| Chloroform | CHCl3 | NO.137L | |
|
|
|||
| Performance |
|
Measuring Range |
0.5 to 10 ppm |
10 to 27 ppm |
|
Number of Pump Stroke |
5 |
3 |
|
Correction Factor |
1 |
2.7 |
|
Sampling Time |
2 minutes per pump stroke |
|
|
Detecting Limit |
0.1 ppm (n=5) |
|
|
Color Change |
White |
|
|
Reaction Principle |
Chloroform is oxidized by nascent oxygen to liberate acid gas. |
|
| Coefficient of Variation | 10% (for 0.5 to 2 ppm), 5% (for 2 to 10 ppm) | |
| 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 |
Concentration |
Interference |
Change color by itself |
|
Cl2, Br2, I2 |
1/20 time |
Plus error |
Produce pale purple stain |
|
Unsaturated halogenated HCs |
1/20 time |
Plus error |
Produce pale purple stain |
|
Saturated halogenatedHCs |
1/2 time |
Plus error |
Produce pale purple stain |
| Calibration gas generation | Permeation tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 10ppm | - | - |
|
|
| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Pale purple