As part of 3M Fall Protections continued commitment to producing high quality safety and personal protective equipment, we conduct periodic testing of our products. Recent testing of specific DBI-SALA® Delta™ & Exofit XP™ Arc Flash harnesses have returned negative test results on some units. The Arc Flash Standard (ASTM F887) requires that all arc flash rated harnesses be subjected to an Arc Flash followed by a successful dynamic drop test. It should be noted that there is variability in Arc Flash testing of webbing-based products. Although not fully understood, it can stem from several contributing factors including positioning, webbing gap to the test torso, environmental elements, arc path, input energy and other possible sources.