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TLV®/BEI® Resources



Notice of Intended Changes (NIC)

2015 TLVs® AND BEIs®
SUBSTANCES AND AGENTS LISTING




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

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

BIOLOGICAL EXPOSURE INDICES (BEIs®)
2015 NOTICE OF INTENDED CHANGES (NIC)
Toluene diisocyanate-2,4- or 2,6-
    or as a mixture of isomers


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