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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-硫醇類氣體檢測管282S 1-30ppm(H2S),0.5-5ppm(R.SH)
Tube No.282S
HYDROGEN SULPHIDE?MERCAPTANS
1. PERFORMANCE
1) Measuring range:
Hydrogen sulphide 1-30 ppm
Mercaptans 0.5-5 ppm
Number of pump strokes 1(100ml)
2) Sampling time :3 minutes/1 pump stroke
3) Detectable limit :
Hydrogen sulphide 0.2 ppm
Mercaptans 0.2 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change:
Hydrogen sulphide White→Dark brown
Mercaptans Pale yellow→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Hydrogen sulphide detector tube:H2S+Pb(CH3CO2)2→PbS+2CH3CO2H
Mercaptans detector tube:R-SH+HgCI2→RS(HgCI)+HCI
4. CALIBRATION OF THE TUBE
Hydrogen sulphide PERMEATION TUBE METHOD
Mercaptans STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
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