低濃度二氧化氮NO2氣體檢知管117SD NITROGEN DIOXIDE 0.1-1.0ppm 返回列表頁

低濃度二氧化氮NO2氣體檢知管117SD NITROGEN DIOXIDE 0.1-1.0ppm

Tube 17SD
1. PERFORMANCE
1） Measuring range ：0.1-1.0 ppm
Number of pump strokes 3（300ml）
2） Sampling time ：2.25 minutes/3 pump strokes
3） Detectable limit ：0.01 ppm（300ml）
4） Shelf life ：1.5 years
5） Operating temperature ：0～40℃
6） Reading ：Direct reading from the scale calibrated by 3 pump strokes
7） Colour change ：White→pale purple
2. RELATIVE STANDARD DEVIATION
RSD-low：10％　RSD-mid.：10％　RSD-high：10％
3. CHEMICAL REACTION
4. CALIBRATION OF THE TUBE
PERMEATION TUBE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1.0
0.8
0.6
0.4
0.2
0.1
300ml
ppm
（White）
DEHUMIDIFIER
117SC NITROGEN DIOXIDE
Substance Interference ppm Coexistence
Ozone aTfhfeec atecdc.uracy of readings is not 2 Higher readings are given.
Sulphur dioxide 〃7 Lower readings are given.
Chlorine Similar stain is produced. Higher readings are given.
Formaldehyde The accuracy of readings is not
affected.
Formic acid 〃
Carbon monoxide 〃
Carbon dioxide 〃
Ethanol 〃
NO2＋H2N
CH3 CH3
NH2 Nitroso compound