GASTEC Gas Sampler Acetic Acid Detector Tube 81 81 No. (10 Uses)

---------------------------------------------------------------------- ●Scale range: 2 to 50 ppm●Number of suctions: 2 times (200 ml), 1 time (standard) (100 ml), 1/2 time (50 ml)●Measurement time: 1.5 minutes, 45 seconds, 30 seconds●Coefficient: 1/2, 1, 2●Color change: Pink → Yellow●Temperature and humidity correction: Humidity