Calibration gas cylinders are usually standard capsules that are used to transport and move all kinds of gases. The calibration gas cylinder is suitable for the type of gas filled and its amount is available in different volumes and materials, and the most common types of calibration gas cylinders are disposable aluminum cylinders with specific capacity and steel and aluminum cylinders with capacities of 10 liters, 20 liters and 50 liters.
Contents of calibration gas cylinders
Calibration gases supplied in cylinders are usually a reference gas or a mixture of reference gases that are used as standards for comparison and calibration (or calibration of devices). Gas detectors must be calibrated for accurate detection.
The importance of calibration gases
Carrying out scientific and research work requires precision in measuring by devices. If the devices that must with calibration gas be calibrated do not have sufficient accuracy, the results of many scientific researches, which happen to be of vital value, cannot be cited. In addition, in some cases, devices for detecting toxic gases are installed in places that must accurately detect the presence of the desired toxic gas. For this reason, the use of valid calibration gas plays a vital role.
The price of cylinders
Usually, the cost of single-use cylinders is charged to the buyer. However, reusable cylinders are returned to the gas distribution company for recharging, and practically the buyer only pays for the calibration gas.
Different applications of calibration gas
Devices such as gas chromatography (gas chromatography) require precise calibration. Various gas meters and detectors in industries, online analyzers in oil and gas industries, medical diagnostic devices and many other things in laboratories, industry and medicine use calibration gas.
Calibration gas mixture
In some cases, the calibration gas is a mixture of different gases that is prepared according to the needs and orders of customers. Some of these items can be prepared inside the country, and some others cannot be prepared inside, so they are imported from abroad.
Types of calibration gases
Gases such as H2S, CH4, CO2 and NO and SO2 or a mixture of different gases are used as calibration gas.
The regulators used for calibration gases are different for each type of gas and are used according to the corrosiveness of the gas and other conditions.
The selection of the calibration gas cylinder is also done according to the type of gas and the restrictions it creates.