Detector Tube, Measurement Range 2 to 60 ppm, Gas Detected Benzene, For Use With Draeger Accuro Pump, Color Change White to Brown Gray, Operating Pressure 1,013 hPa, Operating Temperature - Minimum 32 Degrees F, Tube Material Glass, Break-Off Tip Yes, Calibrated Yes, Product Type Gas Detection Tube, Shelf Life 2 yr, Application Civil Defense, Fire Brigades, Industrial Applications, Military, Includes Instructions, Sampling Time 8 min (2 to 60 ppm), Chemical Formula C6H6, CAS Number 71-43-2