检测认证人脉交流通讯录
- 二氧化氮检测管9D NO2 Nitrogen dioxide，Measuring Range 0.1 to 30 ppm Sampling Hours 1 to 10 hours Detecting Limit 0.05 ppm (10 hours) Color Change二氧化氮检测管价格
二氧化氮检测管9D NO2 Nitrogen dioxide的详细介绍
二氧化氮检测管9D NO2 Nitrogen dioxide
Nitrogen dioxide No.9D
NO2
Performance
Measuring Range
0.1 to 30 ppm
Sampling Hours
1 to 10 hours
Detecting Limit
0.05 ppm (10hours)
Color Change
White→ Yellow
Reaction Principle
NO2 + o-Toluidine → Yellowproduct
Coefficient ofVariation 10%(for 1 to 30 ppm-hr)
ShelfLife 1 Year
Correctionsfor
temperature & humidity Temperature correction isnecessary
Store the tubes inthe refrigerator to keep at 10ºC (50ºF) orbelow.
Possible coexisting substances and theirinterferences (NOTE)
Substance
Concentration
Interference
Change color by itself
Bromine,Chlorine
-
Yellow
Ammonia
Carbon monoxide
Nitric oxide
sulphur dioxide
Organic gases and vapour
No
No
Calibration gasgeneration Diffusion tubemethod
TLV-TWA TLV-STEL Explosive range
3 ppm 5 ppm -
