Gastec 122TP 检测甲苯气体管 C6H5CH3(2-80 ppm)

Calibration Range: 2 - 80 ppm
Measuring Range: 2 - 80 ppm
Sampling (flow) Rate: 100mL/min
Sampling Volume: 1000mL
Sampling Time: 10 min
Colour Change: White → Brown 
Nr. of tests: 5 tubes
Automatic Gas Sampler: GSP-300FT-2



Calibration Range 2 - 80 ppm
Measuring range 2 - 80 ppm
Sampling (flow) Rate 100mL/min
Sampling Volume 1000mL
Sampling Time 10min
Detecting Limit 1 ppm (1000mL)
Colour Change White → Brown
Corrections for temperature/humidity Unnecessary for 0 to 40ºC
Unnecessary for R.H.0 to 90%
Shelf life 2 years
Accuracy CV=5-10%
(CV: Coefficient of variation = σ: standard deviation / mean value x 100)
Possibly coexisting substances and their interferences (NOTE)
Substance(s) Interference Colour change by itself
Alcohols 200ppm No No
Ethyl benzene 5ppm + Brown
Xylene 10ppm + Brown
Ethyl acetate 200ppm No No
Aliphatic hydrocarbons 100ppm No No
Organochlorine hydrocarbons 150ppm + No
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
20 ppm(2014) -- 1.4。チ6.7%


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