理化指标 Physical & Chemical Standard
1、杂质含量:(见表III)
Impurities: (See table III)
连熔透明、UV石英玻璃管杂质含量表(表三)单位:ppm
Impurities table clear fused quartz tubing and UV quartz tubing Unit : ppm
| 元素名称 Elements | A1、 Ca 、Mg 、Ti 、Fe |
| 连熔透明石英玻璃管
Clear fused quartz tubing |
60 |
| 元素名称 Elements | K、 Na、 Ca、 Mg、 Fe、 Cu、 Ni |
| 连熔UV石英玻璃管
UV quartz tubing |
100 |
2、热稳定性:连熔透明石英玻璃管在1200℃下保温15min,立即在20±5℃的水中急冷,无裂纹、缺口和大于3mm的崩落。
Thermo stability : Clear fused quartz heated for 15 min under 1200℃,and be threw into 20 ±5℃ water, no cracks, no brokerage, chip out<3mm.
3、透过率:(试样厚度1.0mm)(见表IV)
Transmittance rate: (Spectral Transmission at 1.0mm Thickness) (See table IV)
表IV
|
波长(nm) wavelength |
190-220 |
230-280 |
290-320 |
550 |
760 |
| 透过率% Transmittance rate | |||||
| 品 种 Product | |||||
|
连熔透明石英玻璃管 Clear fused quartz tubing |
>60 |
>80 |
>85 |
≥90 |
≥93 |
|
连熔UV-1石英玻璃管 UV-1 quartz tubing |
|
≤8 |
<2 |
≥90 |
≥93 |
|
连熔UV-2石英玻璃管 UV-2 quartz tubing |
0 |
≤8 |
<2 |
≥90 |
≥93 |
|
连熔UV-3石英玻璃管 UV-3 quartz tubing |
0 |
≤8 |
<2 |
≥90 |
≥93 |
|
连熔UV-4石英玻璃管 UV-4 quartz tubing |
|
≤3 |
<1 |
≥80 |
|
| 连熔UV-5石英玻璃管 UV-5 quartz tubing |
|
253.7(nm) |
|
|
|
|
|
68-73 |
|
≥90 |
≥93 |
4、热变色性:连熔透明石英玻璃管在1000℃下保温2小时,单位厚度的试样在290nm波长下,热处理前、后透过率的变化平均值△T不大于4%。
Heating transmittance
CF quartz tubing heated for 2 hrs under 1000℃, transmittance difference comparing to room temperature less than 4% for 290nm.
5、抗析晶性:连熔透明石英玻璃管在1200℃下保温0.5小时,单位厚度的试样在500nm波长下透过率不低于85%。
Anti-crystallization
CF quartz heated 0.5 hrs under 1200℃,transmittance≥85% for 500nm wavelength.