Gas Sampling Tips

Using a pumped gas detector to sample the air inside a confined space is crucial to ensure worker safety. Before taking air samples using a portable gas detector, here are some tips to consider. Perform a bump test on the instrument before you begin Keep the tube length as short as possible. Allow sufficient time for air sample to reach the sensor (allow at least 4 seconds per meter of tubing) Remember to use Teflon tubing for reactive gases such as chlorine, ammonia, hydrogen sulphide and hydrogen chloride

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