CHEMICAL SUBSTANCES TLVs® 2018 NOTICE OF INTENDED CHANGES (NIC)

Introduction to the Chemical Substances – Threshold Limit Value-Surface Limit (TLV-SL)

New notation – Ototoxicant (OTO)

Antimony trioxide (withdrawn from Notice of Intended Changes)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Calcium chromate, as Cr (adopted TLV® and Documentation withdrawn; see Chromium and inorganic compounds)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Chromite ore processing (Chromate), as Cr (line entry from the TLVs® and BEIs® book withdrawn; see Chromium and inorganic compounds)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Chromyl chloride (adopted TLV® and Documentation withdrawn; see Chromium and inorganic compounds)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Ethyl cyanoacrylate (adopted TLV® and Documentation withdrawn; see Cyanoacrylates, Ethyl and Methyl)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Isopropyl acetate (adopted TLVs® and Documentation withdrawn; see Propyl acetate isomers)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Methyl 2-cyanoacrylate (adopted TLV® and Documentation withdrawn; see Cyanoacrylates, Ethyl and Methyl)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 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 (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

Hand–Arm vibration

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

Generalized fatigue and work schedules

Hypobaric pressure

Introduction to the Physical Agents Documentation

Personal physiologic monitoring

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

a-Methylstyrene

Nickel

Nitrobenzene

Perfluorooctanoic acid

Selenium

Thallium

Trimethylbenzene

Vanadium pentoxide

Vinyl chlorid