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一氧化碳气体检测管1HH Carbon monoxide,Measuring Range 1 to 2% 2 to 40% Number of Pump Strokes 1 1/2 Correction Factor 1/2 1 Sampling Time 1 minute per 1/2 pump stroke Detecting,一氧化碳气体检测管价格
详情介绍:
一氧化碳气体检测管1HH Carbon monoxide
Carbon monoxide No.13
CO
Performance |
MeasuringRange | 1 to 2% | 2 to 40% |
Number of Pump Strokes | 1 | 1/2 |
CorrectionFactor | 1/2 | 1 |
SamplingTime | 1 minute per 1/2 pumpstroke | |
DetectingLimit | 0.5% (n=1) | |
ColorChange | White → Blackishbrown | |
ReactionPrinciple | 5CO +I2O5 +H2S2O7 → I2 | |
Coefficient of Variation | 10% (for 2 to 15 %), 5% (for 15 to 40 %) | |
ShelfLife | 3Years | |
Correctionsfor temperature & humidity | Unnecessary | |
Store the tubes at cool and darkplace. |
Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Acetylene | 0.2% | Puls error | Produce darkbrown |
Olefines | 2/3 | Puls error | Produce brownstain |
Butane | 1% | Puls error | Produce palebrown |
Propane | 20% | Pulserror |
Calibration gasgeneration | Diffusion tubemethod |
TLV-TWA | TLV-STEL | Explosive range |
25 ppm | - | 12.5 to 74% |