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Michigan Administrative Code (Last Updated: November 16, 2016) |
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Department LR. Licensing and Regulatory Affairs |
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MIOSHA |
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Chapter Part 601. Air Contaminants for Construction |
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Part 601. AIR CONTAMINANTS FOR CONSTRUCTION |
Section 325.60160. Maximum allowable concentrations for substances; Q to Z.
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Rule 10. Table 6. Substances Q to Z
TABLE 6
Substance
MAC/Ceiling/STEL
ppm
mg/m3
Quinone
0.1
0.4
S
RDX
---
1.5
Rhodium, metal fume, dusts, and insoluble compounds (as Rh)
---
0.1
Rhodium, soluble compounds (as Rh)
---
0.001
Ronnel
---
10
Rotenone (commercial)
---
5
Rouge
Inert dust
Selenium compounds (as Se)
---
0.2
Selenium hexafluoride
0.05
0.4
Silicon carbide
Inert dust
Silver, metal and soluble compounds
---
0.01
S
Sodium fluoroacetate (1080)
---
0.05
Sodium hydroxide
---
2
Starch
Inert dust
Stibine
0.1
0.5
Stoddard solvent
200
1,150
Strychnine
---
0.15
C
Styrene monomer (phenylethylene)
100
420
Sucrose
Inert dust
Sulfur dioxide
5
13
Sulfur hexafluoride
1,000
6,000
Sulfuric acid
---
1
Sulfur monochloride
1
6
Sulfur pentafluoride
0.025
0.25
Sulfuryl fluoride
5
20
Systox, see Demeton®
2,4,5T
---
10
Tantalum
---
5
S
TEDP
---
0.2
Teflon® decomposition products (maintain minimal air concentration)
Tellurium
---
0.1
Tellurium hexafluoride
0.02
0.2
S
TEPP
---
0.05
C
Terphenyls
1
9
1,1,1,2-Tetrachloro-2,2-difluoroethane
500
4,170
1,1,2,2-Tetrachloro-1,2-difluoroethane
500
4,170
S
1,1,2,2-Tetrachloroethane
5
35
Tetrachloroethylene, see Perchloroethylene
Tetrachloromethane, see Carbon tetrachloride
S
Tetrachloronaphthalene
---
2
S
Tetraethyl lead (as Pb)
---
0.075a
Tetrahydrofuran
200
590
S
Tetramethyl lead (TML) (as Pb)
---
0.150
S
Tetramethyl succinonitrile
0.5
3
Tetranitromethane
1
8
S
Tetryl (2,4,6-trinitrophenylmethyl-nitramine)
---
1.5
S
Thallium, soluble compounds (as Tl)
---
0.1
Thiram
---
5
Tin
(inorganic compounds, except SnH4 and SnO2) (organic compounds)
---
---
2
0.1
Tin oxide
Inert particulate
Titanium dioxide
Inert particulate
Toluene (toluol)
200
750
C
Toluene-2,4-diisocyanate
0.02
0.14
S
o-Toluidine
5
22
Toxaphene, see Chlorinated camphene
Tributyl phosphate
---
5
1,1,1-Trichloroethane, see Methyl chloroform
S
1,1,2-Trichloroethane
10
45
Trichloroethylene
100
535
Trichloromethane, see Chloroform
S
Trichloronaphthalene
---
5
1,2,3-Trichloropropane
50
300
1,1,2-Trichloro-1,2,2-trifluoroethane
1,000
7,600
Triethylamine
25
100
Trifluoromonobromomethane
1,000
6,100
Trimethyl benzene
25
120
2,4,6-Trinitrophenol, see Picric acid
2,4,6-Trinitrophenylmethylnitramine, see Tetryl
S
Trinitrotoluene
---
1.5
Triorthocresyl phosphate
---
0.1
Triphenyl phosphate
---
3
Tungsten and compounds (as W) Insoluble
Soluble
---
---
5
1
Turpentine
100
560
Uranium (natural) soluble & insoluble compounds (as U)
---
0.2
C
Vanadium (V2O5 dust) (V2O5 fume)
---
---
0.5
0.1
Vinyl benzene, see Styrene
C
Vinyl chloride, see OH Part 302, R 325.51401 to R 325.51414*
Vinyl cyanide, see Acrylonitrile
Vinyl toluene
100
480
Warfarin
---
0.1
Xylene (xylol)
100
435
S
Xylidine
5
25
Yttrium
---
1
Zinc chloride fume
---
1
Zinc oxide fume
---
5
Zirconium compounds (as Zr)
---
5
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)
a The 1970 ACGIH standard for Tetraethyl lead is 0.100 mg/m3.
* Caution--these rules contain extensive requirements for exposure to these substances.
History: 2002 AACS; 2013 AACS.