Are Flashback Arrestors Required By Osha, OSHA - Flashback Arrestors: OSHA 1910. Flashback Arrestor Safety: What the Standards Say In any oxy-fuel gas system, flashback arrestors are not optional—they’re life-saving safety devices. 253 mandates use of flashback arrestors and check valves in many gas welding applications. How can you tell if the torch you are using has flashback arrestors and check valves? Flashback Arrestor Safety: What the Standards Say In any oxy-fuel gas system, flashback arrestors are not optional—they’re life-saving safety devices. 253(e)(3)(ii)(C)(3) Flash-back protection shall be provided by an approved device that will prevent flame from passing into the fuel gas system. ANSI Z49. Hose line flashback arrestors should be considered as an optional accessory installed by the equipment owner and used at his own risk. . Standard Interpretation Flashback Arrestors and Backflow Protective Equipment for Welding Operations. To prevent flashbacks, flashback arrestors must be installed on the outlets of both regulators, and/or torch inlets. 3a18k, r5h8i, xecd6x, p6x, mfjpo, ptylxba, nngda, 4skctlh, rh6n, 8wfrp1k,