Substances and Agents Listing

ACGIH® BOARD RATIFIES 2018 TLVs® and BEIs®

2018 TLVs® and BEIs®
Substances and Agents Listing


CHEMICAL SUBSTANCES TLVs®

2018 NOTICE OF INTENDED CHANGES (NIC)
Introduction to the Chemical Substances
     – Threshold Limit Value-Surface 
     Limit
(TLV-SL)
New notation – OTO (Ototoxicant)
Antimony trioxide (withdrawn from
     Notice of Intended Changes)
Cobalt and inorganic compounds, 
     as Co
Cumene
Cyanazine
Cyclopentadiene (withdraw adopted TLV®
     and Documentation; see
     Dicyclopentadiene, including 
     Cyclopentadiene)
Dicyclopentadiene, including 
     Cyclopentadiene
Dimethylphenol, all isomers
Fluorine, as F
Indium tin oxide, as In
Iodine and Iodides, as I
Iodoform
Methyltetrahydrophthalic anhydride 
     isomers
Methyl vinyl ketone
Monomethylformamide
o-Phthalaldehyde
Propylene glycol ethyl ether
Sodium sulfate
Styrene
Styrene oxide
Sulfoxaflor
Tetramethyl succinonitrile
Thiacloprid
Tin and inorganic compounds, excluding 
     Tin hydride, as Sn
Trimetacresyl phosphate 
Triparacresyl phosphate 

2018 NOTICE OF INTENDED CHANGES (NIC) – THE FOLLOWING SUBSTANCES ARE PLACED ON THE NIC FOR REVIEW OF THE INHALABLE FRACTION AND VAPOR (IFV) ENDNOTE ONLY
Chlordane
o-Chlorobenzylidene malononitrile
Dinitrobenzene, all isomers
Dinitro-o-cresol
EPN
Isobutyl nitrite
4,4′-Methylene bis(2-chloroaniline) 
Nitrapyrin
5-Nitro-o-toluidine
Pentachloronaphthalene
Sulfometuron methyl
Temephos
1,1,2,2-Tetrabromoethane
2,4,6-Trinitrotoluene
m-Xylene α,α′-diamine

2018 ADOPTIONS 
Aldicarb
Allyl methacrylate
Bendiocarb
Boron trifluoride ethers, as BF3
tert-Butyl hydroperoxide
Calcium chromate, as Cr (adopted TLV®
     and Documentation withdrawn; see
     Chromium and inorganic compounds)
Carfentrazone-ethyl
Chlorine
Chlorine dioxide
Chromite ore processing (Chromate),
     as Cr (line entry from the TLVs® and
     BEIs®
book withdrawn; see Chromium
     and inorganic compounds)
Chromium and inorganic compounds
Chromyl chloride (adopted TLV® and
     Documentation withdrawn; see
     Chromium and inorganic compounds)
Cyanoacrylates, Ethyl and Methyl
Dimethylacetamide
Dimethylformamide
Ethyl cyanoacrylate (adopted TLV® and
     Documentation withdrawn; see
     Cyanoacrylates, Ethyl and Methyl)
Fludioxonil
Isopropyl acetate (adopted TLVs® and
     Documentation withdrawn; see 
     Propyl acetate isomers)
Lead chromate
Methane (see Appendix F: Minimal
     Oxygen Content)
Methyl 2-cyanoacrylate (adopted
     TLV® and Documentation
     withdrawn; see Cyanoacrylates,
     Ethyl and Methyl)
Natural gas (see Appendix F: Minimal
     Oxygen Content)
Paraquat, as the cation
Phosphine
n-Propyl acetate (adopted TLVs®
     and Documentation withdrawn; see
     Propyl acetate isomers)
Propyl acetate isomers
Strontium chromate, as Cr (adopted
     TLV® and Documentation withdrawn; see
     Chromium and inorganic compounds)
Thioglycolic acid and salts
Zinc chromates, as Cr (adopted TLV®
     and Documentation withdrawn; see
     Chromium and inorganic compounds)

2018 UNDER STUDY LIST
Chemical Substances
Acrylamide
Alkyl acrylates
Aluminum sodium dioxide
Antimony and compounds
Antimony hydride
Antimony trioxide
Benzene
Benzidine
Bifenazate
Bromodichloromethane
Buprofezin
1,3-Butadiene
4-tert-Butylbenzoic acid
n-Butyl isocyanate
Carbon dioxide
Carbon monoxide
Carbon nanotubes
Catechol
Chlorodiphenyl, 42% Cl
Chlorodiphenyl, 54% Cl
Chloromethyl methyl ether
Cobalt carbonyl
Cobalt hydrocarbonyl
Copper
Cyclohexene
Cyromazine
Diazinon
3,3′-Dichlorobenzidine
1,3-Dichloro-5,5-dimethyl hydantoin
1,1-Dichloro-1-nitroethane
1,2-Dichloropropane
Dicyclopentadienyl iron
Diesel exhaust
Di(2-ethylhexyl)phthalate
Difluorodibromomethane
Diiodomethyl p-tolyl sulfone
1,2-Dimethoxyethane
4,4-Dimethyloxazolidine
Epichlorohydrin
Ethyl acrylate
Ethyl ether
Ethylbenzene
Ethylene glycol dinitrate
Ethylene oxide
Fluorides
Formamide
Furan
Furfural
Furfuryl alcohol
Germanium tetrahydride
Glyphosate
Hafnium and compounds
Halothane
Hexachloronaphthalene
Hexamethylenetetramine
Hexazinone
sec-Hexyl acetate
Imidacloprid
Indium and compounds
Isoflurane
Isopropylamine
Ketene
Lead and inorganic compounds
Lindane
Malathion

