Piper belle

Betel oil is distilled from the leaves, either fresh or dried, of Piper belle (ClhavKii betU Miq.). The vield is from 5 lo 1 per oeiil., but il the leaves are bleached by being kept io a warm shady place, the yield may reach 4 per cent. The oil varies considerably in characters ac-cordiDfr to the nature of the raw material, and the lollowing lesults have been oblaioeil by various Invealigatora. —... 

The areca nut or betel nut is the fruit of Areca catechu L., a palm tree of the far East. The nut is consumed in large quantities by the natives. Adams (74) describes a limestone quarry at Getembe, near Kandy, Ceylon, from which the quarried stone is burnt and the resulting quicklime when slaked is all sold to the Singhalese to mix with ground areca nuts. The mixture is wrapped in betel leaves Piper belle L.) and chewed by the natives. 

Anon. (1979) Piper Aircraft Corporation, Vero Beach, Florida (Health Hazard Evaluation Report No. 78-110-585), Cincinnati, OH, National Institute for Occupational Safety and Health Anon. (1980) Bell Helmets, Inc., Norwalk California (Health Hazard Evaluation Report No. 79-... 

Especially critical in fire pump installations from open bodies of water is the activity of underwater diver operations in close proximity of the underwater fire pump suction bell or opening. Underwater diving operations routinely occur at the structural support (i.e., the jacket) for offshore installations for corrosion monitoring, modifications, inspections, etc. The high water current at the intake to the submerged pump poses a safety hazard to divers as they may be pulled into this intake. During the operation of the ill fated Piper Alpha platform it was common practice to switch the fire pump to manual startup mode (requiring an individual... 

---