Mich. Admin. Code R. 325.60156 - Maximum allowable concentrations for substances; C and D

Rule 6. Table 2 for substances C and D, are as follows:

TABLE 2

MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; C AND D

SUBSTANCE

CAS No.1

MAC/Ceiling/STEL

ppm

mg/m3

Cadmium and cadmium compounds

See CS 609. Cadmium in Construction*

Calcium arsenate

---

1

Calcium carbonate

1317-65-3

Inert dust

Calcium oxide

1305-78-8

---

5

Camphor (synthetic)

76-22-2

2

---

Carbaryl (Sevin)

63-25-2

---

5

Carbon black

1333-86-4

---

3.5

Carbon dioxide

124-38-9

5,000

9,000

S

Carbon disulfide

75-15-0

20

60

Carbon monoxide

630-08-0

50

55

S, C

Carbon tetrachloride

56-23-5

10

65

Cellulose (paper fiber)

9004-34-6

Inert dust

S

Chlordane

57-74-9

---

0.5

S

Chlorinated camphene

8001-35-2

---

0.5

Chlorinated diphenyl oxide

55720-99-5 or 31242-93-0

---

0.5

Chlorine

7782-50-5

1

3

Chlorine dioxide

10049-04-4

0.1

0.3

C

Chlorine trifluoride

7790-91-2

0.1

0.4

C

Chloroacetaldehyde

107-20-0

1

3

alpha-Chloroacetophenone (Phenacyl chloride)

532-27-4

0.05

0.3

Chlorobenzene (mono chlorobenzene)

108-90-7

75

350

o-Chlorobenzylidene malononitrile (OCBM)

2698-41-1

0.05

0.4

Chlorobromomethane

74-97-5

200

1,050

2-Chloro-1,3-butadiene

See Chloroprene

Chlorodiphenyl (42% Chlorine)

53469-21-9

---

1

Chlorodiphenyl (54% Chlorine)

11097-69-1

---

0.5

1-Chloro-2,3-epoxy propane

See Epichlorohydrin

2-Chloroethanol

See Ethylene chlorohydrin

Chloroethylene

See Vinyl chloride

C

Chloroform (Trichloromethane)

67-66-3

50

240

1-Chloro-1-nitropropane

600-25-9

20

100

Chloropicrin

76-06-2

0.1

0.7

Chloroprene (2-chloro-1,3-butadiene)

126-99-8

25

90

Chromic acid and chromates (as Cr03)

See OH 604. Chromium (VI) in Construction*, ***

Chromium (VI) compounds

See OH 604. Chromium (VI) in Construction*, ***

Chromium

sol. chromic and chromous salts (as Cr)

Varies with compound

---

0.5

Metal and insol. Salts

7440-47-3

---

1

Coal tar pitch volatiles (benzene soluble fraction: anthracene, BaP, phenanthrene, acridine, chrysene, pyrene)

65996-93-2

---

0.2

Cobalt, metal fume and dust

7440-48-4

0.1

Coke oven emissions

See GI & CS 314. Coke Oven Emissions*

Copper

Fume

7440-50-8

---

0.1

Dusts and mists

---

1

Corundum (Al203)

Inert dust

Cotton dust (raw)

-

---

1

Crag herbicide

136-78-7

---

15

S

Cresol (all isomers)

1319-77-3

5

22

Crotonaldehyde

123-73-9 4170-30-3

2

6

S

Cumene

98-82-8

50

245

S

Cyanide (as CN)

Varies with compound

---

5

Cyanogen

460-19-5

10

---

Cyclohexane

110-82-7

300

1,050

Cyclohexanol

108-93-0

50

200

Cyclohexanone

108-94-1

50

200

Cyclohexene

110-83-8

300

1,015

Cyclopentadiene

542-92-7

75

200

2,4-D

94-75-7

---

10

S

DDT (Dichlorodiphenyl-trichloroethane)

50-29-3

---

1

DDVP

See Dichlorvos

S

Decaborane

17702-41-9

0.05

0.3

S

Demeton

8065-48-3

---

0.1

Diacetone alcohol (4-hydroxy-4-methyl-2-pentanone)

