CHEMICAL HYGIENE PLAN |
Department of Chemical Engineering |
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1. IntroductionA. PurposeThis Chemical Hygiene Plan describes policies, procedures, equipment, personal protective equipment and work practices that are capable of protecting employees from the health hazards presented by many hazardous chemicals used in laboratories. This Plan is intended to meet the requirements of the federal Occupational Safety and Health Administration (OSHA) standard, Occupational Exposure to Hazardous Chemicals in Laboratories, a copy of which is found in Appendix A. This Chemical Hygiene Plan is intended to safely limit laboratory workers' exposure to OSHA-regulated substances. Laboratory workers must not be exposed to substances in excess of the permissible exposure limits (PEL) specified in OSHA rule 29 CFR 1910, Subpart Z, Toxic and Hazardous Substances. PELs for regulated substances are provided in Appendix B. PELs refer to airborne concentrations of substances and are averaged over an eight hour day. A few substances (listed under Individual Chemical Standard in the Federal Column in Appendix C) also have "action levels". Action levels are air concentrations below the PEL which nevertheless require that certain actions such as medical surveillance and workplace monitoring take place. An employee's workplace exposure to any regulated substance must be monitored if there is reason to believe that the exposure will exceed an action level or a PEL. If exposures to any regulated substance routinely exceed an action level or permissible exposure level there must also be employee medical exposure surveillance. If monitoring is needed to quantify airborne concentrations of any hazardous chemical, call the UMD Environmental Health and Safety Office at 218-726-7139. B. Scope and ApplicationThis standard applies where "laboratory use" of hazardous chemicals occurs. Laboratory use of hazardous chemicals means handling or use of such chemicals in which all of the following conditions are met: i) the handling or use of chemicals occurs on a "laboratory scale", that is, the work involves containers which can easily and safely be manipulated by one person, ii) multiple chemical procedures or chemical substances are used, and iii) protective laboratory practices and equipment are available and in common use to minimize the potential for employee exposures to hazardous chemicals. At a minimum, this definition covers employees (including student employees, technicians, supervisors, lead researchers and physicians) who use chemicals in teaching, research and clinical laboratories at the University of Minnesota. Certain non-traditional laboratory settings may be included under this standard at the option of individual departments within the University. Also, it is the policy of the University that laboratory students, while not legally covered under this standard, will be given training commensurate with the level of hazard associated with their laboratory work. This standard does not apply to laboratories whose function is to produce commercial quantities of material. Also, where the use of hazardous chemicals provides no potential for employee exposure, such as in procedures using chemically impregnated test media and commercially prepared test kits, this standard will not apply. When laboratory work is limited to use of these commercially available kits, a Chemical Hygiene Plan is not required. C. Coordination With Other Standards and GuidelinesAlthough this standard deals only with use of hazardous chemicals, employees may also encounter potential physical, biological or radioactive hazards in the laboratory. Regulations and guidelines for these situations that are in effect at the University of Minnesota are listed in Appendix C. In the unlikely event that there is a conflict between provisions of various standards, the Department of Environmental Health and Safety should be contacted to assist in resolving the discrepancy. D. Responsibilities
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