簡單介紹: 硫化氫氣體檢測儀 4LT H2S,Measuring Range 0.1 to 0.2 ppm 0.2 to 2.0 ppm 2.0 to 4.0 ppm Number of Pump Strokes 2 1 1/2 Correction Factor 1/2 1 2 Sampling Time 1 minute per pump ......
詳細(xì)介紹
詳情介紹:
硫化氫氣體檢測儀 4LT H2S Hydrogen sulphide No.4LT
H2S
Performance
MeasuringRange
0.1 to 0.2 ppm
0.2 to 2.0 ppm
2.0 to 4.0 ppm
Number of Pump Strokes
2
1
1/2
CorrectionFactor
1/2
1
2
SamplingTime
1 minute per pumpstroke
DetectingLimit
0.05 ppm (n=2)
ColorChange
Pale Yellow → ReddishBrown
ReactionPrinciple
H2S + HgCl2 → HSHgCl + HCl HCl + Base → Chloride
Coefficient ofVariation
10% (for 0.2 to 0.5ppm), 5% (for 0.5 to 2 ppm)
ShelfLife
2Years
Correctionsfor temperature & humidity
Temperature correction is necessary
Store the tubes inthe refrigerator to keep at 10oC (50oF) orbelow.
Possible coexisting substances and theirinterferences