123-42-2

50

240

1,2-Diainoethane

See Ethylenediamine

Diazomethane

334-88-3

0.2

0.4

Diborane

19287-45-7

0.1

0.1

S, C

1,2-Dibromoethane (ethylene dibromide)

106-93-4

25

190

Dibutyl phosphate

107-66-4

1

5

Dibutyl phthalate

84-74-2

---

5

C

Dichloroacetylene

7572-29-4

0.1

0.4

C

o-Dichlorobenzene

95-50-1

50

300

p-Dichlorobenzene

106-46-7

75

450

Dichlorodifluoromethane

75-71-8

1,000

4,950

1,3-Dichloro-5, 5-dimethyl hydantoin

118-52-5

---

0.2

1,1-Dichloroethane

75-34-3

100

400

1,2-Dichloroethane

107-06-2

50

200

1,2-Dichloroethylene

540-59-0

200

790

S, C

Dichloroethyl ether

111-44-4

15

90

Dichloromethane

See Methylene chloride

Dichloromonofluoromethane

75-69-4

1,000

4,200

C

1,1-Dichloro-1-nitroethane

594-72-9

10

60

1,2-Dichloropropane

See Propylene dichloride

Dichlorotetrafluoroethane

76-14-2

1,000

7,000

S

Dichlorvos (DDVP)

62-73-7

---

1

S

Dieldrin

60-57-1

---

0.25

Diethylamine

109-89-7

25

75

S

Diethylamino, ethanol

100-37-8

10

50

S, C

Diethylene triamine

111-40-0

10

42

Diethyl ether

See Ethyl ether

Difluorodibromomethane

75-61-6

100

860

C

Diglycidyl ether (DGE)

2238-07-5

0.5

2.8

Dihydroxybenzene

See Hydroquinone

Diisobutyl ketone

108-83-8

50

290

S

Diisopropylamine

108-18-9

5

20

Dimethoxymethane

See Methylal

S

Dimethyl acetamide

127-19-5

10

35

Dimethylamine

124-40-3

10

18

Dimethylaminobenzene

See Xylidene

S

Dimethylaniline (N-dimethylaniline)

121-69-7

5

25

Dimethylbenzene

See Xylene

Dimethyl-1, 2-dibromo- 2, 2-dichloroethyl phosphate (Dibrom)

300-76-5

---

3

S

Dimethylformamide

68-12-2

10

30

2,6-Dimethylheptanone

See Diisobutyl ketone

S

1,1-Dimethylhydrazine

57-14-7

0.5

1

Dimethylphthalate

131-11-3

---

5

S

Dimethyl sulfate

77-78-1

1

5

S

Dinitrobenzene (all isomers)

99-65-0

528-29-0

100-25-4

---

1

S

Dinitro-o-cresol

534-52-1

---

0.2

S

Dinitrotoluene

25321-14-6

---

1.5

S

Dioxane (diethylene dioxide)

123-91-1

100

360

Diphenyl

92-52-4

0.2

1

Diphenylamine

122-39-4

---

10

Diphenylmethane diisocyanate

See Methylene bisphenyl isocyanate (MDI)

S

Dipropylene glycol methyl ether

34590-94-8

100

600

Di-sec-octyl phthalate (di-2-ethylhexylphthalate)

117-81-7

---

5

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

See R 325.60154(2)(b).

S

See R 325.60154(2)(c).

STEL

See R 325.60154(2)(d).

*

Caution--these rules contain extensive requirements for exposure to these substances.

***

If the exposure limit in OH 604. Chromium (VI) in Construction is stayed or is otherwise not in effect, the exposure limit is 0.1 mg/m3 for chromic acid and chromates (Cr03) as an 8-hour TWA.

All MIOSHA Standards shown in this table are referenced in R 325.60151.

Notes

Mich. Admin. Code R. 325.60156
2002 AACS; 2013 AACS; 2017 AACS; 2019 MR 18, Eff. 9/20/2019

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