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.
I would doubt that any lawyer only works 40 hours a week and some may work around the clock or 80 hours a week. But there's no set time frame that's standard for lawyers. There are way too many variables to give a precise answer.