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 TABLE 1 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; A AND B SUBSTANCE CAS No.1 MAC/Ceiling/STEL ppm mg/m3 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 STEL MAC ppm mg/m3 mg/m3 Beryllium and beryllium compounds (as Be) 7440-41-7 --- 0.0002 (0.2 μg/m3) STEL Beryllium and beryllium compounds (as Be) 7440-41-7 0.002 (2.0 μg/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 TABLE 1 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; A AND B SUBSTANCE CAS No.1 MAC/Ceiling/STEL ppm mg/m3 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.