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简单介绍：
硫酸检测管 35 H2SO4 sulphuric acid，可检测的气体包括二氧化碳、氧气、氢气、臭氧、一氧化氮、氯乙烯、肼、二氧化氯、甲烷、乙烷、一氧化碳、氨气、氯气、二氧化氮、二氧化硫、氟化氢、硫化氢、氯化氢、砷化氢、光气、磷化氢、氰化氢、甲苯等几十种
详情介绍：
硫酸检测管 35 H2SO4 sulphuric acid
sulphuric acid No.35
H2SO4
| Performance |
MeasuringRange | 0.5 to 5mg/m3 |
Number of PumpStrokes | 5 |
CorrectionFactor | 1 |
SamplingTime | 25 seconds per pumpstroke |
DetectingLimit | 0.2mg/m3(n=5) |
ColorChange | Pale yellow → Reddishpurple |
ReactionFormula | H2SO2+ BaCl2 仺 2HCl HCl+Base 仺 Chloride |
| Coefficient of Variation | 10% (for0.5 to 1 mg/m3), 5% (for 1 to 5 mg/m3) |
| Shelf Life | 2Years |
| Corrections for 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 |
Hydrogenchloride | 0.05ppmor higher | Plus error | Discolors to reddishpurple |
Chlorine | 0.8ppm or higher | Plus error | Discolors to reddishpurple |
Sulfurdioxide | - | No effect | Nodiscoloration |
Nitrogendioxide | 1ppm orhigher | Plus error | Discolors to reddishpurple |
Hydrogenfluoride | 0.1ppmor higher | Plus error | Discolors to reddishpurple |
| Othersubstance measurable with this detector tube |
| Calibration gasgeneration | Vaper pressuremethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 1mg/m3 | - | - |