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简单介绍:
1,3-丁二烯气体检测管174LL 1,3-Butadiene CH2:CHCH:CH2,Measuring Range 0.5 to 5 ppm Number of Pump Strokes 1 Correction Factor 1 Sampling Time 3 minutes per pump stroke Detecting,1,3 -丁二烯气体检测管价格
详情介绍:
1,3-丁二烯气体检测管174LL 1,3-Butadiene No.174LL
CH2:CHCH:CH2
Performance |
Measuring Range | 0.5 to 5 ppm |
Number of Pump Strokes | 1 |
Correction Factor | 1 |
Sampling Time | 3 minutes per pumpstroke |
Detecting Limit | 0.1 ppm (n=1) |
Color Change | Pink → PaleYellow |
Reaction Principle | CH2:CHCH:CH2+KMnO4 → Reaction Product |
Coefficient ofVariation | 10% (for 0.05to 1 ppm-hr),5% (for 2 to 5 ppm-hr) |
ShelfLife | 3 Years |
Correctionsfor temperature & humidity | Unnecessary |
Store the tubes inthe refrigerator to keep at 10oC (50oF) orbelow. |
Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Ammonia | - | No effect | Nodiscoloration |
CO &CO2 | - | No effect | Nodiscoloration |
H2S,HCN | - | No effect | Nodiscoloration |
Acetylene | 50 ppmr | Plus error | Discolors towhite |
Olefins | - | Plus error | Discolors paleyellow |
Calibration gasgeneration | Diffusion tubemethod |
TLV-TWA | TLV-STEL | Explosive range |
2ppm | - | 2.0 to 12% |