American Conference of Governmental Industrial Hygienists (ACGIH®), your industrial hygiene, environmental, occupational health and safety resource that advances worker health and safety and offers books, conferences, and education and training courses.

Site MapContact UsFAQsHome


Search  
Advanced

AboutProductsMembershipEducationTLV/BEI ResourcesFoundationResources
Sign up for the ACGIH.ORG Mailing List


TLV®/BEI® Resources


Notice of Intended Changes (NIC)

2012 TLVs® AND BEIs®
SUBSTANCES AND AGENTS LISTING


CHEMICAL SUBSTANCES TLVs®
2012 NOTICE OF INTENDED CHANGES (NIC)
Acetaldehyde
Acetone
Aliphatic hydrocarbon gases, Alkanes
    [C1–C4] (withdraw adopted Documentation
    and TLV®. Methane, Ethane, Propane,
    Liquefied petroleum gas (LPG) and Natural
    gas – refer to Appendix F: Minimal Oxygen
    Content. Butane and Isobutane – refer to
    NIC entry for Butane, all isomers)
1-Bromopropane
Butane, all isomers
Clopidol
2,4-D
Diethylene glycol monobutyl ether
N,N-Diethylhydroxylamine (DEHA)
Ethyl tert-butyl ether
Glycerin, mist (withdraw adopted
    Documentation and TLV®)
Manganese, elemental and inorganic
    compounds, as Mn
1-Methoxy-2-propanol
Methyl isoamyl ketone
Naphthalene
Peracetic acid
Toluene-2,4- or 2,6-diisocyanate (or as
    a mixture)
Tributyl phosphate
Trichloroacetic acid
1,2,3-Trichloropropane

  PHYSICAL AGENTS TLVs®
2012 NOTICE OF INTENDED CHANGES (NIC)
There are no substances proposed for the 2012 Notice of Intended Changes.

BIOLOGICAL EXPOSURE INDICES (BEIs®)
2012 NOTICE OF INTENDED CHANGES (NIC)
Ethyl benzene
Mercury
Methyl ethyl ketone
Naphthalene
Pentachlorophenol
Toluene diisocyanate

Last update on 02/01/2012. Questions or problems? Please contact us. © 2012 American Conference of Governmental Industrial Hygienists, 1330 Kemper Meadow Drive, Cincinnati, Ohio 45240, 513-742-2020. ACGIH® and related marks are marks of the American Conference of Governmental Industrial Hygienists. All Rights Reserved. Terms of Access. ACGIH® Privacy Policy. Site Map.