When is the best time to take a bag sample for accurate analysis?

The best time to take a bag sample for accurate analysis is during the diurnal low. This period typically reflects the lowest levels of various gas emissions or concentrations, allowing for a more accurate baseline measurement. By sampling during this time, factors such as daily fluctuations in gas levels due to human activity or temperature variations are minimized.

Taking samples during the night shift, lunchtime, or late afternoon could lead to significant variations due to increased industrial activity, temperature changes, or other environmental influences that impact gas readings. As a result, the data collected may not accurately represent the typical gas concentrations present in the environment, making the diurnal low the optimal time for sampling.