Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Occupational Health Standards › Part 601 - AIR CONTAMINANTS FOR CONSTRUCTION › Section R. 325.60157 - Maximum allowable concentrations for substances; E to H

Current through Vol. 24-12, July 15, 2024
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
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
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
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.