Why is it important to calibrate equipment before sampling?

Calibrating equipment before sampling is crucial because it ensures accuracy and reliability of the sampling results. Equipment that has not been properly calibrated may provide measurements that are skewed, which can lead to incorrect conclusions about exposure levels and workplace safety. Accurate measurements are vital in occupational hygiene as they guide interventions and policies aimed at protecting workers from hazardous exposures. Calibration adjusts the equipment to a known standard, thereby allowing it to perform accurately under specific conditions. Therefore, consistent and reliable data are achieved, which is essential for making informed decisions regarding health and safety practices in the workplace.