UV stop quartz tube

This cerium-added quartz tube can effectively prevent all radiation of UV-B and UV-C ultraviolet and most radiation of UV-A ultraviolet .
UV stop quartz tube is the best materials to prevent UV with best transparent performance. It can be used to make quartz halogen lamp , gas discharge lamp and other UV lamp-house ,
which will effectively protect human and object from hurt of ultraviolet and maintain the best efficiency of light transmission.

Chemical Composition   Unit: ppm

   Cr        Ge      Fe   Mg   Ti     Ca  Al  Na       Li          K          OH
＜0.5  ＜0.4     1.5  0.5  2.5   2.3 25    2.5    0.6       2.5         1-50

Spectral Transmission at 1.0mm Thickness

Nm: ＜220  230-280  290-330  315  350  380  590  780
%   :       0       ＜19         0            15   88   92   93   93