma mass spectrum GB/T 12690.4-2003 Chemical analysis methods for non-rare earth impurities ofrare earth metals and their oxides--Determination of oxygen and nitrogen content--Impulse-infrared and impulse-thermal conductance absorption method GB/T 12690.11-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of magnesium content--Flame atomic absorptionspectrometric method GB/T 12690.10-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of phosphorus content by molybdenum blue spectrophotometric method GB/T 12690.6-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of iron content--Kalium thiocyanate,1,10-phenanthroline spectrophotometric method GB/T 12690.5-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of Al、Cr、Mn、Fe、Co、Ni、Cu、Zn、Pb content by inductively coupled plasma atomic emission spectrographic method--Determination of Co、Mn、Pb、N
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