blue triband phosphor powder for CFLs - TY-B

1.Visible mechanical impurity is not allowed inside the powder;
2. No remains through Screen 200 mesh/cm;
3. Density: d≤3.7g/cm3;
4. Median particle diameter: D50≤6.0μ;
5. Relative brightness: ≥100%;
6. Main peak wavelength of the emitting spectrum: 450nm, semi-width of the spectrum band 50nm;
7. Color coordinate: x=0.145, y=0.062.