Substance |
CAS |
Source |
8-Hour TWA |
Ceiling or Short- Term TWA |
Last Revised |
| Acetone Cyanohydrin | 75-86-5 | AIHA |
2 ppm (skin) | 5 ppm (15 min, skin) | 1992 |
| Acetophenone | 98-86-2 | AIHA |
10 ppm | 2007 |
|
| Aldicarb | 116-06-3 | AIHA |
0.01 mg/m3 (skin) | — | 2009 |
| Allyl lsothiocyanate | 57-06-7 | AIHA |
— | 1 ppm (15-min, skin, DSEN) |
993 |
| Aminobenzoic Acid, para- | 150-13-0 | AIHA |
5 mg/m3 | 2001 |
|
| Aminotri (Methylenephosphonic Acid) | 6419-19-8 | AIHA |
10 mg/m3 | 2004 |
|
| Amyl Alcohol, n- | 71-41-0 | AIHA |
100 ppm | 2001 |
|
| Benzaldehyde | 100-52-7 | AIHA |
2 ppm | 4 ppm (15-min, DSEN) |
1998 |
| Benzenesulfonicacid, 5-chloro-2((2-Hydroxy-1 napthalenyl)-azo)-4-methyl, barium salt (2:1) |
5160-02-1 | AIHA |
1 mg/m3 | 2008 |
|
| Benzophenone | 119-61-9 | AIHA |
0.5 mg/m3 | 2003 |
|
| Benzoyl Chloride | 98-88-4 | AIHA |
— | 5 ppm (ceiling, skin, DSEN) |
2008 |
| Benzyl Alcohol | 100-51-6 | AIHA |
10 ppm | 2008 |
|
| Butylcatechol, 4-tert- | 98-29-3 | AIHA |
— | 2 mg/m3 (ceiling, skin, DSEN) |
2001 |
| Butyraldehyde | 123-72-8 | OARS |
25 ppm (75 mg/m3) | — | 2016 |
| Chloramphenicol | 56-75-7 | AIHA |
0.5 mg/m3 | 2008 |
|
| ChIoroisopropyI)Ether, bis-(2- | 39638-92-9 | AIHA |
3 ppm | 2009 |
|
| Chloropropane, 2- | 75-29-6 | OARS |
50 ppm (161 mg/m3) | — | 2016 |
| Chlorosulfonic Acid | 7790-94-5 | OARS |
2016* |
||
| Chlorotrifluoroethylene | 79-38-9 | AIHA |
5 ppm | 2010 |
|
| Cumene Hydroperoxide | 80-15-9 | AIHA |
1 ppm (skin) | — | 2009 |
| Decabromodiphenyl Oxide | 1163-19-5 | AIHA |
5 mg/m3 | 2009 |
|
| Decafluoropentane, 1,1,1,2,3,4,4,5,5,5- (HFC- 4310mee) | 138495-42-8 | OARS |
225 ppm (2320 mg/m3) | 700 ppm (7217 mg/m3) |
2020 |
| Decamethylcyclopentasiloxane (D5) | 541-02-6 | OARS |
10 ppm | 2015 |
|
| Decene, 1- | 872-05-9 | AIHA |
100 ppm | — | 2000 |
| Dehydrolinalool | 29171-20-8 | AIHA |
2 ppm | — | 2007 |
| Diallylamine | 124-02-7 | AIHA |
1 ppm (skin) | 2009 |
|
| Dibromoneopentyl Glycol | 3296-90-0 | AIHA |
0.2 mg/m3 | 2010 |
|
| Dibutylamine | 111-92-2 | AIHA |
5 ppm (ceiling, skin) | 2003 |
|
| Dichlorophenol, 2,4- | 120-83-2 | AIHA |
1 ppm (skin*) | — | 2004 |
| Diethylbenzenes, mixed isomers | 25340-17-4 | AIHA |
5 ppm | 2005 |
|
| Diethylene Glycol | 111-46-6 | OARS |
10 mg/m3 | 2016 |
|
| Diethylene Glycol Monoethyl Ether | 111-90-0 | AIHA |
25 ppm | 1991 |
|
| Difluoroethane, 1,1- | 75-37-6 | AIHA |
1000 ppm | 2005 |
|
| Difluoroethane, 1-ChIoro-1,1- | 75-68-3 | AIHA |
