APPENDIX B1 - Biological Exposure Guidelines (ACGIH BEI and OSHA Expanded Standards Only) TABLE B-1. ADOPTED BIOLOGICAL EXPOSURE INDICES (BEIs) ACGIH (2012) – Sampling Chemical CAS No. Determinant BEI® Notation Time B = Background Ns = Nonspecific Nq = Nonquantitative Sq = Semi-quantitative Acetone 67-64-1 Acetone in urine End of shift 50 mg/L Ns Cholinesterase 70% of Acetylcholinesterase N/A activity in red blood Discretionary individual’s Ns inhibiting pesticides cells baseline Aniline in urine1 End of Nq — Aniline released from End of shift Nq — Aniline 62-53-3 hemoglobin in blood p-Aminophenol in End of shift 50 mg/L B, Ns, Sq urine1 Arsenic, elemental and soluble inorganic Inorganic arsenic plus End of compounds (excludes 7440-38-2 methylated 35 As/L B μg workweek gallium arsenide and metabolites in urine arsine) S-Phenylmercapturic 25 μg/g End of shift B acid in urine creatinine Benzene 71-43-2 t,t-Muconic acid in 500 μg/g End of shift B urine creatinine 1,2 End of shift 2.5 mg/L B, Sq in urine 1,3-Butadiene 106-99-0 Mixture of N-1- and 2.5 pmol/g Not critical Sq Hb valine hemoglobin (Hb) adducts in blood Butoxyacetic acid 200 mg/g 2-Butoxyethanol 111-76-2 End of shift — (BAA) in urine1 creatinine 5 μg/g Cadmium in urine Not critical B Cadmium and inorganic creatinine 7440-43-9 compounds Cadmium in Not critical 5 B μg/L 0.5 mg/g Carbon disulfide 75-15-0 acid End of B, Ns creatinine (TTCA) in urine Carboxyhemoglobin 3.5% of Carbon monoxide 630-08-0 End of shift B, Ns in blood hemoglobin
APPENDIX B1 - Biological Exposure Guidelines (ACGIH BEI and OSHA Expanded Standards Only) TABLE B-1. ADOPTED BIOLOGICAL EXPOSURE INDICES (BEIs) – ACGIH (2012) Chemical CAS No. Determinant Sampling Time BEI® Notation B = Background Ns = Nonspecific Nq = Nonquantitative Sq = Semi-quantitative Acetone 67-64-1 Acetone in urine End of shift 50 mg/L Ns Acetylcholinesterase inhibiting pesticides N/A Cholinesterase activity in red blood cells Discretionary 70% of individual’s baseline Ns Aniline 62-53-3 Aniline in urine1 End of — Nq Aniline released from hemoglobin in blood End of shift — Nq p-Aminophenol in urine1 End of shift 50 mg/L B, Ns, Sq Arsenic, elemental and soluble inorganic compounds (excludes gallium arsenide and arsine) 7440-38-2 Inorganic arsenic plus methylated metabolites in urine End of workweek 35 μg As/L B Benzene 71-43-2 S-Phenylmercapturic acid in urine End of shift 25 μg/g creatinine B t,t-Muconic acid in urine End of shift 500 μg/g creatinine B 1,3-Butadiene 106-99-0 1,2 in urine End of shift 2.5 mg/L B, Sq Mixture of N-1- and valine hemoglobin (Hb) adducts in blood Not critical 2.5 pmol/g Hb Sq 2-Butoxyethanol 111-76-2 Butoxyacetic acid (BAA) in urine1 End of shift 200 mg/g creatinine — Cadmium and inorganic compounds 7440-43-9 Cadmium in urine Not critical 5 μg/g creatinine B Cadmium in Not critical 5 μg/L B Carbon disulfide 75-15-0 acid (TTCA) in urine End of 0.5 mg/g creatinine B, Ns Carbon monoxide 630-08-0 Carboxyhemoglobin in blood End of shift 3.5% of hemoglobin B, Ns
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