Page 199 - Demo

“Your Safer Source for Science” Chemical Exposure Some Common Chemical TLVs
197
TLV TLV Substance (ppm) (mg/m3)
Acetic Acid 10 25
Acetic Anhydride1 5 21
Acetone 750 1188
Alumina2 — 10
Aluminum Metal2 — 10
Ammonia 25 17
Ammonium Chloride2 — 10
Ammonium Dichromate2 — 0.5
n-Amyl Acetate 100 532
Aniline and Homologs3 2 7.6
Antimony and Compounds — 0.5
Arsenic and Soluble Compounds — 0.01
Barium and Barium Compounds — 0.5
Barium Sulfate — 10
Benzene 0.5 1.6
Benzoyl Peroxide — 5
Bromine and Bromine Water 0.1 0.66
Bromoform 0.5 5.2
Butane 800 1900
2-Butanone 200 590
n-Butyl Alcohol1,3 50 152
sec-Butyl Alcohol 100 300
tert-Butyl Alcohol 100 303
Cadmium and Cadmium — 0.01 Compounds2
Calcium Carbonate — 10
Calcium Hydroxide — 5
Calcium Oxide — 2
Calcium Sulfate — 10
Camphor, synthetic 2 12
Carbon Dioxide 5000 9000
Carbon Disulfide3 10 31
Cellulose — 10
Charcoal — 3.5
Chlorine, gas 0.5 1.5
TLV TLV Substance (ppm) (mg/m3)
Chloroform 10 49
Chromates and Dichromates — 0.05
Chromium (III) Compounds — 0.5
Chromium Metal and — 0.5 Insoluble Salts
Cobalt — 0.02
Copper2 — 1
Cyclohexane 300 1030
Cyclohexanol3 50 206
Cyclohexanone3 25 100
Cyclohexene 300 1010
p-Dichlorobenzene 10 60
Dioxane3 25 90
Ether, Ethyl 400 1210
Ethyl Acetate 400 1440
Ethyl Alcohol 1000 1880
Ethylenediamine3 10 25
Ethylene Dichloride3 10 40
Ethylene Glycol1 — 100
Formaldehyde 0.3 0.37
Formic Acid 5 9.4
n-Heptane 400 1640
n-Hexane 50 176
Hydrochloric Acid1 5 7.5
Hydrogen Fluoride1 3 2.3
Hydrogen Peroxide 1 1.4
Hydrogen Sulfide (gas) 10 14
Hydroquinone — 2
Iodine1 0.1 1
Isoamyl alcohol 100 361
Isopropyl Alcohol 400 983
Lead, Metal and Compounds2 — 0.05
Magnesium Oxide2 — 10
Manganese2 — 0.2
Mercury — 0.025
TLV TLV Substance (ppm) (mg/m3)
Methyl Alcohol3 200 262
Methyl Chloroform 350 1910
Methyl-t-Butyl Ether 40 144
Methyl Ethyl Ketone 200 590
Methyl Isobutyl Ketone 50 205
Methyl Methacrylate 100 410
Naphthalene 10 52
Nicotine3 — 0.5
Nitric Acid 2 5.2
Oxalic Acid — 1
Pentane 600 1770
Phenol3 5 19
Phosphorus 0.02 0.1
Phthalic Anhydride1 1 6.1
Potassium Hydroxide1 — 2
Propane 2500 4508
n-Propyl Alcohol3 200 492
Pyridine 5 16
Silver Nitrate — 0.01 (as silver)
Sodium Bisulfite — 5
Sodium Hydroxide1 — 2
Styrene3 50 213
Sulfur Dioxide (gas) 2 5.2
Sulfur Hexafluoride 1000 5970
Sulfuric Acid — 1
Tetrahydrofuran 200 590
Tin (inorganic) — 2
Titanium Dioxide2 — 10
Toluene 50 188
Trichloroethylene 50 269
Turpentine 100 556
Xylenes 100 434
Zinc Chloride2 — 1
Zinc Oxide2 — 5
IF IN DOUBT, USE A HOOD!
1Ceiling TLVs. Chemicals where the TLVs should not be exceeded even for a second. These substances are acute and fast-acting.
2TLV for dust or fume.
3These chemicals are rapidly absorbed by the skin, eyes, and mucous membranes. TLVs should be strictly observed for these substances.