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TLV®/BEI® Resources



Chemical Substances and Other Issues Under Study (TLV®-CS Committee)

Note: All substances and issues listed below are as of January 2012, unless otherwise indicated.

Chemical Substances
Acetylene
Acrylonitrile
Antimony and compounds, as Sb
Antimony hydride
Antimony trioxide, production
Argon
Atrazine (and related symmetrical
     triazines)
Barium sulfate
Benz[a]anthracene
Benzidine
Benzo[b]fluoranthene
Benzophenone
Benzo[a]pyrene
Borate compounds, inorganic
Boron tribromide
Boron trifluoride
Bromodichloromethane
sec-Butyl acetate
tert-Butyl acetate
tert-Butyl hydroperoxide
n-Butyl isocyanate
Butylated hydroxytoluene (BHT)
Calcium silicate, naturally occurring
    as wollastonite
Calcium silicate, synthetic nonfibrous
Chlorine
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
Cobalt hydrocarbonyl
Creosote
Cyanogen
Cyanogen bromide
Cyanogen chloride
Dibutyl phthalate
3,3´-Dichlorobenzidine
1,3-Dichloro-5,5-dimethyl hydantoin
Dicyclopentadiene
Diethyl phthalate
Diethylamine
Di(2-ethylhexyl)phthalate (DEHP)
N,N-Dimethyl acetamide
Dimethyl carbamoyl chloride
Dimethyl phthalate
Dimethylamine
Dimethylformamide
Dipropyl ketone
1-Ethoxy-2-propylene
Ethyl cyanoacrylate
Ethyl isocyanate
Ethylamine
Ethylene norbornene
Ethylidene norbornene
  Fluorides, as F
Fluorine
Gasoline, all formulations
Hard metals, Cobalt and Tungsten carbide
Helium
Hexamethylene diisocyanate
Hydrogen
Iodoform
Isophorone diisocyanate
Lead and inorganic compounds, as Pb
Lithium hydride
Mercury, alkyl compounds
Methanol
Methomyl
Methyl acetate
Methyl acetylene
Methyl formate
Methyl isocyanate
Methyl mercaptan
Methyl vinyl ketone
Methylamine
Methylene bis(4-cyclohexylisocyanate)
Methylene bisphenyl isocyanate (MDI)
1-Naphthylamine
2-Naphthylamine
Neon
Nickel and inorganic compounds,
    including Nickel subsulfide
Nickel carbonyl
Nitric acid
Nitrogen
Paraquat
Pentachlorophenol
Pentaerythritol
Pentane, all isomers
2,3-Pentanedione
Phenyl isocyanate
Phosphine
o-Phthalaldehyde
Phthalic anhydride
Polycyclic aromatic hydrocarbons (PAHs)
Polymeric MDI
Propoxur
Silicone tetrahydride
Simazine
Stearates
Stoddard solvent
Terephthalic acid
Tetramethyl succinonitrile
Thiacloprid
Thioglycolic acid
Titanium dioxide
Triethanolamine
Triethylamine
Trimethylamine
Tungsten and compounds, as W
Tungsten carbide
Vinyl acetate
5-Vinyl-2-norbornene

Chemical Substances as Vapor and Aerosol (V) – Review for Update to Inhalable Fraction and Vapor (IFV)
Iodine and iodides
Phenyl ether, vapor
Phosphorous (yellow)
Tetramethyl lead, as Pb
  Trichloronaphthalene
Warfarin
m-Xylene α,α´-diamine

Chemical Substances Designated as Sensitizers (SEN) – Review for Update to Respiratory Sensitization (RSEN) and/or Dermal Sensitization (DSEN)
Alachlor
Allyl propyl disulfide
Azinphos-methyl
Benomyl
Beryllium and compounds, as Be
n-Butyl acrylate
n-Butyl glycidyl ether (BGE)
Captan
Citral
Demeton-S-methyl
Dichlorvos (DDVP)
Dodecyl mercaptan
Flour dust
Formaldehyde
Glutaraldehyde, activated or inactivated
Glyoxal
Hexahydrophthalic anhydride, all isomers
Hydroquinone
2-Hydroxypropyl acrylate
Maleic anhydride
Methyl acrylate
Methyl methacrylate
Methyl vinyl ketone
Naled
Natural rubber latex, as inhalable
    allergenic proteins
Phenyl glycidyl ether (PGE)
Phthalic anhydride
Piperazine and salts
  Propylene dichloride
Propylene oxide
Rosin core solder thermal decomposition
    products (colophony)
Tetrakis (hydromethyl) phosphonium
    sulfate
Thiram
Toluene-2,4- or 2,6-diisocyanate
    (or as a mixture)
Trimellitic anhydride
Turpentine and selected monoterpenes
Wood dusts (Western red cedar)

Other Issues Under Study

  1. Appendix A: Carcinogenicity
  2. Appendix H: Reciprocal Calculation Method for Certain Refined Hydrocarbon Solvent Vapor Mixtures
  3. Excursion limits
  4. Explosion hazard endnote
  5. Sensitization (SEN) notation and definition
  6. Simple asphyxiants and endnote (D)
  7. TLV®/BEI® Development Process
  8. Vapor and aerosol endnote (V)


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