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简单介绍：
甲苯器检测管122DL C6H5CH3 Toluene，Measuring Range 2 to 500 ppm Sampling Hours 1 to10 hours Detecting Limit 2 ppm (10 hours)甲苯器检测管价格，甲苯器检测管122DL C6H5CH3 Toluene
详情介绍：
甲苯器检测管122DL C6H5CH3 Toluene
Toluene No.122DL
C6H5CH3
| Performance |
Measuring Range | 2 to 500 ppm |
Sampling Hours | 1 to10 hours |
Detecting Limit | 2 ppm (10hours) |
Color Change | White → Brown |
Reaction Principle | Toluene react withformaldehyde to form condensation polymer, which is brown incolour. |
| Coefficient ofVariation | 10%(for 20 to 500 ppm-hr) |
| ShelfLife | 2 Year |
| Correctionsfor temperature & humidity | Temperature correction isnecessary |
| Store the tubes atcool and dark place. | |
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change colour byitself to |
Aromatichydrocarbons | + | Brown | |
| hols, Ketones, Esters | 30ppm | No |
No |
| Othersubstance measurable with this detectortube |
Substance | CorrectionFactor | SamplingTime | MeasuringRange |
Xylene | Factor: 1.7 | 1 to 10 | 3.4 to850 ppm |
Ethyl benzene | Factor: 1.4 | 1 to 10 | 2.8 to700 ppm |
Cumene | Factor: 1.7 | 1 to 10 | 3.4 to 850 ppm |
Benzene | Factor: 1.2 | 1 to 10 | 2.4 to 600 ppm |
Stylene | Factor: 13 | 1 to 10 | 26 to 6500 ppm |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 20 ppm | - | 1.4to 6.7% |