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简单介绍：
5M二氧化硫检知管 Sulphur dioxide SO2 ，20to100ppm 100to1800ppm 1800to3600ppm，检测种类：氨气、苯、一氧化碳、硫化氢、二氧化硫、氟化氢、二氧化碳、氯气、氯化氢、氮氧化物、碳氢化合物总量、丙酮、二甲苯、丁酮、甲苯、磷化氢、二氧化氮、三氯乙稀、氰化氢、氯乙稀、硫醇、二氧化氯、溴化甲、臭氧、丁烷、汽油、柴油、甲醛检测管价格等
详情介绍：
5M二氧化硫检知管 Sulphur dioxide SO2
Sulphur dioxide No.5M
SO2
| Performance |
MeasuringRange | 20 to 100ppm | 100 to 1800ppm | 1800 to 3600ppm |
Number of PumpStrokes | 4 | 1 | 1/2 |
CorrectionFactor | 1/5 | 1 | 2 |
SamplingTime | 45 seconds per pumpstroke | ||
DetectingLimit | 4 ppm (n=4) | ||
ColorChange | Purple →Yellow | ||
ReactionPrinciple | SO2 + BaCl2 +H2O 仺 BaSO3 + 2HCl | ||
| Coefficient ofVariation | 10% (for100 to 600 ppm), 5% (for 600 to 1800 ppm) | ||
| ShelfLife | 3Years | ||
| Correctionsfor temperature & humidity | Temperature correction is necessary | ||
| Store the tubes at cool and darkplace. | |||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Carbonmonoxide, | - | No effect | Nodiscoloration |
Carbondioxide | - | No effect | Nodiscoloration |
Nitrogendioxide | 1/10 | Plus error | Produces whitestain |
Hydrogensulfide | 10 times | Minus error | Nodiscoloration |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | High pressure gascylinder method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 2ppm | 5ppm | - |