lung function tests. Lung function tests, also called pulmonary function tests, measure the size of a person's lungs, how much air can be breathed in and out, how fast air can be breathed out, and how well the person's lungs deliver oxygen to the blood.
Weekly Limit. The maximum number of hours most employees can be required to work in a week is 48 hours. The weekly maximum can be exceeded only if there is a written agreement between the employee and employer and the employer has received the approval of the Director of Employment Standards.
The overtime limits are: 15 hours a week, 27 hours over two weeks, 43 hours over four weeks, 45 hours a month, 81 hours over two months and 120 hours over three months; however, some workers get around these restrictions by working several hours a day without 'clocking in' whether physically or metaphorically.