产品分类
PRODUCT CENTER
联系我们
销售电话：时经理
18121126516
021-64835787
产品详情
简单介绍：
汽油检测管101L CnHm Gasoline，Measuring Range 30 to 1000 ppm 1000 to 2000 ppm Number of Pump Strokes 2 1 Correction Factor 1 2 Sampling Time 2 minutes per pump stroke Detecting Limit 5 ppm (n=2)汽油检测管价格
详情介绍：
汽油检测管101L CnHm Gasoline
Gasoline No.101L
CnHm
| Performance |
Measuring Range | 30 to 1000 ppm | 1000 to 2000ppm |
Number of Pump Strokes | 2 | 1 |
Correction Factor | 1 | 2 |
Sampling Time | 2 minutes per pumpstroke | |
Detecting Limit | 5 ppm (n=2) | |
Color Change | Brownish yellow →Dark green | |
Reaction Principle | CnHm + Cr6++ H2SO4 → Cr3+ | |
| Coefficient ofVariation | 10% (for 30 to 300ppm), 5% (for 300 to 1000 ppm) | |
| 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 |
| Hydrogen sulfide | - | Plus error | Dark brown |
Acetylene | - | Plus error | Dark brown |
| Aromatic HCs | - | Pluserror | Darkgreen |
| Esters,Ethers,Alcohols | - | Pluserror | Darkgreen |
| Sulfur dioxide | - | Pluserror | Darkgreen |
Organic solvents( C3) | - | Pluserror | Darkgreen |
| Othersubstance measurable with this detector tube |
Substance | Correction | No. of PumpStrokes | MeasuringRange |
Allylchloride | Factor: 34 | 1/2 | 0.1 to 3.4% |
Heptane | Factor: 1.0 | 1 or 2 | 30 to 2000 ppm |
Isobutene | Factor: 22 | 1 | 0.07 to2.2% |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 300ppm | 500ppm | 1.4 to 7.6% |