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4. §CFR 1910.1048: Hazardous substances. Formaldehyde. Occupational Safety and Health Administration. https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_id=10075&p_table=STANDARDS. Accessed May 8, 2015.
5. OSHA Fact Sheet: Formaldehyde. 2011. Occupational Safety and Health Administration. https://www.osha.gov/OshDoc/data_General_Facts/formaldehyde-factsheet.pdf. Accessed May 8, 2015.