Material Safety Data Sheet
1,2,4-Trimethyl benzene ACGIH TWA 25 ppm Benzene SHELL IS TWA (8 h) 0.5 ppm 1.6 mg/m3 SHELL IS STEL 2.5 ppm 8 mg/m3 ACGIH SKIN_DES Can be absorbed through the skin. ACGIH STEL 2.5 ppm ACGIH TWA 0.5 ppm OSHA ACTION 0.5 ppm OSHA TWA 1 ppm OSHA STEL 5 ppm OSHA Z2 MAX. CONC 50 ppm OSHA Z2 TWA 10 ppm
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