Mich. Admin. Code R. 325.60155 - Maximum allowable concentrations for substances; A and B

Rule 5. Table 1 for substances A and B, are as follows:

TABLE 1 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; A AND B
SUBSTANCE		CAS No.1		MAC/Ceiling/STEL
				ppm	mg/m3
Abate	3383-96-8		---	15
Acetaldehyde	75-07-0		200	360
Acetic acid	64-19-7		10	25
Acetic anhydride	108-24-7		5	20
Acetone	67-64-1		1,000	2,400
Acetonitrile	75-05-8		40	70
Acetylene			Inert gas
Acetylene dichloride	See 1,2-Dichloroethylene
Acetylene tetrabromide	79-27-6		1	14
Acrolein	107-02-8		0.1	0.25
S	Acrylamide	79-06-1		---	0.3
S	Acrylonitrile	See GI & CS 307. Acrylonitrile*
S	Aldrin	309-00-2		---	0.25
S	Allyl alcohol	107-18-6		2	5
Allyl chloride	107-05-1		1	3
C	Allyl glycidyl ether (AGE)	106-92-3		10	45
Allyl propyl disulfide	2179-59-1		2	12
Alundum (Al203)			Inert dust
2-Aminoethanol	See Ethanolamine
2-Aminopyridine	504-29-0		0.5	2
Ammonia	7664-41-7		50	35
Ammonium sulfamate (amate)	7773-06-0		---	15
n-Amyl acetate	628-63-7		100	525
sec-Amyl acetate	626-38-0		125	650
S	Aniline	62-53-3		5	19
S	Anisidine (o- and p-isomers)	29191-52-4		---	0.5
Antimony and compounds (as Sb)	7440-36-0		---	0.5
ANTU (alpha naphthylthiourea)	86-88-4		---	0.3
Argon			Inert gas
Arsenic, inorganic compounds	See GI & CS 308. Inorganic Arsenic*
Arsenic, organic compounds (as As)	7440-38-2		---	0.5
Arsine	7784-42-1		0.05	0.2
S	Azinphos-methyl	86-50-0		---	0.2
Barium (soluble compounds)	7440-39-3		---	0.5
Benzene (benzol)	See GI & CS 311. Benzene*
A, S	Benzidine	92-87-5		---	---
p-Benzoquinone	See Quinone
Benzoyl peroxide	94-36-0		---	5
Benzyl chloride	100-44-7		1	5
			MAC/Ceiling/STEL
			ppm	STEL	MAC
				mg/m3	mg/m3
Beryllium and beryllium compounds (as Be)	7440-41-7	---	0.0002 (0.2 [MICRO]g/m3)
STEL	Beryllium and beryllium compounds (as Be)	7440-41-7	0.002 (2.0 [MICRO]g/m3)
Biphenyl	See Diphenyl
Bisphenol A	See Diglycidyl ether
	SUBSTANCE	CAS No.1		MAC/Ceiling/STEL
				ppm	mg/m3
Boron oxide	1303-86-2		---	15
Boron tribromide	10294-33-4		1	10
C	Boron trifluoride	7637-07-2		1	3
Bromine	7726-95-6		0.1	0.7
Bromine pentafluoride	7789-30-2		0.1	0.7
S	Bromoform	75-25-2		0.5	5
Butadiene (1,3-butadiene)	See OH 312. 1,3-Butadiene*
Butanethiol	See Butyl mercaptan
2-Butanone	78-93-3		200	590
S	2-Butoxy ethanol (butyl cellosolve)	111-76-2		50	240
Butyl acetate (n-butyl acetate)	123-86-4		150	710
sec-Butyl acetate	105-46-4		200	950
tert-Butyl acetate	540-88-5		200	950
Butyl alcohol	71-36-3		100	300
sec-Butyl alcohol	78-92-2		150	450
tert-Butyl alcohol	75-65-0		100	300
S, C	Butylamine	109-73-9		5	15
tert-Butyl chromate (as Cr+6)	See OH 604. Chromium (VI) in Construction*, **
n-Butyl glycidyl ether (BGE)	2426-08-6		50	270
Butyl mercaptan	109-79-5		0.5	1.5
p-tert-Butyltoluene	98-51-1		10	60
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 a ceiling of 0.1 mg/m3 and has an "S" notation.
All MIOSHA Standards shown in this table are referenced in R 325.60151.

Notes

Mich. Admin. Code R. 325.60155

2002 AACS; 2013 AACS; 2017 AACS; 2019 MR 18, Eff. 9/20/2019