硫化氫H2S氣體檢測管120SH HYDROGEN SULPHIDE 0.1-4.0%

Tube 20SH
1. PERFORMANCE
1） Measuring range ：0.1-4.0％
Number of pump strokes 1（100ml）
2） Sampling time ：1 minute/1 pump stroke
3） Detectable limit ：50 ppm
4） Shelf life ：3 years
5） Operating temperature ：0～40℃
6） Reading ：Direct reading from the scale calibrated by 1 pump stroke
7） Colour change ：Pale blue→Black
2. RELATIVE STANDARD DEVIATION
RSD-low：10％　RSD-mid.：5％　RSD-high：5％
3. CHEMICAL REACTION
By reacting with Cupric sulphate（II）, Cupric sulphide is produced.
H2S＋CuSO4→CuS
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.1
%
120SH HYDROGEN SULPHIDE
Substance Interference ％ Coexistence
Sulphur dioxide FIG.1 aTfhfeec atecdc.uracy of readings is not 0.5 Lower readings are given.
0
Sulphur dioxide〔％〕?
FIG.1 Influence of Sulphur dioxide