American Petroleum Institute Petroleum Refinery Process Stream Additions CasNo Substance Definition Caveat 129813-66-7 Alkanes, C10-13 68551-17-7 Alkanes, C10-13-iso- 93924-07-3 Alkanes, C10-14 68551-18-8 Alkanes, C10-14-iso- 329909-27-5 Alkanes, C10-15-iso-, cyclic and linear 73138-29-1 Alkanes, C10-18 289711-49-5 Alkanes, C10-24 289711-48-4 Alkanes, C10-24-branched 129813-67-8 Alkanes, C12-14 68551-19-9 Alkanes, C12-14-iso- 68551-20-2 Alkanes, C13-16-iso- 90622-46-1 Alkanes, C14-16 74664-93-0 Alkanes, C14-30 70024-92-9 Alkanes, C7-8-iso- 68551-15-5 Alkanes, C8-10-iso- 68551-16-6 Alkanes, C9-11-iso- 68990-23-8 , C12-26 .alpha.-, sulfated 93762-80-2 Alkenes, C15-18 68603-35-0 Alkenes, C18-24 .alpha.-, bisulfited 72162-34-6 Alkenes, C18-24 .alpha.-, sulfurized 93924-10-8 Alkenes, C20-24 .alpha.- 93924-11-9 Alkenes, C24-28 .alpha.- 131459-42-2 Alkenes, C24-54-branched and linear .alpha.- 68409-73-4 Aromatic hydrocarbons, biphenyl-rich A complex combination of hydrocarbons produced by the Substance found at hydrodealkylation and distillation of . It consists refineries, but also may be predominantly of aromatic hydrocarbons having a carbon number produced in separate C6 or greater, primarily biphenyl, and boiling in the range of petrochemical approximately 79.degree.C to 398.degree.C (175.degree.F to manufacturing facilities. 750.degree.F). 68989-41-3 Aromatic hydrocarbons, biphenyl-rich, The complex combination of hydrocarbons obtained from a Substance found at thermal hydrodealkylation residues thermal hydrodealkylation process. It consists predominantly of refineries, but also may be aromatic hydrocarbons, primarily biphenyl, and boiling produced in separate approximately above 110.degree.C (230.degree.F). petrochemical manufacturing facilities.

1 of 10 February 25, 2004 American Petroleum Institute Petroleum Refinery Process Stream Additions CasNo Substance Definition Caveat 68333-90-4 Aromatic hydrocarbons, polycyclic, The complex residuum from the distillation of products from the Substance found at alkylnaphthalene-toluene thermal thermal hydrodealkylation of alkylnaphthalene and toluene. It refineries, but also may be hydrodealkylation distn. residues consists predominantly of bi- and polynuclear aromatic produced in separate hydrocarbons such as naphthalenes, biphenyl, fluorene and petrochemical phenanthrene. manufacturing facilities. 68201-32-1 Asphalt, sulfonated, sodium salt 68936-98-1 , (1-methylethyl)-, distn. residues The complex combination of hydrocarbons produced by the Substance found at distillation of products from cumene manufacturing process. It refineries, but also may be consists primarily of diisopropylbenzene with various small produced in separate amounts of C4 substituted and heavier non-aromatic petrochemical hydrocarbons. manufacturing facilities. 68936-99-2 Benzene, (1-methylethyl)-, distn. residues, benzene-enriched 67774-74-7 Benzene, C10-13- derivs. 102783-85-7 Benzene, C10-14-alkyl derivs., sulfonated

125025-88-9 Benzene, C14-16-alkyl derivs., distn. residues 115733-08-9 Benzene, C14-24-branched and linear alkyl derivs. 70356-32-0 Benzene, C14-26-alkyl derivs. 68855-24-3 Benzene, C14-30-alkyl derivs. 68987-40-6 Benzene, di-C10-14-alkyl derivs., distn. The final cut residuum boiling at approximately 503.degree.C residues (938.degree.F). 146865-37-4 Benzene, di-C10-18-alkyl derivs. 94094-93-6 Benzene, mono-C10-13-alkyl derivs., Heavy boiling portions that are obtained during the distillation of fractionation bottoms, heavy ends the residues from the distillative processing of mono C10-13 alkylbenzenes with a boiling point greater than 350.degree.C (662.degree.F). 148520-81-4 Benzene, mono-C10-13-alkyl derivs., fractionation bottoms, heavy ends, sulfonated 129813-62-3 Benzene, mono-C10-13-alkyl derivs., Light boiling portions that are obtained during the distillation of the fractionation bottoms, light ends fractionation bottoms from the processing of C10-13 alkylbenzenes.

2 of 10 February 25, 2004 American Petroleum Institute Petroleum Refinery Process Stream Additions CasNo Substance Definition Caveat 85117-41-5 Benzene, mono-C10-14-alkyl derivs., A complex residue of linear C10-14 alkylbenzenes with a boiling fractionation bottoms range greater than 330.degree.C (626.degree.F), consisting predominantly of diphenylalkanes, dialkylbenzenes, and diphenyldialkanes. 85117-43-7 Benzene, mono-C10-14-alkyl derivs., Heavy boiling fraction obtained during the distillation of the fractionation bottoms, heavy ends residues from the distillative processing of monoC10- 14alkylbenzenes. 129813-63-4 Benzene, mono-C10-14-alkyl derivs., Light boiling fractions that are obtained during the distillation of fractionation bottoms, light ends monoC10-14 alkylbenzene fractionation bottoms. 151911-58-9 Benzene, mono-C12-13-branched alkyl The bottoms from fractionation boiling approximately above derivs., fractionation bottoms 338.degree. (640.degree.F). 151911-60-3 Benzene, mono-C12-13-branched alkyl The heavy ends of fractionation bottoms boiling approximately derivs., fractionation bottoms, heavy ends above 382.degree. (720.degree.F).

