Why are triple-gloves recommended for spill response?
The US Coast Guard, EPA, NIOSH, and OSHA document Occupational Safety and Health Guidance Manual for Hazardous Waste Site Activities recommends inner and outer chemical protective gloves for Level A (full encapsulating, vapor-tight protection) and Level B (high level protection, which is not vapor-tight) protection. In practice, a pair of lightweight inner liners, made of an impervious material such as nitrile or latex, is typically worn under the inner chemical protective gloves. This pair of inner gloves is the last piece of protective equipment removed, prior to exit from the Decontamination Corridor. They are considered part of the inner clothing, which is not expected to become contaminated.
