What type of sling is specifically not suitable near fumes or vapors?

Nylon web slings are not suitable near fumes or vapors due to their susceptibility to chemical degradation when exposed to certain substances. These slings are made from synthetic fibers, which can weaken and lose strength when in contact with chemicals or vapors that might be present in an industrial setting. This degradation could lead to a failure of the sling during use, posing significant safety risks.

In contrast, wire rope slings, chain slings, and steel slings are made from metal and are, therefore, inherently more robust against chemical exposure. Whereas they might still corrode or rust if exposed to certain chemicals without adequate protection, their overall structural integrity is less likely to be compromised dramatically by fumes or vapors. As a result, the selection of nylon web slings in environments with potential chemical exposure should be avoided for safety and reliability reasons.