Gas detector tube
A gas detector tube is a device used to detect and measure the concentration of a specific gas in the air. It consists of a thin glass tube filled with a chemical reagent, which changes color when it comes into contact with the gas being measured. The tube is placed into a hand-held pump, which draws a known volume of air through the tube. The gas reacts with the chemical reagent, causing a visible color change, which can be matched to a calibration chart to determine the concentration of the gas in parts per million (ppm) or parts per billion (ppb).
Gas detector tubes are commonly used in industrial and occupational settings to monitor the presence of hazardous gases such as carbon monoxide, hydrogen sulfide, and ammonia. They are also used in emergency response situations to quickly identify potential gas leaks or toxic atmospheres. While they are simple to use and relatively inexpensive, gas detector tubes have some limitations, such as a limited range of detectable gases and a lower level of accuracy compared to other types of gas detection equipment.