二氧化氮检测管NO.9P
GASTEC为了满足用户在气体检测方面的需要，而开发出了电子自动采气泵。用传统的电子吸气泵几乎不能进行有效的采气，因为检测管里的填充试剂密度很高。而GASTEC开发的GSP电泵系列能提供强劲吸力，能满足特定的检测管的取样要求。电泵和检测管组成的新的检测系统能适用于作业环境的检测。 二氧化氮检测管NO.9P,二氧化氮NO2检测管NO.9P，GASTEC二氧化氮NO2检测管NO.9P气体检测管，GASTEC二氧化氮NO2检测管NO.9P电泵用气体检测管检测范围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 | -- |
