Ozone free quartz tube surface is colorless and cut surface is
slight purple. This kind tube can stop the ultraviolet lights
before **0nm in spectrum. The ultraviolet transmittance is over *0%
in **3.7 nm , The wavelength of ultraviolet ray has strong
sterilization to prevent thick ultraviolet radiation and does not
produce ozone.
It can be used in the production of various germicidal
lamps