1000 ppm | — | 1994 |
| Difluoromethane | 75-10-5 | AIHA |
1000 ppm | 1997 |
|
| Diisobutylene | 25167-70-8 | OARS |
75 ppm (344 mg/m3 ) | 2016 |
|
| Dimethyl Ether | 115-10-6 | AIHA |
1000 ppm | 2010 |
|
| Dimethyl Sulfoxide | 67-68-5 | AIHA |
250 ppm | — | 2003 |
| Dimethyl Terephthalate | 120-61-6 | AIHA |
5 mg/m3 (total) | — | 2000 |
| Dimethyldichlorosilane | 75-78-5 | AIHA |
2 ppm (ceiling) | 2001 |
|
| Dimethylethylamine | 598-56-1 | AIHA |
1 ppm | 3 ppm | 2011 |
| Dimethyl-para-toluidine, n,n- | 99-97-8 | AIHA |
0.5 ppm | 2009 |
|
| Dinitroanisole, 2,4- (DNAN) | 119-27-7 | OARS |
0.1 mg/m3 (0.01 ppm) | 2014 |
|
| Dowtherm Q | 612-00-0, 68987-42-8 |
AIHA |
7.8 mg/m3 | 2002 |
|
| Epoxybutane, 1,2- | 106-88-7 | AIHA |
2 ppm | 2003 |
|
| Erythromycin | 114-07-8 | AIHA |
3 mg/m3 | 2007 |
|
| Fluoroethane, 1,1-dichloro-1- | 1717-00-6 | AIHA |
500 ppm | 3000 ppm (5-min STEL) |
2008 |
| Furan | 110-00-9 | AIHA |
Worker exposure by all routes should be minimalized to the fullest extent possible. |
1993 |
|
| GlycidylMethacrylate | 106-91-2 | AIHA |
0.5 ppm (skin, DSEN) | — | 2000 |
| Glyoxal | 107-22-2 | AIHA |
0.1 mg/m3 (DSEN) | 2000 |
|
| Hexadiene, 1,4- (mixed cis and trans) | 592-45-0 | AIHA |
10 ppm | — | 2009 |
| Hexafluoro-2-butene, cis-1,1,1,4,4,4- (HFO 1336mzz-Z) |
692-49-9 | OARS |
500 ppm (3350 mg/m3) | — | 2014 |
| Hexafluoro-2-butene, trans-1,1,1,4,4,4- (HFO 1336mzz-E) |
66711-86-2 | OARS |
400 ppm (2680 mg/m3) | — | 2018 |
| Hexafluoropropane, 1,1,1,3,3,3- | 690-39-1 | AIHA |
1000 ppm | 1998 |
|
| Hexamethyldisilazane (HMDZ) | 999-97-3 | OARS |
10 ppm | 50 ppm | 2018 |
| Hexamethylene Glycol | 629-11-8 | AIHA |
10 mg/m3 | 2011 |
|
| Hexanediamine, 1,6- | 124-09-4 | AIHA |
1 ppm | 2004 |
|
| Hexanediol Diacrylate | 13048-33-4 | AIHA |
1 mg/m3 (DSEN) | 1998 |
|
| Hexyl Alcohol, n- | 111-27-3 | AIHA |
40 ppm (eye irritation) | 2011 |
|
| HFE-7100 | 163702-07-6, 163702-08-7 |
AIHA |
750 ppm | 1999 |
|
| Hydroxybenzoic Acid, 4- | 99-96-7 | OARS |
5 mg/m3 | 2016 |
|
| Isobutyraldehyde | 78-84-2 | AIHA |
25 ppm | — | 2002 |
| Isocyanuric Acid | 108-80-5 | AIHA |
10 mg/m3 (total); 5 mg/m3 (respirable) |
2005 |
|
| Isophthalic Acid | 121-91-5 | AIHA |
10 mg/m3 (total); 5 mg/m3 (respirable) |
1991 |
|
| Isoprene | 78-79-5 | AIHA |
2 ppm | 2004 |
|
| Limonene, d- | 5989-27-5 | AIHA |
30 ppm | 1993 |
|
| Lithium Hydroxide | 1310-65-2 | AIHA |
1 mg/m3 (ceiling) | 1999 |
|
