Interior Design Professional Practice Exam

The new office complex had their renovations just over a year before. They have recently moved desks around to accommodate new workers. They have now discovered the carpeting has greatly faded near the windows. When the carpet was specified the design firm didn’t bother to look at the Fade Resistance Test. The Design firm should have required that tests be performed to determine colorfastness under certain conditions. Choose one of those conditions below that should have been done to have prevented this problem.