BACK TO CATEGORIES Photo ID: 1470 (Click photo to view original size.) Category: Construction Hazard: Struck-by a compressed gas cylinder/projectile. Standard Violated: 29CFR1926.350(a)(2) [29CFR1926.350(a)(9)] Corrective Action: Place and secure the gas cylinders on a pallet in an upright position. Description: A lift truck was attempting to lift several unsecured gas cylinders to the second floor of a construction site.