Vạch chỉ thị: 25 ~ 150 ppm
Thang đo: 3 ~ 150 ppm
Thời gian lấy mẫu: 1 đến 8 giờ
Chuyển đổi màu: vàng đến tím
Phương trình phản ứng: Cl2C:CCl2 + PbO2 + H2SO4 → HCl, HCl + Base → Chloride
Hệ số chuyển đổi: 15% (25 ~ 50 ppm-hr), 10% (50 ~ 150 ppm-hr)
Số ống trong hộp: 10
Catalog
Performance
| Measuring Range |
3 to 150 ppm |
| Sampling Hours |
1 to 8 hours |
| Colour Change |
Yellow → Purple |
| Reaction Principle |
Cl2C:CCl2 + PbO2 + H2SO4 → HCl HCl + Base → Chloride |
| Coefficient of Variation |
15% (for 25 to 50 ppm-hr), 10% (for 50 to 150 ppm-hr) |
| Shelf Life |
1 Year |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. |
Possible coexisting substances and their interferences
(NOTE)
| Substance |
Interference |
Change colour by itself to |
| Hydrogen chloride, Chlorine |
+ |
Purple |
| 1,2-Dichloroethylene, Trichloroethylene |
+ |
Purple |
| Toluene, Xylene |
No |
No |
| Calibration gas generation |
Diffusion tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 25 ppm(2014) |
100 ppm(2014) |
- |