R 325.60159 Maximum allowable concentrations for substances; N to P.

Rule 9. Table 5 for substances N to P, are as follows: TABLE 5 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; N TO P SUBSTANCE CAS No.1 MAC/Ceiling/STEL ppm mg/m3 Naphtha (coal tar) 8030-30-6 100 400 Naphtha (petroleum) (MAC will be based on aromatic hydrocarbons in mixture) TABLE 5 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; N TO P SUBSTANCE CAS No.1 MAC/Ceiling/STEL ppm mg/m3 Naphthalene 91-20-3 10 50 A beta-Naphthylamine 91-59-8 --- Neon Inert gas Nickel carbonyl 13463-39-3 0.001 0.007 Nickel, metal and soluble compounds (as Ni) 7440-02-0 --- 1 S Nicotine 54-11-5 --- 0.5 Nitric acid 7697-37-2 2 5 Nitric oxide 10102-43-9 25 30 S p-Nitroaniline 100-01-6 1 6 S Nitrobenzene 98-95-3 1 5 S p-Nitrochlorobenzene 100-00-5 --- 1 Nitroethane 79-24-3 100 310 Nitrogen Inert gas Nitrogen dioxide 10102-44-0 5 9 Nitrogen trifluoride 7783-54-2 10 29 S Nitroglycerin 55-63-0 0.2 2 Nitromethane 75-52-5 100 250 1-Nitropropane 108-03-2 25 90 2-Nitropropane 79-46-9 25 90 S, A N-Nitrosodimethylamine (dimethylnitroasomine) 62-75-9 --- S Nitrotoluene Varies with compound 5 30 Nitrotrichloromethane See Chloropicrin Nitrous oxide Inert gas S Octachloronaphthalene 2234-13-1 --- 0.1 Octane 111-65-9 400 1,900 Oil mist, particulate 8012-95-1 --- 5 Oil mist, vapor (MAC will be based on aromatic hydrocarbons in mixture) Osmium tetroxide 20816-12-0 --- 0.002 Oxalic acid 144-62-7 --- 1 TABLE 5 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; N TO P SUBSTANCE CAS No.1 MAC/Ceiling/STEL ppm mg/m3 Oxygen difluoride 7783-41-7 0.05 0.1 Ozone 10028-15-6 0.1 0.2 S Paraquat 1910-42-5 2074-50-2 4685-14-7 --- 0.5 S Parathion 56-38-2 --- 0.1 Pentaborane 19624-22-7 0.005 0.01 S Pentachloronaphthalene 1321-64-8 --- 0.5 S Pentachlorophenol 87-86-5 --- 0.5 Pentaerythritol 115-77-5 Inert particulate Pentane 109-66-0 500 1,500 2-Pentanone 107-87-9 200 700 Perchloroethylene 127-18-4 100 670 Perchloromethyl mercaptan 594-42-3 0.1 0.8 Perchloryl fluoride 7616-94-6 3 13.5 Petroleum distillates (naphtha) (MAC will be based on aromatic hydrocarbons in mixture) S Phenol 108-95-2 5 19 S p-Phenylenediamine 101-84-8 --- 0.1 Phenyl ether (vapor) – 1 7 Phenyl ether-biphenyl mixture (vapor) 8004-13-5 1 7 Phenylethylene See Styrene Phenyl glycidyl ether (PGE) 122-60-1 10 60 S Phenylhydrazine 100-63-0 5 22 S Phosdrin (Mevinphos®) 7786-34-7 --- 0.1 Phosgene (carbonyl chloride) 75-44-5 0.1 0.4 Phosphine 7803-51-2 0.3 0.4 Phosphoric acid 7664-38-2 --- 1 Phosphorus (yellow) 7723-14-0 --- 0.1 Phosphorus pentachloride 10026-13-8 --- 1 Phosphorus pentasulfide 1314-80-3 --- 1 Phosphorus trichloride 7719-12-2 0.5 3 TABLE 5 MAXIMUM ALLOWABLE CONCENTRATIONS FOR SUBSTANCES; N TO P SUBSTANCE CAS No.1 MAC/Ceiling/STEL ppm mg/m3 Phthalic anhydride 85-44-9 2 12 S Picric acid 88-89-1 --- 0.1 Pival® (2-pivalyl-1,3-indandione) 83-26-1 --- 0.1 Plaster of Paris 26499-65-0 Inert dust Platinum, soluble salts (as Pt) 7440-06-4 --- 0.002 Polytetrafluoroethylene decomposition products See Teflon® decomposition products Propane 74-98-6 Inert gas S Propargyl alcohol 107-19-7 1 --- A beta-Propiolactone 57-57-8 --- n-Propyl acetate 109-60-4 200 840 Propyl alcohol 71-23-8 200 500 n-Propyl nitrate 627-13-4 25 110 Propylene dichloride 78-87-5 75 350 S Propylene imine 75-55-8 2 5 Propylene oxide 75-56-9 100 240 Propyne See Methyl acetylene Pyrethrum 8003-34-7 --- 5 Pyridine 110-86-1 5 15 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 B See R 325.60154(2)(b). S C See R 325.60154(2)(c). STEL See R 325.60154(2)(d). All MIOSHA Standards shown in this table are referenced in R 325.60151.