氮氧化物检测管 NO.11A快速检测管是一种现场快速、直读测定气体浓度的检测手段，由一支内装显色指示剂、外壁印有浓度刻度的玻璃管组成，当被测气体通过管内指示剂时发生显色化学反应，测试人便可通过变色界线直接读出气体的浓度。具有数百种气体和不同的浓度范围，欢迎来电咨询。
Nitrogen oxides No.11A
NO+NO2
| Performance |
|
Measuring Range |
0.02 to 0.7 ppm |
0.06 to 2 ppm |
|
|
Sampling Rate |
100mL/min(500mL) |
100mL/min(200mL) |
|
|
Correction Factor |
1 |
2.9 |
|
|
Sampling Time |
5 minutes 2 minutes |
||
|
Detecting Limit |
|
||
|
Color Change |
White → Bluish green |
||
|
Reaction Principle |
ABTS + NO2 → Bluish green product |
||
| Coefficient of Variation | 10% (for 0.02 to 0.2 ppm), 5% (for 0.2 to 0.7 ppm) | ||
| Shelf Life | 3 Years | ||
| Corrections for temperature | Unnecessary for 0 to 40 | ||
|
Correctionsfor humidity Unnecessary for R.H.0 to 90% Store the tubes at cool and dark place. |
|||
| Possible coexisting substances and their interferences | (NOTE) |
|
Substance |
Concentration |
Interference |
Change color by itself |
|
- |
- |
- |
- |
|
- |
- |
- |
- |
|
- |
- |
- |
- |
|
- |
- |
- |
- |
|
- |
- |
- |
- |
| Other substance measurable with this detector tube |
| Calibration gas generation | Permeation tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
|
NO2 : 3 ppm NO: 25 ppm |
NO2: 5 ppm | - |