1. Ostriches develop via blood gas barrier ( BGB ) of their lung tissue is thick. 2. A gas barrier liner to jute bags, is sometimes used to preserve the quality of green coffee. 3. Mineguard?is a spray-applied polyurethane membrane developed for use as a rock support system and radon gas barrier in the mining industry. 4. "' Containment "'involves geomembranes, geosynthetic clay liners, or some geocomposites which function as liquid or gas barriers . 5. Flexible batteries have thin-solar cells which are held inside a flexible gas barrier to prevent them from degrading when exposed to air. 6. No cell should rise above 1.71 V ( dry cell ) or drop below 1.55 V ( gas barrier broken ). 7. Plan 74 may also be considered a double seal piping plan, although it is used exclusively when describing a dry gas barrier seal support system.