Substances and Agents Listing

ACGIH® BOARD RATIFIES 2019 TLVs® and BEIs®

2019 TLVs® and BEIs®
Substances and Agents Listing


CHEMICAL SUBSTANCES TLVs®

2019 NOTICE OF INTENDED CHANGES (NIC)
Acrylamide
Antimony trioxide 
4-tert-Butylbenzoic acid
Cumene
Cyclohexene
Di(2-ethylhexyl) phthalate
Formamide
Hexamethylenetetramine
Hexazinone
Iodine and Iodides, as I (withdrawn
     from Notice of Intended Changes)
Iodoform
Isoflurane
Methyl isobutyl carbinol
Resin acids, as total Resin acids
Rosin core solder thermal
     decomposition products
     (colophony) (withdraw adopted
     TLV® and Documentation; see
     Resin acids)
Sodium sulfate (withdrawn from
     Notice of Intended Changes)
Styrene
Styrene oxide
Sulfur pentafluoride
Thiodicarb
Titanium tetrachloride, as HCl
Trimetacresyl phosphate
Triparacresyl phosphate 

2019 ADOPTIONS 
Introduction to the Chemical Substances 
     – Threshold Limit Value-Surface  
     Limit
 (TLV-SL)
New notation – OTO (Ototoxicant
Cobalt and inorganic compounds, as Co
Cyanazine
Cyclopentadiene (adopted TLV® and
     Documentation withdrawn; see
     Dicyclopentadiene, including
     Cyclopentadiene)
Dicyclopentadiene, including 
     Cyclopentadiene
Dimethylphenol, all isomers
Fluorine, as F
Indium tin oxide, as In
Methyltetrahydrophthalic anhydride 
     isomers
Methyl vinyl ketone
Monomethylformamide
o-Phthalaldehyde
Propylene glycol ethyl ether
Sulfoxaflor
Tetramethyl succinonitrile
Thiacloprid
Tin and inorganic compounds, excluding 
     Tin hydride and Indium tin oxide, 
     as Sn 

2019 ADOPTIONS – THE FOLLOWING SUBSTANCES PLACED ON THE 2018 NIC FOR REVIEW OF THE INHALABLE FRACTION AND VAPOR (IFV) ENDNOTE ONLY ARE ADOPTED
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 

2019 UNDER STUDY LIST
Chemical Substances
Alkyl acrylates
Aluminum sodium dioxide
Antimony and compounds
Antimony hydride
Benzene
Benzidine
Bifenazate
Buprofezin
1,3-Butadiene
n-Butyl isocyanate
Carbon dioxide
Carbon monoxide
Carbon nanotubes
Catechol
Chlorodiphenyl, 42%
Chlorodiphenyl, 54%
Chloromethyl methyl ether
Cobalt carbonyl
Cobalt hydrocarbonyl
Copper
Cyromazine
Diazinon
Dicamba
3,3′-Dichlorobenzidine
1,3-Dichloro-5,5-dimethyl hydantoin
1,1-Dichloro-1-nitroethane
1,2-Dichloropropane
Diesel exhaust
Difluorodibromomethane
Diiodomethyl p-tolyl sulfone
1,2-Dimethoxyethane
4,4-Dimethyloxazolidine
Enflurane
Epichlorohydrin
Ethyl acrylate
Ethyl benzene
Ethyl ether
Ethylene glycol dinitrate
Fluorides
Furan
Furfural
Furfuryl alcohol
Germanium tetrahydride
Glyphosate
Hafnium and compounds
Halothane
Hexachloronaphthalene
sec-Hexyl acetate
Imazosulfuron
Imidacloprid
Indium and compounds
Iodine and Iodides
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 bisphenyl 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 (red)
Phosphorus (white)
Phosphorus (yellow)
Polycyclic aromatic hydrocarbons
Prometon
Prometryn
Propane sultone
n-Propyl nitrate
Propylene glycol dinitrate
Quinone
Sevoflurane
Silicic acid
Silicon carbide
Sodium hypochlorite
Sodium sulfate
Stoddard solvent
Subtilisins
Sulfur trioxide
Talc
Tetrachlorophthalic anhydride
Tetrachlorvinphos
Tetraethyl lead
1,2,3,6-Tetrahydrophthalic anhydride
Tetramethyl lead
Tin, organic compounds
Titanium dioxide
Toluene
o-Toluidine
Trichlorfon
Trichloronaphthalene
Triclopyr
Triclosan
Triethanolamine
Trifloxystrobin
Triflumizole
Trimethyl phosphite
Trimethylbenzene mixed isomers
Uranium and compounds
Vinylidene chloride
Vinylidene fluoride
Xylene

PHYSICAL AGENTS TLVs®
2019 NOTICE OF INTENDED CHANGES (NIC)
Optical Radiation

Ergonomics Appendix B: Personal Physiologic Monitoring in the Workplace


2019 ADOPTIONS

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

2019 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
  4. Thermal Stress
    • Cold stress
    • Heat stress and strain

Other Issues Under Study

  1. Fatigue and its management in the workplace
  2. Head supported mass and neck loading
  3. Hypobaric pressure
  4. Sensory-induced motion sickness

BIOLOGICAL EXPOSURE INDICES (BEIs®)
2019 NOTICE OF INTENDED CHANGES (NIC)
Methyl n-butyl ketone (withdraw adopted
    BEI® and Documentation)
Parathion 

2019 ADOPTIONS
Introduction to the BEI® Documentation
Ethylene oxide
N-Ethyl-2-pyrrolidone
n-Hexane 

2019 UNDER STUDY LIST
Chemical Substances
Acrylamide
Adipates
Aniline
Arsenic
Benzene
Bisphenol A
Chromium
Cyclohexane
3,3′-Dichlorobenzidine
Di(2-ethylhexyl) phthalate
Ethylene glycol
Furfural
Heptane
Indium
Iodine
Methemoglobin inducers
Methyl n-butyl ketone
Methyl chloroform
Methylcyclohexane
Methyl isobutyl carbinol
Nickel
Parathion
Phthalates (see Di(2-ethylhexyl) phthalate)
Styrene
Styrene oxide

Other Issues Under Study

  1. Sq Notation
  2. Introduction to the Documentation of the BEIs®

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