Occunomix Flame Resistant Safety Vests, Coveralls, T-Shirts, Sweatshirts, Winter Hardhat Liners and Welding Gear. OccuNomix is committed to setting the highest standards for safety and quality. With the recent release of the ANSI/ISEA 107-2010 standard, products must now pass certain mandatory tests to be considered Flame Resistant (FR).