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MAP20071027179Derocher, RobertDifferent signs for different times : as the work force changes, so should your warning signs / by Robert DerocherSumario: New technology, a multicultural population, illiteracy and a generation of workers whose signs are a few reasons why many people have proposed changes to ANSI warning-sign standards. The changes would affect ANSI'sZ535.2: Environmental Facility and Safety Signs standard which spells out the style, size and shape of hazard signs in the workplace. According to Brewster, the Z535 committee has approved a set of reommended changes; full ANSI approval is expected this spring. The proposed changes might seem subtle to some. It is time for hazard signs and warnings to enter the 21st centuryEn: Safety & health. - Chicago. - Vol. 155, nº 3 March 1997 ; p. 48-511. Seguridad e higiene en el trabajo. 2. Riesgo laboral. 3. Señalización. 4. Nuevas tecnologías. 5. Prevención de accidentes. I. Título. II. Título: Safety & health.