| Lithium Oxide | 12057-24-8 | AIHA |
1 mg/m3 (ceiling) | 1999 |
|
| Mancozeb | 8018-01-7 | AIHA |
1 mg/m3 (total, DSEN) | 2008 |
|
| Melamine | 108-78-1 | OARS |
3 mg/m3 | 2016 |
|
| Menthol | 1490-04-6 | OARS |
1 ppm | 3 ppm (15 min) | 2014 |
| Mercaptobenzothiazole, 2- | 149-30-4 | AIHA |
5 mg/m3 (skin, DSEN) | 2010 |
|
| Mercaptoethanol | 60-24-2 | AIHA |
0.2 ppm (skin) | 2002 |
|
| Methoxypropylamine, 3- | 5332-73-0 | AIHA |
5 ppm | 15 ppm (15 min) | 2009 |
| Methoxytridecafluoroheptene isomers (MPHE) | Variable | OARS |
200 ppm | — | 2020 |
| Methyl Ethyl Ketoxime | 96-29-7 | AIHA |
10 ppm (DSEN) | 1990 |
|
| Methyl-2-PyrroIidone, n- (NMP) | 872-50-4 | OARS |
15 ppm (60 mg/m3) Skin | 30 ppm (120 mg/m3) | 2021 |
| Methyltrichlorosilane | 75-79-6 | AIHA |
1 ppm (ceiling) | 2001 |
|
| Monochloroacetic Acid | 79-11-8 | AIHA |
0.5 ppm (skin) | 2004 |
|
| Nitro-1,2,4-TriazoI-5-One, 3- (NTO) | 932-64-9 | OARS |
2 mg/m3 | 2014 |
|
| Nitroguanidine, 1- (NQ) | 556-88-7 | OARS |
7 mg/m3 | — | 2016 |
| Octamethylcyclotetrasiloxane (D4) | 556-67-2 | OARS |
10 ppm | 2014 |
|
| Octanol, 1- | 111-87-5 | AIHA |
50 ppm | 2005 |
|
| Octene, 1- | 111-66-0 | AIHA |
75 ppm | 2000 |
|
| Pentaerythritol Triacrylate | 3524-68-3 | AIHA |
1 mg/m3 (DSEN) | — | 1999 |
| Pentafluoroethane, 1,1,1,2,2- | 354-33-6 | AIHA |
1000 ppm | 2009 |
|
| Pentafluoropropane, 1,1,1,3,3- | 460-73-1 | AIHA |
300 ppm | 2001 |
|
| Phosphono-1,2,4 butanetricarboxylic, 2-acid | 37971-36-1 | AIHA |
10 mg/m3 | 2006 |
|
| Picolines | 109-06-8, 108- 99-6, 108-89-4 |
AIHA |
2 ppm (skin) | 5 ppm (15-min, skin) |
1988 |
| Piperidine | 110-89-4 | AIHA |
1 ppm (skin) | — | 1996 |
| Polyethylene Glycols (MW > 200) | 25322-68-3 | AIHA |
10 mg/m3 | — | 2009 |
| Polypropylene Glycols | 25322-69-4 | AIHA |
10 mg/m3 | 1997 |
|
| Potassium Bromate | 7758-01-2 | AIHA |
0.1 mg/m3 | 2004 |
|
| Propargyl Bromide | 106-96-7 | AIHA |
0.1 ppm (skin) | — | 1997 |
| Propenoic Acid, isooctyl ester, 2- | 29590-42-9 | AIHA |
5 ppm | 2010 |
|
| Propionaldehyde | 123-38-6 | AIHA |
20 ppm | 2002 |
|
| Propylene Glycol | 57-55-6 | AIHA |
10 mg/m3 | 2004 |
|
| Propylene Glycol Monomethyl Ether Acetate | 108-65-6 | AIHA |
50 ppm | — | 2005 |
| Quinoline | 91-22-5 | AIHA |
0.001 ppm (skin) | 2006 |
|
| Sodium Chloroacetate | 3926-62-3 | OARS |
0.5 ppm (2.5 mg/m3 ) | 2016 |
|
| Sodium Hypochlorite | 7681-52-9 | AIHA |
2 mg/m3 (15 min) | 2010 |
|
| Tetrachloropyridine, 2,3,5,6- | 2402-79-1 | OARS |
