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羰基硫化物检测管21 Carbonyl sulphide，Measuring Range 5 to 10 ppm 10 to 100 ppm 100 to 200 ppm Number of Pump Strokes 2 1 1/2 Correction Factor 1/2 1 2 Sampling，羰基硫化物检测管价格
详情介绍：
羰基硫化物检测管21 Carbonyl sulphide
Carbonylsulphide No.21
COS
| Performance |
Measuring Range | 5 to 10 ppm | 10 to 100 ppm | 100 to 200 ppm |
Number of Pump Strokes | 2 | 1 | 1/2 |
Correction Factor | 1/2 | 1 | 2 |
SamplingTime | 3 minutes per pumpstroke | ||
DetectingLimit | 1 ppm (n=2) | ||
ColorChange | Blue → Yellow | ||
ReactionFormula | COS + I2O5 + H2SO4 → SO2 + CO2 | ||
| Coefficient ofVariation | 10% (for10 to 30 ppm), 5% (for 30 to 100 ppm) | ||
| ShelfLife | 2Years | ||
| 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 |
Carbondisulfide | - | Plus error | Produce yellowstain |
Sulfurdioxide | - | Plus error | Produce yellowstain |
Butane | 5000 ppm | Minus error | Nodiscoloration |
Propane | 5000 ppm | Minus error | Nodiscoloration |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| - | - | 12 to 19% |