... fumes, lead poisoning, carbon-monoxide, tetryl, mercury, chromium, silica, cyanide and various solvents. All possible protective devices and equipment were in use and the safety program included periodic examinations of personnel working with ...

... the carbon dioxide and water lost by the silica gel as the dry, carbon dioxide-free air passes over it. The last tube is a safety tube used to prevent the absorption of moisture ...

... the carbon dioxide and water lost by the silica gel as the dry, carbon dioxide-free air passes over it. The last tube is a safety tube used to prevent the absorption of moisture ...

... this report for reducing worker exposure to crystalline silica, mineral wool fibers, and coal tar pitch volatiles.” For further information, contact National Institute for Occupational Safety & Health, Publications Dissemination, 4676 Columbia Pakrway, Cincinnati, Ohio ...

... maximum concentration that may be toler- ated with safety. The brick plant workers are exposed to dusts, the quartz (or free silica) content of which varies from 10 to 25% ( ...

... Term Effects of Combined Injury to Animals of Silicon Dioxide and Radon. ... Health and Safety in Mining and Milling of Nuclear Materials. Vienna, ...

... plant, since the raw materials employed were free silica, fluorspar, and sul- furic acid. 35 There was also a potential silicosis hazard in the brick manufacturing plant. This smelter contained many hazards to safety and health. The only exhaust ventilation installations observed ...

... siege of Paris various substances, such as precipitated silica, kaolin, tripoli, precipitated alumina, sugar, and the ash of Boghead coal, were more or less successfully employed as substitutes for it. The great efficiency and general safety of No. 1 dynamite as an explosive agent ...

... CRITERIA DOCUMENTS The National Institute for Occupa- tional Safety and Health (NIOSH) recently transmitted to OSHA cri- teria documents covering worker ex- posure to cotton dust, chloroform and silica. OSHA considers NIOSH criteria documents as a basis ...

... 15, Potash Sulphate; 16, Peroxide of Iron; 17, Silica. SEVENTH SECTION ONE-FOOD MEALS S WE PROGRESS in the work of unfolding the vital laws of life, we drift gradually to that shore where alone the secret of safety can be found. It is not disputed that ...