二氧化氮檢測管NO.9P
GASTEC為了滿足用戶在氣體檢測方面的需要，而開發出了電子自動采氣泵。用傳統的電子吸氣泵幾乎不能進行有效的采氣，因為檢測管里的填充試劑密度很高。而GASTEC開發的GSP電泵系列能提供強勁吸力，能滿足特定的檢測管的取樣要求。電泵和檢測管組成的新的檢測系統能適用于作業環境的檢測。 二氧化氮檢測管NO.9P,二氧化氮NO2檢測管NO.9P，GASTEC二氧化氮NO2檢測管NO.9P氣體檢測管，GASTEC二氧化氮NO2檢測管NO.9P電泵用氣體檢測管檢測范圍0.02-0.2ppm。
Nitrogen dioxide | NO.9P |
| NO2 |
| This detector tube is only to be used with automatic gas sampler GSP-300FT-2 |
Specifications
| Calibration Range | 0.02 - 0.20 ppm |
| Measuring range | 0.02 - 0.20 ppm |
| Sampling （flow） Rate | 100mL/min |
| Sampling Volume | 3000mL |
| Sampling Time | 30min |
| Detecting Limit | 0.004 ppm |
| Colour Change | White → Orange brown |
| Corrections for temperature/humidity | Necessary for 0 to 40ºC Unnecessary for R.H.0 to 90% |
| Shelf life | 2 years |
| Accuracy | CV=5-10% （CV: Coefficient of variation = σ: standard deviation / mean value x 100） |
Possibly coexisting substances and their interferences
| Substance（s） | Interference | Colour change by itself |
| Carbon monoxide | No | No | |
| Nitric oxide | No | No | |
| Chlorine | 0.10ppm | No | Reddish brown from 0.08ppm |
| Ozone | 0.04ppm | No | Pale yellow from 0.1ppm |
| Carbon dioxide | No | No | |
| Acetone | No | No | |
| p-Dichlorobenzene | No | No | |
| n-decan | No | No | |
| Aromatic hydrocarbons | No | No | |
| Formaldehyde | No | No |
| Calibration gas generation | Permeation tube method |
| TLV-TWA | TLV-S | Explosive range |
| 3 ppm | 5 ppm | -- |
