Methylene Chloride

Evaluating Exposure

Monitoring employee exposures to methylene chloride enables employers to identify the sources of methylene chloride and select appropriate exposure controls. OSHA's methylene chloride standard requires that all facilities using methylene chloride monitor employee exposures. The following references aid in evaluating methylene chloride exposures in the workplace.

  • Methylene Chloride. OSHA Publication 3144, (2003). Provides general information regarding methylene chloride exposure limit information, control measures, and other OSHA assistance information.
  • Methylene Chloride Facts No. 1 - Exposure Monitoring Requirements. OSHA, (1998). Provides only general information on monitoring requirements and should not be considered to be a complete summary of the methylene chloride related monitoring requirements.
  • OSHA Occupational Chemical Database. OSHA's premier one-stop shop for occupational chemical information. It compiles information from several government agencies and organizations. Information available on the pages includes chemical identification and physical properties, exposure limits, sampling information, and additional resources.
Analytical Methods


OSHA has developed and validated methods for use by the Salt Lake Technical Center (SLTC) laboratory. The following method has been adopted by many laboratories for the analysis of chemical compounds. Exposures should be evaluated with standard total dust sampling techniques for comparison to the OSHA permissible exposure limits (PEL).