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nnovctive onstruction olutions Chemical Name* Other Pertinent Limits* I Physical I (or class) TWA (Specify) Properties I Exposure Routes Symptoms Target Organs 100 Not established Clearyellow, Inhalation, Irritation of eyes, skin, mg/m3 brown ingestion, skin y Skin, kidneys, liver, eyes TPHA combustible and/oreye respiratorytract; dizziness, l liquid; floats on contact headache, nausea; chemical water, distinct pneumonitis (from aspiration of i liquid ); dry, red skin; irritant diesel petroleum i contact dermatitis; eye redness, hydrocarbon odor pain ( I i i TWA = OSHA Time Weighted Average permissible exposure limit; represents the maximum allowable 8-hr. time weighted average (TWA) exposure concentration. C = OSHA ceiling concentration must not be exceeded during any part of the workday; if instantaneous monitoring is not feasible, the ceiling must be assessed as a 15-minute TWA exposure. STEL = OSHA Short-term Exposure Limit; represents the maximum allowable 15-minute TWA exposure concentration. TLV-STEL = ACGIH Short-term Exposure Limit; represents the maximum recommended 15-minute TWA exposure concentration . C = OSHA Ceiling Limit; represents the maximum exposure concentration above which an employee shall not be exposed during any period without respiratory protection . IDLH = Immediately Dangerous to Life and Health; represents the concentration at which one could be exposed for 30 minutes without experiencing escape-impairing or irreversible health effects. ( ) = ACGIH TLV Intended Change (SKIN] = Indicates a significant contribution of the total exposure by the cutaneous route. Warning = Represents the lowest concentration detectable in a given population . However, detection varies greatly with the individual. REL = NIOSH Recommended Exposure Limit, based on a TWA exposure REL = NIOSH Recommended Exposure Limit, based on a 10-hour TWA exposure PEL = OSHA Permissible Exposure Limit, based on a 8-hour TWA exposure t: ``, 44