The following references provide information about the evaluation of occupational exposures to styrene.

• Styrene. OSHA Chemical Sampling Information, (1999, January 14). Presents data on styrene. Useful as a basic reference for industrial hygienists engaged in OSHA field activity.
• International Chemical Safety Cards: Styrene. National Institute for Occupational Safety and Health (NIOSH), (2002). Summarizes essential health and safety information on styrene for use at the "shop floor" level by workers and employers.
• Occupational Health Guideline for Styrene. US Department of Health and Human Services (DHHS), National Institute for Occupational Safety and Health (NIOSH) Publication No. 81-123, (1978, September), 230 KB PDF, 5 pages. Describes exposure limits, health hazards, chemical and physical properties, monitoring and measuring procedures, and personal protective equipment for styrene.
• Kolstad, HA, J. Sonderskoy, and I. Burstyn. "Company-Level, Semi-Quantitative Assessment of Occupational Styrene Exposure when Individual Data are not Available Semi-Quantitative Assessment of Occupational Styrene Exposure when Individual Data are not Available." Annals of Occupational Hygiene 49(2005, January 7): 155-165.
• Liljelind, I, et al. "Exposure assessment of monoterpenes and styrene: a comparison of air sampling and biomonitoring." Occupational Environmental Medicine 60.8(2003, August): 599-603. Presents some interesting findings on between and within worker styrene exposure measurement variability among sawmill workers and reinforced plastics workers, using both personal air samplers and biological monitoring. The results suggest, "personal air samplers provide data with similar or superior quality to urinary metabolites as measures of exposure to these monoterpenes in sawmills and styrene in reinforced plastics factories."

• OSHA has developed and validated methods for use by the Salt Lake Technical Center Laboratory. The following standard methods have been adopted by many laboratories for the analysis of chemical compounds.
  • Styrene. Analytical Method 89, (1991, July). 
  • Styrene. Analytical Method 9, (1980, February). This method has been superceded by Method 89.
• Hydrocarbons, Aromatic. National Institute for Occupational Safety and Health (NIOSH) Method 1501, (1994, August 15), 40 KB PDF, 7 pages. Provides a method for peak, ceiling, and time weighted average determinations of aromatic hydrocarbons.
• Determination of Styrene in Latex Styrene-Butadiene Rubber, Through Gas Chromatography. Environmental Protection Agency (EPA) Method 312A, (1997, March 17), 49 KB PDF, 5 pages. Describes a procedure for determining parts per million (ppm) styrene monomer (CAS No. 100-42-5) in aqueous samples, including latex samples and styrene stripper water.
• Determination of Residual Styrene in Styrene-Butadiene (SBR) Rubber Latex by Capillary Gas Chromatography. Environmental Protection Agency (EPA) Method 312B, (1997, March 17), 22 KB PDF, 7 pages. Applicable to SBR latex solutions and quantitatively determines residual styrene concentrations in SBR latex solutions at levels from 80 to 1200 parts per million (ppm).
• Determination of Residual Styrene in SBR Latex Produced by Emulsion Polymerization. Environmental Protection Agency (EPA) Method 312C, (1997, March 17), 33 KB PDF, 8 pages. Applicable for determining the amount of residual styrene in styrene-butadiene (SBR) rubber latex as produced in the emulsion polymerization process.