2019 TLVs AND BEIs

Cover
Policy Statement
Copyright
FOHS Sustainable TLV/BEI Fund
TABLE OF CONTENTS
Statement of Position Regarding the TLVs and BEIs
TLV/BEI Development Process: An Overview
Online TLV and BEI Resources
Revisions or Additions for 2019
Chemical Substances Table of Contents
TLV Chemical Substances Committee
Introduction to the Chemical Substances
	General Information
	Definition of the TLVs
	Peak Exposures
	TWA and STEL versus Ceiling (C)
	Mixtures
Deviations in Work Conditions and Work Schedules
	Application of TLVs to Unusual Ambient Conditions
	Unusual Work Schedules
TLV Units
References and Selected Readings
Adopted Threshold Limit Values
	Acetaldehyde - Adipic acid
	Adiponitrile - Amitrole
	Ammonia - Arsenic and inorganic compounds
	Arsine - Benzene
	Benzidine - Borate compounds, inorganic
	Boron oxide - n-Butanol
	sec-Butanol - n-Butyl lactate
	n-Butyl mercaptan - Caprolactam
	Captafol - Catechol
	Cellulose - o-Chlorobenzylidene malononitrile
	Chlorobromomethane - o-Chlorostyrene
	o-Chlorotoluene - Coal dust
	Coal tar pitch volatiles - Cyanamide
	Cyanazine - 2,4-D
	DDT - Dichloroacetic acid
	Dichloroacetylene - 1,3-Dichloropropene
	2,2-Dichloropropionic acid - Diethylenetriamine
	Di(2-ethylhexyl)phthalate - Dimethyl disulfide
	Dimethylethoxysilane - 1,4-Dioxane
	Dioxathion - EPN
	Ethane - Ethyl butyl ketone
	Ethyl chloride - Ethyl isocyanate
	Ethyl mercaptan - Fonofos
	Formaldehyde - Hafnium and compounds
	Halothane - Hexahydrophthalic anhydride, all isomers
	Hexamethylene diisocyanate - Hydrogen bromide
	Hydrogen chloride - Indium tin oxide
	Iodine and Iodides - Isopropylamine
	N-Isopropylaniline - Malathion
	Maleic anhydride - 2-Methoxyethanol
	2-Methoxyethyl acetate - N-Methylaniline
	Methyl bromide - Methylene bis(4-cyclohexylisocyanate
	4,4\'-Methylenedianiline - Methyl methacrylate
	1-Methylnaphthalene and 2-Methylnaphthalene - Mineral oil, excluding metal working fluids
	Molybdenum - Neon
	Nickel and inorganic compounds including Nickel subsulfide - Nitroethane
	Nitrogen - Octane
	Osmium tetroxide - Pentachloronaphthalene
	Pentachloronitrobenzene - Phenothiazine
	N-Phenyl-beta-naphthylamine - Phosphoric acid
	Phosphorus (yellow) - Piperazine and salts
	Platinum, and soluble salts - Propyl acetate isomers
	Propylene - Ronnel
	Rosin core solder thermal decomposition products (colophony) - Simazine
	Sodium azide - Subtilisins
	Sucrose - Sulprofos
	Synthetic vitreous fibers - Terephthalic acid
	Terphenyls (o-, m-, p- isomers) - Tetrakis (hydroxymethyl) phosphonium salts
	Tetramethyl lead - Titanium dioxdie
	o-Tolidine - Trichloronaphthalene
	1,2,3-Trichloropropane - Tungsten and compounds, in the absence of Cobalt
	Turpentine and selected monoterpenes - Vinylidene fluoride
	Vinyltoluene - Zirconium and compounds
Notice of Intended Changes
Notice of Intended Changes (continued)
Notice of Intended Changes (continued)
Chemical Substances and Other Issues Under Study
Definitions and Notations
	Documentation
	Minimal Oxygen Content
	Nanomaterials
	Notation
	Notice of Intended Change (NIC)
	Particulate Matter/Particle Size
	Particles (insoluble or poorly soluble) Not Otherwise Specified (PNOS)
	TLV Basis
	Abbreviations
Notations/Endnotes
	Biological Exposure Indices (BEIs)
	Carcinogenicity
	Inhalable Fraction and Vapor (IFV)
	Ototoxicant
	Sensitization
	Skin
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Adopted Appendices
	Appendix A: Carcinogenicity
	Appendix B: Particles (insoluble or poorly soluble) Not Otherwise Specified (PNOS)
	Appendix C: Particle Size-Selective Sampling Criteria for Airborne Particulate Matter
	Appendix D: Commercially Important Tree Species Suspected of Inducing Sensitization
	Appendix E: Threshold Limit Values for Mixtures
	Appendix F: Minimal Oxygen Content
	Appendix G: Substances Whose Adopted Documentation and TLVs Were Withdrawn For a Variety of Reasons, Including Insufficient Data, Regrouping, Etc.
