Exercise the necessary precautions when shipping non-flammable gas. Put Labelmaster's Non-Flammable Gas Worded Placards to work. These DOT placards meet the requirements of 49 CFR 172.500 for domestic and international shipments of hazardous materials by highway, rail and water. They also pass IMO's 90-day sea water immersion test (IMDG 5.3.1.1.1). Using UV inks that retard peeling, chipping and fading, they are printed on permanent vinyl that is backed with a high-tactile adhesive that makes them ideal for permanent applications or dedicated equipment. These Hazard Class 2 placards measure 273 x 273mm and are sold in packs of 25.