5 mg/m3 | 2016 |
|
| Tetrachlorosilane | 10026-04-7 | AIHA |
1 ppm (ceiling) | 1999 |
|
| Tetraethylene Glycol Diacrylate | 17831-71-9 | AIHA |
1 mg/m3 (skin, DSEN) | 1981 |
|
| TetraethylenePentamine | 112-57-2 | AIHA |
5 mg/m3 (skin, DSEN) | — | 2004 |
| Tetrafluoroethane, 1,1,1,2- (HFC-134a) | 811-97-2 | AIHA |
1000 ppm | 2003 |
|
| Tetrafluoroethane, 1,1,2,2- (HFC-134) | 359-35-3 | OARS |
1000 ppm | 2018 |
|
| Tetrafluoroethane, 2-ChIoro-1,1,1,2- | 2837-89-0 | AIHA |
1000 ppm | — | 2005 |
| Tetrafluoropropene, (Z)-1-ChIoro-2,3,3,3- (HCFO-1224yd(Z)) |
111512-60-8 | OARS |
1000 ppm | — | 2017 |
| Tetrafluoropropene, 2,3,3,3,- (HFO-1234yf) | 754-12-1 | AIHA |
500 ppm | 2009 |
|
| Tetrafluoropropylene, 1,3,3,3- | 1645-83-6 | AIHA |
800 ppm | — | 2011 |
| Tetrahydrofurfuryl Alcohol | 97-99-4 | AIHA |
0.5 ppm (skin) | 1993 |
|
| Titanium Tetrachloride | 7550-45-0 | AIHA |
0.5 mg/m3 | 2009 |
|
| Toluene Diamine, 2,4- and mixed isomers | 95-80-7; 25376- 45-8 |
AIHA |
0.005 ppm (skin) | 2010 |
|
| Toluenesulfonyl Chloride, para- | 98-59-9 | AIHA |
5 mg/m3 (ceiling) | 2009 |
|
| trans-1-Chloro-3,3,3-trifluoropropylene (HCFO 1233zd(E)) |
102687-65-0 | OARS |
800 ppm | 2013 |
|
| Trichlorosilane | 10025-78-2 | AIHA |
0.5 ppm (ceiling) | 1998 |
|
| Triethoxysilane | 998-30-1 | AIHA |
0.05 ppm | 2000 |
|
| Triethylene Glycol Diacrylate | 1680-21-3 | AIHA |
1 mg/m3 (skin) | 1981 |
|
| Triethylenetetramine | 112-24-3 | AIHA |
1 ppm (skin) | 2009 |
|
| Triethylphosphate | 78-40-0 | AIHA |
7.45 mg/m3 | 2010 |
|
| TrifIuoro-2,2-Dichloroethane, 1,1,1- | 306-83-2 | AIHA |
50 ppm | 2001 |
|
| Trifluoroethane, 1,1,1- | 420-46-2 | AIHA |
1000 ppm | 1996 |
|
| Trifluoroethanol, 2,2,2- | 75-89-8 | OARS |
0.3 ppm | 2016 |
|
| Trifluoroiodomethane (CF3I) | 2314-97-8 | OARS |
500 ppm | 1500 ppm | 2018 |
| Trimethoxysilane | 2487-90-3 | AIHA |
0.05 ppm | 2010 |
|
| Trimethylamine | 75-50-3 | AIHA |
1 ppm | 2005 |
|
| Trimethylchlorosilane | 75-77-4 | AIHA |
5 ppm (ceiling) | 2001 |
|
| Trimethylolpropane Triacrylate | 15625-89-5 | AIHA |
1 mg/m3 (skin) | 1981 |
|
| Trimethylolpropane Trimethacrylate | 3290-92-4 | AIHA |
1 mg/m3 (skin) | 1981 |
|
| Trisodium Phosphate | 7601-54-9 | AIHA |
5 mg/m3 (15 min) | 2009 |
|
| Urea | 57-13-6 | AIHA |
10 mg/m3 | 2007 |
|
| Vanillin | 121-33-5 | AIHA |
10 mg/m3 | 2009 |
|
| Vinylcyclohexene | 100-40-3 | AIHA |
1 ppm | 2009 |
|
| Vinyltrichlorosilane | 75-94-5 | AIHA |
— | 1 ppm (ceiling) | 2002 |
