Mich. Admin. Code R. 325.60160
Rule 10. Table 6 for substances Q to Z, are as follows:
TABLE 6 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; Q TO Z | ||||
SUBSTANCE | CAS No.1 | MAC/Ceiling/STEL | ||
ppm | mg/m3 | |||
Quinone | 106-51-4 | 0.1 | 0.4 | |
S | RDX | 121-82-4 | --- | 1.5 |
Rhodium | ||||
metal fume, dusts, and insoluble compounds (as Rh) | 7440-16-6 | --- | 0.1 | |
soluble compounds (as Rh) | --- | 0.001 | ||
Ronnel | 299-84-3 | --- | 10 | |
Rotenone (commercial) | 83-79-4 | --- | 5 | |
Rouge | Inert dust | |||
Selenium compounds (as Se) | 7782-49-2 | --- | 0.2 | |
Selenium hexafluoride | 7783-79-1 | 0.05 | 0.4 | |
Silica, crystalline, respirable dust** | See OH 690 Silica in Construction | |||
Cristobalite | 14464-46-1 | |||
Quartz | 14808-60-7 | |||
Tripoli ( as quartz) | 1317-95-9 | |||
Trydimite | 15468-32-3 | |||
Silicon carbide | 409-21-2 | Inert dust | ||
Silver, metal and soluble compounds | 7440-22-4 | --- | 0.01 | |
S | Sodium fluoroacetate (1080) | 62-74-8 | --- | 0.05 |
Sodium hydroxide | 1310-73-2 | --- | 2 | |
Starch | 9005-25-8 | Inert dust | ||
Stibine | 7803-52-3 | 0.1 | 0.5 | |
Stoddard solvent | 8052-41-3 | 200 | 1,150 | |
Strychnine | 57-24-9 | --- | 0.15 | |
C | Styrene monomer (phenylethylene) | 100-42-5 | 100 | 420 |
Sucrose | 57-50-1 | Inert dust | ||
Sulfur dioxide | 7446-09-5 | 5 | 13 | |
Sulfur hexafluoride | 2551-62-4 | 1,000 | 6,000 | |
Sulfuric acid | 7664-93-9 | --- | 1 | |
Sulfur monochloride | 10025-67-9 | 1 | 6 | |
Sulfur pentafluoride | 5714-22-7 | 0.025 | 0.25 | |
Sulfuryl fluoride | 2699-79-8 | 5 | 20 | |
Systox | See Demeton® | |||
2,4,5T | 93-76-5 | --- | 10 | |
Tantalum | 7440-25-7 | --- | 5 | |
S | TEDP | 3689-24-5 | --- | 0.2 |
Teflon decomposition products (maintain minimal air concentration) | ||||
Tellurium | 13494-80-9 | --- | 0.1 | |
Tellurium hexafluoride | 7783-80-4 | 0.02 | 0.2 | |
S | TEPP | 107-49-3 | --- | 0.05 |
C | Terphenyls | 26140-60-3 | 1 | 9 |
1,1,1,2-Tetrachloro-2,2-difluoroethane | 76-11-9 | 500 | 4,170 | |
1,1,2,2-Tetrachloro-1,2-difluoroethane | 76-12-0 | 500 | 4,170 | |
S | 1,1,2,2-Tetrachloroethane | 79-34-5 | 5 | 35 |
Tetrachloroethylene | See Perchloroethylene | |||
Tetrachloromethane | See Carbon tetrachloride | |||
S | Tetrachloronaphthalene | 1335-88-2 | --- | 2 |
S | Tetraethyl lead (as Pb) | 78-00-2 | --- | 0.075a |
Tetrahydrofuran | 109-99-9 | 200 | 590 | |
S | Tetramethyl lead (TML)(as Pb) | 75-74-1 | --- | 0.150 |
S | Tetramethyl succinonitrile | 3333-52-6 | 0.5 | 3 |
Tetranitromethane | 509-14-8 | 1 | 8 | |
S | Tetryl (2,4,6-trinitrophenylmethyl-nitramine) | 479-45-8 | --- | 1.5 |
S | Thallium, soluble compounds (as Tl) | 7440-28-0 | --- | 0.1 |
Thiram | 137-26-8 | --- | 5 | |
Tin | ||||
Inorganic compounds, except SnH4 and SnO2 | 7440-31-5 | --- | 2 | |
Organic compounds | 7440-31-5 | --- | 0.1 | |
Oxide | 21651-19-4 | Inert particulate | ||
Titanium dioxide | 13463-67-7 | Inert particulate | ||
Toluene (toluol) | 108-88-3 | 200 | 750 | |
C | Toluene-2,4-diisocyanate | 584-84-9 | 0.02 | 0.14 |
S | o-Toluidine | 95-53-4 | 5 | 22 |
Toxaphene | See Chlorinated camphene | |||
Tributyl phosphate | 126-73-8 | --- | 5 | |
1,1,1-Trichloroethane | See Methyl chloroform | |||
S | 1,1,2-Trichloroethane | 79-00-5 | 10 | 45 |
Trichloroethylene | 79-01-6 | 100 | 535 | |
Trichloromethane | See Chloroform | |||
S | Trichloronaphthalene | 1321-65-9 | --- | 5 |
1,2,3-Trichloropropane | 96-18-4 | 50 | 300 | |
1,1,2-Trichloro-1,2,2-trifluoroethane | 76-13-1 | 1,000 | 7,600 | |
Triethylamine | 121-44-8 | 25 | 100 | |
Trifluoromonobromomethane | 75-63-8 | 1,000 | 6,100 | |
Trimethyl benzene | 25551-13-7 | 25 | 120 | |
2,4,6-Trinitrophenol | See Picric acid | |||
2,4,6-Trinitrophenylmethylnitramine | See Tetryl | |||
S | Trinitrotoluene | 118-96-7 | --- | 1.5 |
Triorthocresyl phosphate | 78-30-8 | --- | 0.1 | |
Triphenyl phosphate | 115-86-6 | --- | 3 | |
Tungsten and compounds (as W) | ||||
Insoluble | 7440-33-7 | --- | 5 | |
Soluble | --- | 1 | ||
Turpentine | 8006-64-2 | 100 | 560 | |
Uranium (natural) soluble and insoluble compounds (as U) | 7440-61-1 | --- | 0.2 | |
C | Vanadium | |||
(V2O5 dust) | 1314-62-1 | --- | 0.5 | |
(V2O5 fume) | --- | 0.1 | ||
Vinyl benzene | See Styrene | |||
C | Vinyl chloride | See GI 302. Vinyl Chloride* | ||
Vinyl cyanide | See Acrylonitrile | |||
Vinyl toluene | 25013-15-4 | 100 | 480 | |
Warfarin | 81-81-2 | --- | 0.1 | |
Xylene (xylol) | 1330-20-7 | 100 | 435 | |
S | Xylidine | 1300-73-8 | 5 | 25 |
Yttrium | 7440-65-5 | --- | 1 | |
Zinc chloride fume | 7646-85-7 | --- | 1 | |
Zinc oxide fume | 1314-13-2 | --- | 5 | |
Zirconium compounds (as Zr) | 7440-67-7 | --- | 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) | |||
a | The 1970 ACGIH standard for Tetraethyl lead is 0.100 mg/m3. | |||
* | Caution--these rules contain extensive requirements for exposure to these substances. | |||
** | See Table 7 for the exposure limit for any operations or sectors where the exposure limit in OH 690. "Silica in Construction" is stayed or is otherwise not in effect. | |||
All MIOSHA Standards shown in this table are referenced in R 325.60151. | ||||
Mich. Admin. Code R. 325.60160