The narrator in this video has a pet peeve. A mistake that he has seen repeated time and again by not just undergraduate students. Postgraduate and doctoral candidates too make this mistake when working with an analytical balance. In the first part of the video he explains the general functioning of the analytical balance and the steps you need to take to get accurate and consistent results. In relative terms what is important is consistency. Should the analytical balance reading be wrong, if the error is consistent – due to a faulty calibration or some such issue then the results are usable to some degree. However if the readings are inconsistent and vary widely for the same type of weighing object or process then the results are both inconsistent and unusable. As for that pet peeve? Watch the video to find out!