U.S. Air contaminants(29CFR 1910.1000)-Table Z-2 is formulated by the US OSHA to set strict exposure control requirements for substances with special toxicological characteristics. In addition to 8-hour TWA limits, this table specifies acceptable maximum concentrations and the maximum peak concentrations allowed within an 8-hour shift along with their durations. Applicable to high-risk substances such as toluene, hydrogen sulfide, and formaldehyde, it ensures that exposure at any point in time does not exceed legal concentration limits, serving as a critical enforcement basis for US occupational health regulation.

U.S. Occupational Safety and Health Standards-Air contaminants-High-Risk Substance Limits

US OSHA Table Z-2 Air Contaminants Limits Search | 29 CFR 1910.1000 Table Z-2 | US PEL Peak and Ceiling Limits | OSHA Short-Term Exposure Limit Standards | US Occupational Exposure Peak Concentration Search

美國職業安全與健康標準-空氣污染物-高風險物質限量