Ozone Free Quartz Tube

Ozone-free quartz tubing.clear, cut surface slig-ht purple.The product blocks wavelength<220nm, while transmit over 70% in 253.7nm.Good for all kinds of germcidal lamps. Dimensional Tolerance

Range of OD	WT	Siding	Out of Round	Bow/1220mm
5.0±0.08	1.0±0.06	10%	1.5%	2.5%
12.0±0.10	1.0±0.10	10%	1.5%	2.5%
15.0±0.12	1.0±0.12	15%	1.5%	2.5%
17.0±0.15	1.0±0.15	15%	1.5%	2.5%
18.5±0.15	1.0±0.15	15%	1.5%	2.5%
19.0±0.20	1.0±0.15	15%	1.5%	2.5%
25.0±0.30	2.5±0.20	15%	1.5%	2.5%

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	＜10

Physical Properties

Density 20℃ kg.m-3 (×103)	2.2
Coefficient of expansion 25-300℃ ℃-1 (×10-6)	0.56
Softening point ℃	1630
Annealing point ℃	1180
Strain point ℃	1070
Youngs modulus Pa	7.3×105

Spectral Transmission at 1.0mm Thickness

Nm	185	＜220	230-280	550	590	780
%	0	0	≥85	≥90	≥92	≥92