This part of GB/T 14634 specifies the method for the determination of the density of rare earth tricolor phosphors for lamps. This section applies to the determination of the density of rare earth tricolor phosphors for lamps.
GB/T 14634.5-2010 history
2010GB/T 14634.5-2010 Test methods of rare earth three-band phosphors for fluorescent lamps.Part 5:Determination of density
2002GB/T 14634.5-2002 Test methods of rare earth three-band phosphors for fluorescent lamps-Determination of density