The Kitagawa Gas Detection Tube System is comprised of an Air Sampling Pump and Precision Gas Detection Tubes. When measuring under the circumstances of low temperature, the optional Tube Warminig System (TWS-201) can secure the operating temperature for Gas Detection tubes.
The Kitagawa air sampling pump reproducibly draws 100cc of sample air through the detection tube. All detection tubes are calibrated for a single pump stroke; there is no need for multiple volumes or stroke counters.
Each detector tube is formulated with high purity reagents that absorb and react with the target gas or vapour being measured. A Colorimetric Stain is created that is proportional in length to the concentration. For most tubes, the concentration is read directly off the measurement scale on each tube.