The price of the device has been steadily increasedâby 32 percent in the past year aloneâbut not because the cost of the raw materials was increasing (a typical dose of epinephrine still costs about a dollar). The profit margin of the EpiPen was 9 percent in 2008. Today itâs 55 percent.
Frost is a form of ice and can only survive at temperatures of 32 degrees Fahrenheit and below. But that doesnât mean the measured air temperature must be 32 or below for frost to form on a surface.
Typically, the frost line is the depth to which ice or frost penetrates the ground. The frost depth is determined by a variety of factors including the temperature, the length of time the air temperature remains below freezing, and the level of moisture in the ground.or instance, 1  In the United States, there is no frost line set for Florida, but it can be as deep as 60 inches (152.4 cm) in some northern sections of the lower 48 states. 2  In Minnesota, the maximum is 60 inches in the northern counties, but in southern counties; the depth of the frost only reaches 40 inches (101.6 cm).