Which type of sling is permitted in environments with caustic vapors?

Metal mesh slings are the appropriate choice for environments with caustic vapors due to their durability and resistance to chemical degradation. Unlike fabric slings, which can be compromised by exposure to harsh chemicals, metal mesh slings do not absorb chemicals and are less likely to wear down or fail in such environments. Their robust construction allows them to maintain their integrity when subjected to corrosive substances, making them a safe option for lifting and transporting materials in these conditions.

In contrast, polyester and nylon web slings are susceptible to damage from certain chemicals, particularly caustics, which can weaken the materials over time and lead to failure. Natural fiber slings, while strong, can also be adversely affected by moisture and chemicals, as they can rot or degrade. Hence, metal mesh slings are a more reliable choice for ensuring safety when working near caustic vapors.