Westex by Milliken: There’s a new acronym in the world of PPE, and it has been causing confusion, both among folks new to the subject as well as those long familiar with FR (Flame Resistant) clothing. The letters “AR” stand for Arc Rated, and made their debut in the recent revision of NFPA 70E; the short explanation of the difference is that ALL AR clothing is flame resistant (FR), but not all FR clothing has been Arc Rated.
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