Gastec 123TP 检测二甲苯气体管 C6H4(CH3)2(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
Carbon monoxide 75ppm Unclear demarcation Brown (When 50ppm or higher)
Ethyl benzene 1/3 + Brown
Ethyl acetate 400ppm No No
Dichloro methane 30ppm No No
N,N,dimethylformamide  25ppm No No
Trichloroethylene 1/2 + No
Toluene 1/3 + Brown
n-Hexane 200ppm Unclear demarcation No
Methanol 200ppm No No
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
100 ppm(2014) 150 ppm(2014) 1.0。チ7.0%


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