Detector Tube Measurement Range 0.125 to 23 ppm Gas Detected Acetic Acid For Use With Gastec Pump Color Change Pink to Pale Yellow Operating Pressure 912 to 1 114 hPa Operating Temperature - Minimum 32 Degrees F Tube Material Glass Break-Off Tip Yes Calibrated Yes Product Type Gas Detection Tube Sampling Method With Pump Shelf Life 2 yr Application Industrial Safety and Health Sampling Time 1.5 min (0.25 to 10 ppm) Sampling Volume 100 mL (1 Pump Stroke) Chemical Formula C2H4O2