CHEMICAL SUBSTANCES TLVs®
2015 NOTICE OF INTENDED CHANGES (NIC)

Introduction to the Chemical Substances – Peak Exposures

• Boron tribromide
• Boron trichloride
• Boron trifluoride
• n-Butyl acetate (withdraw adopted TLV® and Documentation; refer to Butyl acetates, all isomers)
• sec-Butyl acetate(withdraw adopted TLV® and Documentation; refer to Butyl acetates, all isomers)
• tert-Butyl acetate (withdraw adopted TLV® and Documentation; refer to Butyl acetates, all isomers)
• Butyl acetates, all isomers
• Calcium silicate, naturally occurring as Wollastonite
• Calcium silicate, synthetic nonfibrous (withdraw adopted TLV® and Documentation; refer to Appendix B: Particles (insoluble or poorly soluble) Not Otherwise Specified (PNOS))
• Cyanogen
• Ethylene glycol
• Hard metals containing Cobalt and Tungsten carbide, as Co
• Isobutyl acetate (withdraw adopted TLV® and Documentation; refer to Butyl acetates, all isomers)
• Methyl 2-cyanoacrylate
• Phosphine (withdraw from Notice of Intended Changes)
• Propoxur
• Simazine
• Toluene-2,4- or 2,6-diisocyanate (or as a mixture)
• Trimetacresyl phosphate
• Triorthocresyl phosphate
• Triparacresyl phosphate
• Warfarin

2015 ADOPTIONS

• Acetone
• Acetylene (Adopted Documentation withdrawn; refer to Appendix F: Minimal Oxygen Content)
• Cyanogen bromide
• Lithium hydride
• Methyl formate
• Oxalic acid, anhydrous and dihydrate
• Phenyl isocyanate
• 1,2,3-Tricholoropropane
• Triethylamine
• Appendix H: Reciprocal Calculation Method for Certain Refined Hydrocarbon Solvent Vapor Mixtures
•  
• 2015 ADOPTIONS – THE FOLLOWING SUBSTANCES THAT APPEARED ON THE 2014 NIC TO UPDATE THE SENSITIZER (SEN) NOTATION TO EITHER A DERMAL SENSITIZER (DSEN) AND/OR A RESPIRATORY SENSITIZER (RSEN) WERE REVIEWED FOR THE CHANGE IN NOTATION ONLY AND ARE ADOPTED.
• Formaldehyde
• Glutaraldehyde, activated or unactivated
• Hexahydrophthalic anhydride, all isomers
• Methyl methacrylate

2015 UNDER STUDY LIST

• Chemical Substances
• Acetaldehyde
• Acetamide
• Acrylonitrile
• Aldicarb
• Antimony and compounds, as Sb
• Antimony hydride
• Antimony trioxide
• Bendiocarb
• Benz[a]anthracene
• Benzene
• Benzidine
• Benzo[b]fluoranthene
• Benzo[a]pyrene
• Benzoyl peroxide
• Benzyl acetate
• Bromodichloromethane
• 1,3-Butadiene
• tert-Butyl hydroperoxide
• n-Butyl isocyanate
• Cadusafos
• Captafol
• Catechol
• Chlorine
• Chlorine dioxide
• 1-Chloro-1-nitropropane
• ß-Chloroprene
• Chromite ore processing (Chromate), as Cr
• Chromium and inorganic compounds, as Cr
• Chromyl chloride
• Chrysene
• Coal tar pitch volatiles, as benzene soluble    aerosol
• Cobalt and inorganic compounds, as Co
• Cobalt carbonyl, as Co
• Cobalt hydrocarbonyl
• Creosote
• Cumene
• Cyanazine
• 2,4-D
• Di(2-ethylhexyl)phthalate
• Dibutyl phthalate
• 3,3´-Dichlorobenzidine
• 1,3-Dichloro-5,5-dimethyl hydantoin
• 1,1-Dichloro-1-nitroethane
• Dicyclopentadiene
• Dicyclopentadienyl iron, as Fe
• Diethyl phthalate
• Dimethylacetamide
• Dimethyl carbamoyl chloride
• Dimethylformamide
• Dimethylmercury
• Dimethyl phthalate
• Dipropyl ketone
• 1-Ethoxy-2-propylene
• Ethyl acrylate
• Ethyl cyanoacrylate
• Ethylene oxide
• Fluorides
• Fluorine
• Folpet
• Formaldehyde
• Formamide
• Furan
• Furfural
• Furfuryl alcohol
• Germanium tetrahydride
• Glyoxal
• Hafnium and compounds, as Hf
• Hexylene glycol
• Indium tin oxide
• Iodine and Iodides
• Iodoform
• Isoflurane
• Lead and inorganic compounds, as Pb
• Lindane
• Manganese cyclopentadienyl tricarbonyl, as Mn
• Mercury, alkyl compounds
• 2-Methoxymethylethoxy propanol
• Methyl acetylene
• Methyl acrylate
• Methyl tert-butyl ether
• Methyl mercaptan
• Methyl vinyl ketone
• Monomethylacetamide
• Monomethylformamide
• 1-Naphthylamine
• 2-Naphthylamine
• Nickel and inorganic compounds, including Nickel subsulfide, as Ni
• Nitric acid
• Paraquat
• 2,3-Pentanedione
• Phosgene
• Phosphine
• o-Phthalaldehyde
• Phthalic anhydride
• Polycyclic aromatic hydrocarbons
• n-Propyl acetate
• Rosin core solder thermal decomposition products (colophony)
• Stearates
• Stoddard solvent
• Styrene
• Terephthalic acid
• Tetramethyl succinonitrile
• Thiocloprid
• Thioglycolic acid
• Titanium dioxide
• Triethanolamine
• Trimethyl phosphite
• Tungsten and compounds, as W
• Vinyl acetate
• Vinylidene chloride
• Vinylidene fluoride

