Criteria for a Recommended Standard. Occupational Exposure to Carbon Dioxide.

摘要

The recommended standards include an exposure limit of 10,000ppm (1%) as a time-weighted average concentration for up to a 10-hour work shift in a 40-hour work week,with a ceiling concentration of 30,000ppm (3%) for 10minutes. Provisions are included for sampling,collection,analysis,pre-employment medical examinations,periodic medical examinations,first-aid,medical records,labeling and posting,respiratory protection and respiratory requirements,informing employees,emergency procedures involving carbon dioxide,work practices in confined spaces,ventilation systems requirements,requirements for cylinders and bulk storage vessels containing liquid carbon dioxide and monitoring and recordkeeping requirements. Criteria include the purpose of the standards,biologic effects of exposure (including the extent of exposure,historical reports,physiologic considerations,effects on humans,epidemiologic study,animal toxicity,correlation of exposure and effects,carcinogenicity,mutagenicity and reproductive effects,basis for previous standards and for the present recommended standards,compatibility with others standards and research needs.