Gastec 122P 检测甲苯气体管 C6H5CH3（100-7000μg/m3）
制造商: Gastec Model: 122P - 联系
Calibration Range: 100-2500μg/m3
Measuring Range: 100-7000μg/m3
Sampling (flow) Rate: 200mL/min
Sampling Volume: 6000mL, 2000mL
Sampling Time: 30 min, 10 min
Colour Change: White → Pale brown
Nr. of tests: 5 tubes
Automatic Gas Sampler: GSP-300FT-2
Details
Specifications
| Calibration Range | 100-2500μg/m3 |
| Measuring range | 100-7000μg/m3 |
| Sampling (flow) Rate | 200mL/min |
| Sampling Volume | 6000mL, 2000mL |
| Sampling Time | 30min, 10min |
| Detecting Limit | 50μg/m3(6000mL) |
| Colour Change | White → Pale brown |
| Corrections for temperature/humidity | Unnecessary for 5 to 35 ºC Unnecessary for R.H.0 to 80% |
| Shelf life | 2 years |
Possibly coexisting substances and their interferences (NOTE)
| Substance(s) | Interference | Colour change by itself |
| Ethanol | No | No | |
| Xylene,Styrene |  1000μg/m3 |
+ | Pale brown |
| p-Dichlorobenzene | No | No | |
| α-Pinene | No | No | |
| n-Hexane | No | No | |
| Aromatic hydrocarbons | + | Pale brown | |
| Formaldehyde |  1/3 |
No | No |
Other substance(s) measurable with this detector tube
| Substance(s) | Correction Factor | Pump Strokes [n] | Measuring Range |
| Ethyl benzene | coefficient: 1.1 | 200mL/min x 30min | 110-2750μg/m3 |
| Xylene | coefficient: 5.4 | 200mL/min x 30min | 540-13500μg/m3 |
| Calibration gas generation | Permeation tube method |
Miscellaneous
| Electric sampling pump This detector tube is suited for measuring toluene in indoor environments. The GSP-200 / GSP-300FT-2 series automatic gas samplers (or comparable sampling devices/pumps) should always be used for optimal performance. A deviation of +/-10% in the sampling flowrate (i.e. amount of air flowing through the tube at a given moment) or the sampling amount (total sampled amount of target substance) causes an average margin of error of approx. +/-10% (maximum +/-20%) in the indicated value. |
| TLV-TWA | TLV-STEL | Explosive range |
| 20 ppm(2014) | -- | 1.4｡ﾁ6.7% |
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