What is the maximum temperature (in degrees Fahrenheit) of pipes for which global removal is allowed?

What is the maximum temperature (in degrees Fahrenheit) of pipes for which global removal is allowed?

• A. 120
• B. 150
• C. 180
• D. 200

Answer: (B)

When deciding how to remove asbestos-containing pipe insulation, heat level matters because it affects how easily fibers can become airborne and how safely you can handle the material. If the pipe surface is at or below 150°F, the insulation is generally stable enough to be removed in one piece under proper containment—this is called a global removal. The temperature is not high enough to soften the binding or make fibers release more readily, and workers can manage the material without excessive risk of burns or dust escapes. Once the pipe is hotter than 150°F, the insulation and its binder may soften and become more friable, increasing the chance of fiber release during removal and complicating containment and worker safety. For that reason, global removal is not allowed at higher temperatures, and alternative methods or cooling are required. So the maximum temperature at which global removal is allowed is 150°F.

When deciding how to remove asbestos-containing pipe insulation, heat level matters because it affects how easily fibers can become airborne and how safely you can handle the material. If the pipe surface is at or below 150°F, the insulation is generally stable enough to be removed in one piece under proper containment—this is called a global removal. The temperature is not high enough to soften the binding or make fibers release more readily, and workers can manage the material without excessive risk of burns or dust escapes. Once the pipe is hotter than 150°F, the insulation and its binder may soften and become more friable, increasing the chance of fiber release during removal and complicating containment and worker safety. For that reason, global removal is not allowed at higher temperatures, and alternative methods or cooling are required. So the maximum temperature at which global removal is allowed is 150°F.