TWA: 10 (mg/m3) from ACGIH (TLV) [United States] Inhalation Total. TWA: 10 (mg/m3) [Canada] Inhalation Total. TWA:
5 (mg/m3) from OSHA (PEL) [United States] Inhalation Respirable. TWA: 15 from OSHA (PEL) [United States] Inhalation
Total. TWA: 10 [United Kingdom (UK)] Inhalation Total. TWA: 4 [United Kingdom (UK)] Inhalation Respirable.Consult local
authorities for acceptable exposure limits