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ACGIH® Press Release

ACGIH® BOARD RATIFIES 2011 TLVs® and BEIs®

2011 TLVs® and BEIs®
Substances and Agents Listing




CHEMICAL SUBSTANCES TLVs®
2011 NOTICE OF INTENDED CHANGES (NIC)
Acetaldehyde
Acetone
Allyl bromide
1-Bromopropane
Calcium silicate (withdrawn from
    Notice of Intended Changes)
Carbonyl sulfide
Diacetyl
Diethylene glycol monobutyl ether
Ethyl tert-butyl ether
Ethyl formate
Glycerin, mist (withdraw adopted
    Documentation and TLV®)
Manganese, elemental and
    inorganic compounds, as Mn
Naphthalene
Nitrogen dioxide
Nonane
Nonane, all isomers (withdraw
    adopted Documentation and
    TLV®; see NIC entry for Nonane)
o-Phthalodinitrile
Piperazine and salts
Piperazine dihydrochloride (withdraw
    adopted Documentation and TLV®;
    see NIC entry for Piperazine and
    salts)
Toluene-2,4- or 2,6-diisocyanate
    (or as a mixture)

2011 ADOPTIONS
Acetic anhydride
Allyl chloride
Carbon black
Ethyl benzene
Maleic anhydride
Methylacrylonitrile
Methyl isopropyl ketone
2,4-Pentanedione
Soapstone (Documentation and
    adopted TLV® withdrawn; see
    Documentation for Talc)
4,4'-Thiobis(6-tert-butyl-m-cresol)

2011 UNDER STUDY LIST
Acetophenone
Acrylonitrile
Aliphatic hydrocarbon gases,
    Alkanes [C1-C4]
Antimony and compounds, as Sb
Antimony hydride
Antimony trioxide, production
Atrazine (and related symmetrical
    triazines)
Barium sulfate
Benz[a]anthracene
Benzidine
Benzo[b]fluoranthene
Benzo[a]pyrene
Boron tribromide
Boron trifluoride
Bromodichloromethane
Butane
sec-Butyl acetate
tert-Butyl acetate
tert-Butyl hydroperoxide
n-Butyl isocyanate
Butylated hydroxytoluene (BHT)
Calcium silicate
Calcium silicate, synthetic nonfibrous
Chlorine
Chromite ore processing (Chromate),
    as Cr
Chromium and inorganic compounds,
    as Cr
Chromyl chloride
Chrysene
Clopidol
Coal tar pitch volatiles, as benzene
    soluble aerosol
Cobalt and inorganic compounds,
    as Co
Cobalt carbonyl
Cobalt hydrocarbonyl
Creosote
Cyanogen bromide
Cyanogen chloride
2,4-D
Di(2-ethylhexyl)phthalate (DEHP)
Dibutyl phthalate
3,3'-Dichlorobenzidine
1,3-Dichloro-5,5-dimethyl hydantoin
Dicyclopentadiene
Diethyl phthalate
Diethylhydroxylamine (DEHA)
N,N-Dimethyl acetamide
Dimethyl phthalate
Dimethylformamide
Dipropyl ketone
Ethane
1-Ethoxy-2-propylene
Ethyl cyanoacrylate
Ethyl isocyanate
Ethylene norbornene
Ethylene oxide
Ethylidene norbornene
Fluorides, as F
Fluorine
Gasoline, all formulations
Hexamethylene diisocyanate
Iodoform
Isobutane
Isophorone diisocyanate
Lead and inorganic compounds,
    as Pb
Liquefied petroleum gas (LPG)
Lithium hydride
Mercury, alkyl compounds
Methane
Methomyl
Methoxypropanol
Methyl acetate
Methyl acetylene
Methyl formate
Methyl isoamyl ketone
Methyl isocyanate
Methyl mercaptan
Methyl vinyl ketone
Methylene bis (4-cyclohexyliso-
    cyanate)

  Methylene bisphenyl isocyanate
    (MDI)
1-Naphthylamine
2-Naphthylamine
Natural gas
Nickel and inorganic compounds,
    including Nickel subsulfide
Nickel carbonyl
Paraquat
Pentachlorophenol
Pentaerythritol
Peracetic acid
Phenyl isocyanate
o-Phthalaldehyde
Phthalic anhydride
Polycyclic aromatic hydrocarbons
    (PAHs)
Polymeric MDI
Propane
Simazine
Stearates
Stoddard solvent
Terephthalic acid
Tetramethyl succinonitrile
Thiacloprid
Thioglycolic acid
Titanium dioxide
Tributyl phosphate
Trichloroacetic acid
1,2,3-Trichloropropane
Triethanolamine
Tungsten and compounds
Tungsten carbide
Vinyl acetate
5-Vinyl-2-norbornene
Wood dusts

Other Issues

  1. Appendix A: Carcinogenicity
  2. Appendix H: Reciprocal Calculation Method for Certain Refined Hydrocarbon Solvent Vapor Mixtures
  3. Excursion limits

PHYSICAL AGENTS TLVs®
2011 NOTICE OF INTENDED CHANGES (NIC)
Electromagnetic Radiation and Fields
    — Lasers
    — Ionizing Radiation

2011 ADOPTIONS
There are no agents adopted for 2011.

2011 UNDER STUDY LIST

  1. Electromagnetic Radiation and Fields
    • Light and near-infrared radiation
  2. Ergonomics
    • Hand-arm vibration
    • Localized fatigue
    • Whole body vibration
  3. Thermal Stress
    • Cold stress

Other Issues

  1. Hypobaric pressure

BIOLOGICAL EXPOSURE INDICES (BEIs®)
2011 NOTICE OF INTENDED CHANGES (NIC)
Fluorides

2011 ADOPTIONS
There are no substances adopted for 2011.

2011 UNDER STUDY LIST
Chemical Substances
3,3-Dichlorobenzidine
N,N-Dimethylacetamide
Ethyl benzene
Ethylene oxide
Hexamethylene diisocyanate
Manganese
Mercury
Methyl ethyl ketone
Naphthalene
Pentachlorophenol
Toluene diisocyanate
Xylenes

Other Issues

  1. Creatinine normalization
  2. Metabolic polymorphisms
  3. Consistency of BEI® Documentation
  4. BEI® sampling strategies/frequency of sampling
  5. Sq notation

Feasibility Assessment
Acrylonitrile
Alachlor
Aluminum
Antimony
Beryllium
Chlorpyrifos
1,4-Dichlorobenzene
2,4-Dichlorophenoxyacetic acid
2-Ethyl hexanoic acid
Hydrazines
Inorganic borates
Manganese
Methyl tert-butyl ether
Methyl n-butyl ketone
Methyl formate
α-Methyl styrene
Nickel
Perfluorooctanoic acid (PFOA)
Selenium
Thallium
Trimethylbenzene
Vanadium pentoxide
Vinyl chloride

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