ACGIH^® Board Ratifies 2023 TLVs^® and BEIs^®

CHEMICAL SUBSTANCES TLVs^®

2023 NOTICE OF INTENDED CHANGES (NIC)
Acetylsalicylic acid
Bensulide
Benzene
Buprofezin
Dimethenamid-P
Endotoxins
Ethylene glycol dimethyl ether
Formic acid
Halothane
Methyl ethyl ketone
Nitric acid
Phenylethyl alcohol
Sevoflurane
tert-Butyl hydroperoxide
Triclosan
Trimetacresyl phosphate
Triparacresyl phosphate

2023 ADOPTIONS
Acetamiprid
Benzoquinone
Di(2-ethylhexyl) phthalate
Divinylbenzene-ethylstyrene mixture
2-Ethyl-1-hexanol
Ethylene glycol dinitrate
Glycidyl methacrylate
Glyphosate
Iodine and iodides
Methylnaphthalene, all isomers
n-Propyl nitrate
Phenothiazine
Propylene glycol dinitrate
Silicon carbide
Tetrachlorvinphos
Vinyltoluene, all isomers

2023 UNDER STUDY LIST
Chemical Substances
Acrolein
Alkyl acrylates
Anisidine
Benzidine
Bifenazate
1-Bromo-3-chloropropane
1,3-Butadiene
Cadmium
Cadmium carbonate
Cadmium hydroxide
Cadmium nitrate
Captafol
Carbon dioxide
Carbon monoxide
Carbon nanotubes
Chlorodiphenyl, 42%
Chlorodiphenyl, 54%
Chloromethyl methyl ether
Cobalt carbonyl, as Co
Cobalt hydrocarbonyl
Copper
Desflurane
Diacetyl
Diazinon
Dicamba
3,3´-Dichlorobenzidine
Diesel exhaust
Difluorodibromomethane
Diiodomethyl p-tolyl sulfone
Diisopropyl ether
Dimethyl carbamoyl chloride
1,4-Dioxane
Enflurane
Epichlorohydrin
Ethyl acrylate
Ethyl ether
Ethylene oxide
Fenoxycarb
Fentanyl
Fluorides
Furan
Furfural
Furfuryl alcohol
Germanium tetrahydride
Hafnium and compounds
Hexane isomers, other than n-hexane
Hydrogen peroxide
2-Hydroxy-4-methoxybenzo-phenone (oxybenzene)
Imidacloprid
Indium and compounds
4-4’isopropylidene diphenol (BPA)
Lead and inorganic compounds, as Pb
Malathion
Manganese cyclopentadienyl tricarbonyl
Methyl acrylate
Methylcyclohexane
2-Methylcyclopentadienyl manganese tricarbonyl
4, 4’-Methylene bis(2-chloroaniline)
Methylene bisphenyl isocyanate
Methyltetrahydrophthalic anhydride isomers
Metribuzin

Molybdenum
Naphthylamine
Naphthylamine (beta)
Nickel and inorganic compounds,
including nickel subsulfide, as Ni
Nitroglycerin
Octachloronaphthalene
Parathion
Pentaborane
Phosphoric acid
Phosphorus (white and yellow)
Phthalic anhydride
m-Phenylenediamine
o-Phenylenediamine
p-Phenylenediamine
Propane sultone
Propylene dichloride (1,2-Dichloropropane)
Sodium hydroxide
Sodium hypochlorite
Sodium silicates
Stoddard solvent
Subtilisins
Talc
Tetraethyl lead
1,2,3,6-Tetrahydrophthalic anhydride
Tetramethyl lead
Tin, organic compounds
Tolclofos-methyl
Trichloronaphthalene
Triclopyr
Triethanolamine
Trifloxystrobin
Trimellitic anhydride
Trimethylolpropane
Uranium and compounds
Vinylidene chloride
Vinylidene fluoride
Welding fumes

PHYSICAL AGENTS TLVs^®
2023 NOTICE OF INTENDED CHANGES (NIC)
Infrasound and low-frequency sound
Whole-body vibration

2023 Notice of Intent to Establish (NIE)
Above shoulder work

2023 ADOPTIONS
Heat stress and strain
Upper limb localized fatigue

2023 UNDER STUDY LIST

Acoustic

• Audible sound

Optical Radiation

• Lasers
• Light and Near-infrared radiation
• Non-Laser Optical Radiation
• Ultraviolet Radiation

Ergonomics

• Hand Activity
• Hand-Arm Vibration
• Lifting and Carrying
• Push/Pull

Ionizing Radiation

Thermal Stress

• Cold stress

Other Issues Under Study

• Appendix B: Personal Physiologic Monitoring in the Workplace
• Appendix C: Statement on Fatigue and its Management in the Workplace
• Generalized Fatigue and Work Schedules
• Head supported mass and neck loading
• Hyperbaric pressure
• Hypobaric pressure
• Sensory-induced motion sickness

BIOLOGICAL EXPOSURE INDICES (BEIs^®)
2023 NOTICE OF INTENDED CHANGES (NIC)
Platinum
Arsenic (and soluble inorganic compounds)
Xylenes (technical or commercial grades)

2023 ADOPTIONS
Acrylamide
N,N-Dimethylacetamide
2-Ethoxyethanol and 2-Ethoxyethyl acetate
Furfural
Styrene

2023 UNDER STUDY LIST
Chemical Substances
Acrylonitrile
Adipates
Aluminum
Antimony
Atrazine
Benzene
Bisphenol-A
1,3-Butadiene
Copper and its organic compounds
Dibutyl phthalate
Di(2-ethylhexyl)phthalate (DEHP)
Ethylbenzene
Formic acid
Glyphosate
n-Heptane
Iodine
Methyl ethyl ketone
Nicotine
Trimethyl benzene

Feasibility Assessments
Acrylonitrile
Alachlor
Aluminum
Antimony
Beryllium
1-Bromopropane
Chlorpyrifos
1,4-Dichlorobenzene
3,3’-Dichlorobenzidine
2,4-Dichlorophenoxyacetic acid
Diethanolamine
Diethylhydroxylamine
2-Ethyl hexanoic acid
Ethylene glycol
Hydrazine
Inorganic borates
Manganese
Methyl tert-butyl ether
Methyl n-butyl ketone
Methylcyclohexane
Methyl formate
Methyl isobutyl carbinol
α-Methylstyrene
Nitrobenzene
Perfluorooctanoic acid
Selenium
Styrene oxide
Thallium
Trimethylbenzene
Vanadium pentoxide
Vinyl chloride