Ozone Free  quartz tube , on the basis of pure quartz glass, with the incorporation of titanium oxide of 100-200ppm, and Ozone Quattz tube glass surface colorless sectional slightly purple. The product can be substantially cutoff ultraviolet spectrum 220nm before 253.7nm at the UV transmittance of 70% or more, the wavelength of the ultraviolet light has a strong sterilizing power. Ozone Quartz can be used for the production of various germicidal lamp.

(No ozone quartz other performance is similar to transparent quartz glass tube.)


Dimensional Tolerance

Dimensional Tolerance (table I)

外径范围 Range of 0D 外径 0D 壁厚 WT 偏壁度 Siding 椭圆度 Out of Round 弯曲度 Bow/1220mm ≤6mm ±20％ ±10％ 12％ 2.0％ 2.5mm 6.0-15.00m ±1.25％ ±8％ 10％ 1.5％ 2.5mm 15.00-20.00mm ±1.25％ ±10％ 15％ 1.5％ 2.5mm 20.00-25.00mm ±1.25％ ±10％ 15％ 1.5％ 3.0mm 25.00-30.00mm ±1.35％ ±12％ 15％ 1.5％ 3.0mm 29.00-38.00mm ±1.35％ ±12％ 15％ 1.5％ 3.0mm

单位/化学成分及羟基含量　Chemical composition&OH (table II)

铬Cr 锗Ge 铁Fe 镁Mg 钛Ti 钙Ca 铝Al 钠Na 锂Li 钾K 羟基OH 20 0.4 1.5 0.4 100 1.0 16 2.3 0.5 2.0 ＜25

物理性能 　Physical Properties (table III)

密度 Density 20℃　kg．m-3(×103) 2.2 热膨胀系数 Coefficient of expansion 25-300℃ c-1(×10-6) 0.56 软化点 Softening point(℃) 1630 退火点 Annealning point(℃) 1180 变形点 Strain point(℃) 1100 杨氏模量 Youngs modulus(pa) 7.3×105

光在1.0mm厚处的透达率 　Spectral Transmission at 1.0mm Thickness (table IV)

nm ＜220 230-280 290-330 350 450 550 590 780 ％ 0 ＜15 0 15 88 92 93 93

Ozone free quartz tube is clear and with slight purple cut surface. The product's wavelength is below 220nm, while transmits over 70% in 253.7nm, ideal for all kinds of germicidal lamps