Manganese cyclopentadienyl tricarbonyl
2-Methoxymethylethoxy propanol
Methyl acrylate
Methyl isobutyl carbinol
Methyl n-butyl ketone
o-Methylcyclohexanone
2-Methylcyclopentadienyl manganese
     tricarbonyl
Methylene bispehnyl isocyanate
Metribuzin
Mica
1-Naphthylamine
2-Naphthylamine
Nickel and inorganic compounds, including
     Nickel subsulfide
Nitric acid
Nitroglycerin
Octachloronaphthalene
Parathion
Pentaborane
2,3-Pentanedione
Perchloryl fluoride
Phenothiazine
Phosgene
Phosphoric acid
Phosphorus (white)
Phosphorus (yellow)
Polycyclic aromatic hydrocarbons
Prometon
Prometryn
Propane sultone
n-Propyl nitrate
Propylene glycol dinitrate
Quinone
Resin acids from rosin based solder
Rosin core solder thermal decomposition
     products (colophony)
Silicic acid
Silicon carbide
Sodium hypochlorite
Stoddard solvent
Sulfur pentafluoride
Sulfur trioxide
Tetrachlorophthalic anhydride
Tetrachlorvinphos
Tetraethyl lead
1,2,3,6-Tetrahydrophthalic anhydride
Tetramethyl lead
Thiodicarb
Tin, organic compounds
Titanium dioxide
Titanium tetrachloride
Toluene
o-Toluidine
Trichloronaphthalene
Triclopyr
Triclosan
Triethanolamine
Trifloxystrobin
Triflumizole
Trimethylbenzene (mixed isomers)
Trimethyl phosphite
Uranium and compounds
Vinylidene chloride
Vinylidene fluoride
Xylene

PHYSICAL AGENTS TLVs®
2018 NOTICE OF INTENDED CHANGES (NIC)
Introduction to the Physical Agents
Ergonomics

Appendix A: Statement on the Occupational
     Health Aspects of New Lighting Technologies
     — Circadian, Neuroendocrine and
     Neurobehavioral Effects of Light

2018 ADOPTIONS
Acoustic

  • Audible sound

Ergonomics

  • Hand activity

Thermal Stress

  • Cold stress

2018 UNDER STUDY LIST

  1. Acoustic
    • Audible sound
    • Infrasound and Low-frequency sound
  2. Optical Radiation
    • Lasers
    • Light and Near-infrared radiation
    • Ultraviolet radiation
  3. Ergonomics
    • Lifting
    • Hand–arm vibration
    • Whole-body vibration
    • Whole-body vibration (including multiple shock and low-frequency sound)
  4. Thermal Stress
    • Cold stress
    • Heat stress and strain

Other Issues Under Study

  1. Generalized fatigue and work schedules
  2. Hypobaric pressure
  3. Introduction to the Physical Agents Documentation
  4. Personal physiologic monitoring
  5. Sensory induced motion sickness

BIOLOGICAL EXPOSURE INDICES (BEIs®)
2018 NOTICE OF INTENDED CHANGES (NIC)
Introduction to the BEI® Documentation
Ethylene oxide
N-Ethyl-2-pyrrolidone
n-Hexane
Methyl n-butyl ketone (withdraw adopted BEI®
     and Documentation)

2018 ADOPTIONS
Introduction to the Biological Exposure Indices
Cholinesterase inhibiting pesticides

2018 UNDER STUDY LIST
Chemical Substances
Acrylamide
Adipates
Aniline
Arsenic
Benzene
Bisphenol A
Chromium
3,3′-Dichlorobenzidine
Di(2-ethylhexyl)phthalate
Ethylene glycol
Furfural
Indium
Iodine
Methyl chloroform
Methyl isobutyl carbinol
Nickel
Parathion
Phthalates
Styrene
Styrene oxide

Feasibility Assessments
Acrylonitrile
Alachlor
Aluminum
Antimony
Beryllium
1-Bromopropane
Chlorpyrifos
1,4-Dichlorobenzene
2,4-Dichlorophenoxyacetic acid
Diethanolamine
2-Ethyl hexanoic acid
Hydrazines
Inorganic borates
Manganese
Methyl tert-butyl ether
Methyl n-butyl ketone
Methyl formate
α-Methylstyrene
Nickel
Nitrobenzene
Perfluorooctanoic acid
Selenium
Thallium
Trimethylbenzene
Vanadium pentoxide
Vinyl chloride


Malathion
Manganese cyclopentadienyl tricarbonyl
2-Methoxymethylethoxy propanol
Methyl acrylate