	Appendix H: Reciprocal Calculation Method for Certain Refined Hydrocarbon Solvent Vapor Mixtures
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Biological Exposure Indices Table of Contents
Biological Exposure Indices Committee
Introduction to the Biological Exposure Indices
	Documentation
	Relationship of BEIs to TLVs
	Specimen Collection
	Urine Specimen Acceptability
	Notations
	Quality Assurance
	Application of BEIs
Adopted Biological Exposure Determinants
	Acetone - 1,3-Butadiene
	2-Butoxyethanol - Chlorobenzene
	Cholinesterase inhibiting pesticides - Cyclohexanol
	Cyclohexanone - Ethylbenzene
	Ethylene oxide - Lead and inorganic compounds
	Mercury, elemental - 4,4-Methylene bis(2-chloroaniline)
	Methyl ethyl ketone - Phenol
	Polycyclic aromatic hydrocarbons - Toluene
	Toluene Diisocyanate-2,4- or 2,6- or as a mixture of isomers - Xylenes
Notice of Intended Changes
Chemical Substances and Other Issues Under Study
Feasibility Assessments
Threshold Limit Values for Physical Agents in the Work Environment Table of Contents
TLV Physical Agents Committee
Introduction to the Physical Agents
	Notice of Intended Changes
	Definitions
	Physical and Chemical Factors
	Unusual Work Schedules
Acoustic
	Infrasound and Low-Frequency Sound
	Audible Sound
	Ultrasound
Electromagnetic Radiation Spectrum and Related TLVs
Electromagnetic Fields 0-300 GHz
	Static Magnetic Fields
	Sub-Radiofrequency (30 kHz and below) Magnetic Fields
	Sub-Radiofrequency (30 kHz and below) and Static Electric Fields
	Radiofrequency/Microwave Radiation
Optical Radiation
	Light and Near-Infrared Radiation
	Ultraviolet Radiation
	Lasers
	Notice of Intended Change - Lasers
Ionizing Radiation
Ergonomics
	Statement on Work-Related Musculoskeletal Disorders
	Hand Activity
	Lifting
	Hand-Arm Vibration
	Upper Limb Localized Fatigue
	Whole-Body Vibration
	Notice of Intended Change - Whole-Body Vibration
Thermal Stress
	Cold Stress
	Heat Stress and Strain
Physical Agents and Other Issues Under Study
Appendix A: Statement on the Occupational Health Aspects of New Lighting Technologies - Circadian, Neuroendocrine and Neurobehavioral Effects of Light
Notice of Intent to Establish - Appendix B: Personal Physiologic Monitoring in the Workplace
Biologically Derived Airborne Contaminants
	Bioaerosols Committee
	Introduction to the Biologically Derived Airborne Contaminants
	Biologically Derived Agents Under Study
CAS Number Index
	50-00-0 - 71-55-6
	72-20-8 - 75-61-6
	75-63-8 - 79-10-7
	79-11-8 - 92-67-1
	92-84-2 - 100-00-5
	100-01-6 - 106-98-9
	106-99-0 - 108-46-3
	108-68-9 - 111-69-3
	111-76-2 - 124-38-9
	124-40-3 - 218-01-9
	287-92-3 - 543-56-3
	542-75-6 - 628-96-6
	630-08-0 - 1330-20-7
	1330-43-4 - 3710-84-7
	3825-26-1 - 7440-74-6
	7446-09-5 - 7789-06-2
	7789-30-2 - 11070-44-3
	11097-69-1 - 15972-60-8
	16219-75-3 - 53469-21-9
	55566-30-8 - 946578-00-3
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Notes
Endnotes and Abbreviations
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