When monitoring your work environment for toxic gases, you need to make sure your monitor is properly calibrated for your target gas, such as chlorine, carbon monoxide, or your readings may be inaccurate. To properly calibrate your monitor, you’ll need to use a specific concentration of the gas you’re trying to detect. This is known as a “calibration gas.” Calibration gases come in disposable or non-refillable cylinders that are usually made of steel or aluminum.
However, it’s important to note that calibration gases do have a shelf life, just like other perishable products. If the gas is expired, you won’t be able to properly calibrate your monitor, which can lead to inaccurate results. It’s best to check the expiration date before calibrating your monitor. You should also replace your calibration gases according to the manufacturer’s recommendations.