 Quartz heaters --Ozone free quartz tube |
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¡¾Back to quartz heaters¡¿
Ozone-free quartz tubing. clear, cut surface slight purple. The product blocks wavelength<220nm,while transmit over 70% in 253.7nm.Good for all kinds of germcidal lamps.
¡ùFeatures
IP 105,clear quartz tube doped with Ti. Has a strong ability to prevent dense UV radiation but release no ozone.
¡ù Dimensional Tolerance
Range of OD |
WT |
Siding |
Out of Round |
Bow/1220mm |
5.0¡À0.08 |
1.0¡À0.06 |
10% |
1.5% |
2.5% |
12.0¡À0.10 |
1.0¡À0.10 |
10% |
1.5% |
2.5% |
15.0¡À0.12 |
1.0¡À0.12 |
15% |
1.5% |
2.5% |
17.0¡À0.15 |
1.0¡À0.15 |
15% |
1.5% |
2.5% |
18.5¡À0.15 |
1.0¡À0.15 |
15% |
1.5% |
2.5% |
19.0¡À0.20 |
1.0¡À0.15 |
15% |
1.5% |
2.5% |
25.0¡À0.30 |
2.5¡À0.20 |
15% |
1.5% |
2.5% |
¡ù Chemical Composition Unit: ppm
Al |
Fe |
K |
Na |
Li |
Ca |
Mg |
Cu |
Mn |
Pb |
B |
cr |
OH |
25 |
1.5 |
2.5 |
2.5 |
0.6 |
2.3 |
0.5 |
0.1 |
0.5 |
0.01 |
0.2 |
0.1 |
£¼ 10 |
¡ù Physical Properties
Density 20 ¡æ kg.m -3 (¡Á10 3 ) |
2.2 |
Coefficient of expansion 25-300 ¡æ ¡æ -1 (¡Á10 -6 ) |
0.56 |
Softening point ¡æ |
1630 |
Annealing point ¡æ |
1180 |
Strain point ¡æ |
1070 |
Youngs modulus Pa |
7.3¡Á10 5 |
¡ù Spectral Transmission at 1.0mm Thickness
Nm |
185 |
£¼ 220 |
230-280 |
550 |
590 |
780 |
% |
0 |
0 |
¡Ý85 |
¡Ý90 |
¡Ý92 |
¡Ý92 |
