NOTHING ELSE WILL DO WHEN THE
SAFETY • Its housing is sealed tight t o pre vent gases from entering the unit. The n e w flash device measures 4 1 /., by 5 1 / .j inches, weighs only 4.7 pounds, according to the bureau. It fires stand ard midget flash bulbs from any camera equipped for a flash unit, and a photo cell provides for remote control. An other convenience: Photographers can remove bulbs from the unit quickly and safely.
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Literature • American industrial Hygiene Asso ciation, Detroit 27, Mich., has released six new guides to health hazard evalua tion on propylene oxide, tetrahydrofuran, polonium-210, radon and its daughters, selenium, and titanium. Price: 25 cents per guide; 20r/c dis count on five or more.
ETHYL ISOCYANATE PROPYL ISOCYANATE BUTYL ISOCYANATE Chemists' choice for Unambiguous Syntheses of New Drugs & Chemicals available commercially Fill out coupon below for further information.
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1959
SAFER PHOTOGRAPHY. A U. S. Bureau of Mines researcher shows off a new ex plosion-proof flash that fires midget bulbs. Although it was designed for safety in mine photography, the bureau predicts industry will find many occa sions to use the unit to advantage
"Permissible" Photoflash Chemical process industries can make good use of a midget photoflash that is safe for taking pictures in haz ardous areas, reports the U. S. Bureau of Mines. Working with Coal Age magazine, the bureau designed the explosion-proof unit for underground photography—in mines and tunnels where methane might be present. But, it says, the flash will not ignite any gaseous at mosphere. And, this makes it safe for use in the petroleum and natural gas industries, in chemical plants, gas compression stations, and other places where explosive fumes may accumu late. It will prove especially valuable, the bureau believes, in accident in vestigation work. Bureau of Mines officials labeled the midget flash "permissible" or explosionproof after it was thoroughly tested. Two features, they say, ensure its safety: • It initiates light with a very small electrical chair
• Atomic Industrial Forum, N e w York 2 2 , Ν. Y., has published a report, "Sit ing of Nuclear Power Reactors/' which includes discussion and comments on safety considerations. Price: §2.00. • "Designing for S a f e t y / ' a technical bulletin of Autoclave Engineers, Erie, Pa., describes safe practices related to the design and operation of high pres sure vessels. S1 • High pressure carbon d i o x i d e fire extinguishing s y s t e m s for small, hardto-pro tect areas are the subject of a bul letin released by Cardox Division, Chemetron Corp., Chicago, 111. S 2 • Puritan Chemical Co., Atlanta. Ga., has three n e w safety data sheets: "Safety Precautions for Maintenance," SD-595; "Suggested Company Rules for Maintenance Personnel," SD-591; and "Safety Check List for Floor Main tenance," SD-599. S 3 • Rayon ier, N e w York 17, Ν. Y., offers a new safety booklet, "How t o Handle Baling Wire," to the chemicals and paper industries. It includes data the company has gathered during many years of shipping thousands of tons of baled celluloses and pulp. S 4 • "Fred Flame, the Fiery Delinquent'' is a 16-page pamphlet dealing with in dustrial fires published by National Safety Council, Chicago 11, 111. S 5
