SVG NIOSH Pocket Guide to Chemical Hazards Information on workplace chemicals and their hazards. SVG NIOSH Manual of Analytical Methods Collection of sampling and analytical methods for workplace exposure monitoring. SVG North American Industry Classification System Standard used by Federal statistical agencies in classifying business establishments. SVG Nationally Recognized Testing Laboratory Recognizes private sector organizations to perform certification for certain products SVG Chemical Database Provides an occupational chemical database and information. SVG Chemical Exposure Health Data Chemical exposure health data. SVG OSHA Technical Manual Provides technical information on workplace hazards and controls. SVG Bureau of Labor Statistics Provides the National TRC and DART rates. SVG North Carolina Rates Provides the NC TRC and Dart rates.