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Quantity of tubes/box: 2x10
Application: Indoor air pollutants
Gas to be measured: ETHYL BENZENE
Measuring range: 0.05-1.2 ppm
Sampling time: 200ml/min×20min
Detectable limit: 0.01 ppm
Shelf life: 1 year（Necessary to store in refrigerated conditions ; 0～10℃）
Operating temperature: 5～35℃
Reading: Scales printed on the tube are calibrated by Toluene at the sampling of 200ml×20min and Ethyl benzene concentration is determined by using a conversion chart.
Colour change: White→Brown
