當前位置:上海境宣實業(yè)有限公司>>日本光明北川式氣體檢測管>>氣體快速檢測管>> 120SH硫化氫H2S氣體檢測管120SH HYDROGEN SULPHIDE 0.1-4.0%
室內空氣甲醛檢測管No.713 FORMALDEHYDE 0.01-0
氯乙烯CH2=CHCl氣體測毒管132SC VINYL CHLORID
氯乙烯CH2=CHCl氣體檢知管132SB VINYL CHLORID
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
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