Chemical Substances as Vapor and Aerosol (V) – Review for Update to Inhalable Fraction and Vapor (IFV)

• Phenyl ether, vapor
• Phosphorous (yellow)
• Tetramethyl lead, as Pb
• Trichloronaphthalene
• Turpentine and selected monoterpenes
• m-Xylene α,α´-diamine

Chemical Substances for Review of Inhalable Fraction and Vapor (IFV) Notation Update

• Ammonium perfluorooctanoate
• o-Anisidine
• Chlordane
• Chlorinated camphene
• o-Chlorinated diphenyl oxide
• o-Chlorobenzylidene malononitrile
• Chlorodiphenyl (42% Chlorine)
• Chlorodiphenyl (54% Chlorine)
• Coumaphos
• Dibutyl phenyl phosphate
• o-Dichlorobenzene
• p-Dichlorobenzene
• Dichloroethyl ether
• Diethanolamine
• Dinitrobenzene
• Dinitro-o-cresol
• Dinitrotoluene
• Diquat-I
• Diquat-R
• Endosulfan
• EPN
• Ethanolamine
• Ethyl silicate
• Heptachlor
• Hexachlorobenzene
• Hexachloronaphthalene
• Hexafluoroacetone
• Isobutyl nitrite
• Isophorone diisocyanate
• N-Isopropylaniline
• 4,4´-Methylene bis(2-chloroaniline)
• 4,4´-Methylene dianiline
• Methyl parathion
• Nicotine
• Nitrapyrin
• p-Nitroaniline
• Nitroglycerin
• 5-Nitro-o-toluidine
• Nitrotoluene, all isomers
• Octachloronaphthalene
• Pentachloronaphthalene
• Pentachloronitrobenzene
• m-Phenylenediamine
• o-Phenylenediamine
• p-Phenylenediamine
• Phosphoric acid
• m-Phthalodinitrile
• Sesone
• Sulfometuron methyl
• Sulfuric acid
• Sulprofos
• Temephos
• 1,1,2,2-Tetrabromomethane
• Tetrachloronaphthalene
• Tributyl phosphate
• 1,2,4-Trichlorobenzene
• Trimethyl benzene
• 2,4,6-Trinitrotoluene
• Triphenyl phosphate

Other Issues Under Study

• Explosion hazard endnote
• Nanoscale primary particle notation
• Vapor and aerosol endnote (V)

PHYSICAL AGENTS TLVs®
2015 NOTICE OF INTENDED CHANGES (NIC)

• Electromagnetic Fields 0–300 GHz
• Radiofrequency/microwave radiation
• Ergonomics
• Upper limb localized fatigue
• Whole-body vibration

2015 ADOPTIONS

• Ergonomics
• Hand-arm vibration

2015 UNDER STUDY LIST

1. Acoustic

Noise/Acoustic

2. Electromagnetic Fields 0–300 GHz

Sub-radiofrequency magnetic fields

Sub-radiofrequency and static electric fields

3. Optical Radiation

Lasers

4. Ergonomics

Hand activity level

5.  Thermal Stress

Cold stress

Heat stress

Other Issues Under Study

• Generalized fatigue and work schedules
• Hyperbaric pressure
• Hypobaric pressure
• Neuroendocrine effects of light

BIOLOGICAL EXPOSURE INDICES (BEIs®)
2015 NOTICE OF INTENDED CHANGES (NIC)

Toluene diisocyanate-2,4- or 2,6- or as a mixture of isomers

2015 ADOPTIONS

• Acetone
• Cobalt and inorganic compounds
• 1,6-Hexamethylene diisocyanate
• Styrene

2015 UNDER STUDY LIST

• Chemical Substances
• Acetylcholinesterase inhibiting pesticides
• Acrylamide
• Benzene
• Bisphenol A
• 1-Bromopropane
• Cadmium and inorganic compounds
• Carbon monoxide
• 3,3´-Dichlorobenzidine
• Dimethylformamide
• Ethylene oxide
• N-Ethylpyrrolidone
• Lead
• Manganese
• Methyl chloroform
• Nickel
• Phthalates
• Polycyclic aromatic hydrocarbons (PAHs)
•  
• Other Issues Under Study
• 1. Introduction to the BEI® Documentation
• 2. Introduction to the Biological Exposure Indices in the TLVs® and BEIs® book

Feasibility Assessments

• Acrylonitrile
• Alachlor
• Aluminum
• Antimony
• Beryllium
• 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-Methyl styrene
• Nickel
• Nitrobenzene
• Perfluorooctanoic acid
• Selenium
• Thallium
• Trimethylbenzene
• Vanadium pentoxide
• Vinyl chloride