液化石油氣檢測(cè)管100A
Liquid petroleum gas(LPG) 00A
Hydrocarbons C3-C4
Performance |
Measuring Range | 0.02 to 0.8% |
Number of Pump Strokes | 1 |
Correction Factor | 1 |
Sampling Time | 2 minutes per pumpstroke |
Detecting Limit | 0.002% (n=1) |
Color Change | Orange → BlackishGreen |
Reaction Principle | LPG+Cr6++ H2SO4 → Cr3+ |
Coefficient ofVariation | 10% (for 0.02 to 0.2%), 5% (for 0.2 to 0.8 %) |
ShelfLife | 3 Years |
Correctionsfor temperature & humidity | Unnecessary |
Store the tubes at cool and darkplace. |
Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Ketones | 0.2% | Plus error | Produce similar stainby themselves. |
Esters | 0.2% | Plus error | Produce similar stainby themselves. |
Hydrocarbons( 3) | - | Plus error | Produce similar stainby themselves. |
Othersubstance measurable with this detector tube |
Substance | CorrectionFactor | PumpStrokes | MeasuringRange |
Propylene | 1 | 1 | 0.02 to 0.8 % |
Xylene | by scale | 2 | 0.1 to 1.2% |
Calibration gasgeneration | Staticgas dilution method |
TLV-TWA | TLV-STEL | Explosive range |
- | - | - |