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石油烯检测管106 Petroleum naphtha
Petroleumnaphtha No.106
Performance |
MeasuringRange | 0.5 to 1 mg/l | 1 to 14 mg/l | 14 to 28 mg/l |
Number of Pump Strokes | 2 | 1 | 1/2 |
CorrectionFactor | 1/2 | 1 | 2 |
SamplingTime | 1 minute per pumpstroke | ||
DetectingLimit | 0.1 mg/l (n=2) | ||
ColorChange | Orange → DarkGreen | ||
ReactionPrinciple | Petroleumnaphtha + Cr6+ + H2SO4 →Cr3+ | ||
Coefficient ofVariation | 10% (for 1 to 4 mg/l), 5% (for 4 to 14 mg/l) | ||
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 |
Sulfurdioxide | 500 ppm | Plus error | Produce greencolor |
Hydrogensulfide | 500 ppm | Plus error | Produceblackish brown |
Acetylene | 3% | Unable tomeasure | Produce blackishbrown |
Propane | 0.2% | Unable tomeasure | Produce blackishbrown |
Organicsolvents | - | Plus error | Produce greenishbrown |
Othersubstance measurable with this detector tube |
Substance | Correction Factor | Pump Strokes | Measuring Range |
Petroleumbenzene | 1.0 | 1/2, 1 or 2 | 0.5 to 28 mg/l |
Petroleumether | 1.0 | 1/2, 1 or 2 | 0.5 to 28mg/l |
Calibration gasgeneration | Staticgas dilution method |
TLV-TWA | TLV-STEL | Explosive range |
- | - | - |