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Occupational Safety & Health Administration settles Building and Construction Trades Department challenge to hexavalent chromium standard
chromium standard occupational safety
2007/4/25
April 19, 2007，WASHINGTON -- The U.S. Department of Labor’s Occupational Safety and Health Administration (OSHA) signed an agreement April 6, 2007, with the Building Construction Trades Department (BC...
national electrical manufacturers association Publishes ANSI Z535.1-2006, American National Standard for Safety Colors
Safety Colors engineering safety alerting system
2007/3/8
21 Feb 2007，(ROSSLYN, VA)—The National Electrical Manufacturers Association (NEMA) has published ANSI Z535.1-2006, American National Standard for Safety Colors. This standard sets forth the technical ...