R 325.60157 Maximum allowable concentrations for substances; E to H.

Rule 7. Table 3 for substances E to H, are as follows: TABLE 3 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; E TO H SUBSTANCE CAS No.1 MAC/Ceiling/STEL ppm mg/m3 Emery Inert dust S Endosulfan (Thiodan®) 115-29-7 --- 0.1 S Endrin 72-20-8 --- 0.1 S Epichlorohydrin 106-89-8 5 19 S EPN 2104-64-5 --- 0.5 1,2-Epoxypropane See Propylene oxide TABLE 3 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; E TO H SUBSTANCE CAS No.1 MAC/Ceiling/STEL ppm mg/m3 2,3-Epoxy-1-propanol See Glycidol Ethane Inert gas Ethanethiol See Ethyl mercaptan Ethanolamine 141-43-5 3 6 S 2-Ethoxyethanol 110-80-5 200 740 S 2-Ethoxyethyl acetate (cellosolve acetate) 111-15-9 100 540 Ethyl acetate 141-78-6 400 1,400 S Ethyl acrylate 140-88-5 25 100 Ethyl alcohol (ethanol) 64-17-5 1,000 1,900 Ethylamine 75-04-7 10 18 Ethyl sec-amyl ketone (5-methyl-3-heptanone) 541-85-5 25 130 Ethyl benzene 100-41-4 100 435 Ethyl bromide 74-96-4 200 890 Ethyl butyl ketone (3-heptanone) 106-35-4 50 230 Ethyl chloride 75-00-3 1,000 2,600 Ethyl ether 60-29-7 400 1,200 Ethyl formate 109-94-4 100 300 Ethyl mercaptan 75-08-1 0.5 1 Ethyl silicate 78-10-4 100 850 Ethylene Inert gas S Ethylene chlorohydrin 107-07-3 5 16 Ethylenediamine 107-15-3 10 25 Ethylene dibromide See 1,2-Dibromoethane Ethylene dichloride See 1,2-Dichloroethane S, C Ethylene glycol dinitrate 628-96-6 0.2 1 Ethylene glycol monomethyl ether acetate See Methyl cellosolve acetate S Ethyleneimine 151-56-4 0.5 1 Ethylene oxide See GI & CS 304. Ethylene Oxide* Ethylidine chloride See 1,1-Dichloroethane S N-Ethylmorpholine 100-74-3 20 94 Ferbam 14484-64-1 --- 15 TABLE 3 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; E TO H SUBSTANCE CAS No.1 MAC/Ceiling/STEL ppm mg/m3 Ferrovanadium dust 12604-58-9 --- 1 Fibrous glass Inert dust Fluoride (as F) Varies with compound --- 2.5 Fluorine 7782-41-4 0.1 0.2 Fluorotrichloromethane 75-69-4 1,000 5,600 C Formaldehyde See GI & CS 306. Formaldehyde* Formic acid 64-18-6 5 9 S Furfural 98-01-1 5 20 Furfuryl alcohol 98-00-0 50 200 Gasoline (limits will be based on aromatic hydrocarbons in mixture) Glycerine mist Inert mist Glycidol (2,3-epoxy-1-propanol) 556-52-5 50 150 Glycol monoethyl ether See 2-Ethoxyethanol Graphite (synthetic) Inert dust Guthion® See Azinphos-methyl Gypsum 13397-24-5 Inert dust Hafnium 7440-58-6 --- 0.5 Helium Inert gas S Heptachlor 76-44-8 --- 0.5 Heptane (n-heptane) 142-82-5 500 2,000 S Hexachloroethane 67-72-1 1 10 S Hexachloronaphthalene 1335-87-1 --- 0.2 Hexane (n-hexane) 110-54-3 500 1,800 2-Hexanone 591-78-6 100 410 Hexone (methyl isobutyl ketone) 108-10-1 100 410 sec-Hexyl acetate 108-84-9 50 300 S Hydrazine 302-01-2 1 1.3 Hydrogen Inert gas Hydrogen bromide 10035-10-6 3 10 C Hydrogen chloride 7647-01-0 5 7 TABLE 3 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; E TO H SUBSTANCE CAS No.1 MAC/Ceiling/STEL ppm mg/m3 S Hydrogen cyanide 74-90-8 10 11 Hydrogen fluoride 7664-39-3 3 2 Hydrogen peroxide 7722-84-1 1 1.4 Hydrogen selenide 7783-07-5 0.05 0.2 Hydrogen sulfide 7783-06-4 10 15 Hydroquinone 123-31-9 --- 2 1 The CAS number is for information only. Enforcement is based on the substance name. For an entry covering more than 1 metal compound measured as the metal, the CAS number for the metal is given - not the CAS number for the individual compounds. A See R 325.60154(2)(a). C B See R 325.60154(2)(b). S C See R 325.60154(2)(c). STEL See R 325.60154(2)(d). * Caution--these rules contain extensive requirements for exposure to these substances. All MIOSHA Standards shown in is this table are referenced in R 325.60151.