151911-59-0 Benzene, mono-C12-13-branched alkyl The light ends from fractionation bottoms boiling in the range of derivs., fractionation bottoms, light ends approximately 338.degree.C to 382.degree.C (640.degree.F to 720.degree.F). 129813-59-8 Benzene, mono-C12-14-alkyl derivs. 129813-60-1 Benzene, mono-C14-16-alkyl derivs. 129813-61-2 Benzene, mono-C14-16-alkyl derivs., Distillation residues obtained during the distillation of mono-C14- fractionation bottoms 16 alkyl benzenes. 156105-29-2 Benzene, mono-C20-24-alkyl derivs. 68920-58-1 Clarified oils, petroleum, catalytic cracked, reaction products with TDI 111163-74-7 Distillates, petroleum, catalytic reformer fractionator residue, lowboiling, sulfonated, sodium salts 221120-39-4 Distillates, petroleum, cracked steam- A complex combination of hydrocarbons produced by cracking a cracked, C5-12 fraction fraction of steam-cracked distillates. It consists of alicyclic and aromatic hydrocarbons having carbon numbers predominantly in the range of C5 through C12 and boiling in the range of approximately 82 .degree.C to 260 .degree.C (180 .degree.F to 500 .degree.F). 68814-88-0 Distillates, petroleum, heavy naphthenic, sulfurized

3 of 10 February 25, 2004 American Petroleum Institute Petroleum Refinery Process Stream Additions CasNo Substance Definition Caveat 100815-94-9 Distillates, petroleum, heavy thermal cracked, polymd. 88526-47-0 Distillates, petroleum, heavy thermal cracked, polymd., hydrogenated 106233-12-9 Distillates, petroleum, heavy thermal cracked, polymers with C8-16- cycloalkadiene conc. debenzenized light steam-cracked petroleum naphtha 106233-13-0 Distillates, petroleum, heavy thermal Substance found at cracked, polymers with C8-16- refineries, but also may be cycloalkadiene conc. debenzenized light produced in separate steam-cracked petroleum naphtha and petrochemical methylstyrene manufacturing facilities. 68921-09-5 Distillates, petroleum, naphtha unifiner A complex combination of hydrocarbons produced by stripping the stripper products from the naphtha unifiner. It consists of saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C2 through C6. 98859-55-3 Distillates, petroleum, oxidized heavy, compds. with diethanolamine 98859-56-4 Distillates, petroleum, oxidized heavy, sodium salts 67891-81-0 Distillates, petroleum, oxidized light, potassium salts 68938-55-6 Distillates, petroleum, steam-cracked, C5- 18 cracked fraction, polymd., sulfur- crosslinked 163440-93-5 Distillates, petroleum, steam-cracked, C8- 12 fraction, polymd. 74552-82-2 Distillates, petroleum, steam-cracked, polymers with C8-16-cycloalkadiene conc. debenzenized light steam-cracked petroleum naphtha 68990-36-3 , C2-7-alkyl

4 of 10 February 25, 2004 American Petroleum Institute Petroleum Refinery Process Stream Additions CasNo Substance Definition Caveat 73665-18-6 Extract residues, coal, tar oil alk., The residue obtained from chemical oil extracted after the naphthalene distn. residues removal of naphthalene by distillation composed primarily of two to four membered condensed ring aromatic hydrocarbons and aromatic nitrogen bases. 164907-78-2 Extracts, petroleum, asphaltene-low A complex combination of hydrocarbons obtained as the solvent vacuum residue solvent soluble fraction from C3 to C4 solvent extraction of low asphaltene vacuum tower residues. It consists predominantly of hydrocarbons having carbon numbers greater than C25 and boiling above 400.degree.C (752.degree.F). 68131-94-2 Extracts, petroleum, heavy naphthenic distillate solvent, sulfonated 68131-95-3 Extracts, petroleum, heavy naphthenic distillate solvent, sulfonated, sodium salts

68131-96-4 Extracts, petroleum, paraffinic distillate solvent, sulfonated 68131-97-5 Extracts, petroleum, paraffinic distillate solvent, sulfonated, sodium salts 68476-27-7 Fuel gases, system residues The complex residuum from the amine system for removal of hydrogen . It consists primarily of hydrogen, methane and ethane with various small amounts of nitrogen, carbon dioxide and hydrocarbons having carbon numbers predominantly in the range of C3 through C5. 68918-98-9 Fuel gases, refinery, hydrogen sulfide-free A complex combination of light gases consisting of hydrocarbons having carbon numbers predominantly in the range of C1 through C3. Produced from the fractionation and subsequent scrubbing of hydrotreating units. 68603-04-3 Gas oils, petroleum, heavy vacuum, sulfonated 68603-05-4 Gas oils, petroleum, heavy vacuum, sulfonated, ammonium salts 68603-06-5 Gas oils, petroleum, hydrotreated vacuum, sulfonated 68603-07-6 Gas oils, petroleum, hydrotreated vacuum, sulfonated, ammonium salts

5 of 10 February 25, 2004 American Petroleum Institute Petroleum Refinery Process Stream Additions CasNo Substance Definition Caveat 178603-63-9 Gas oils, petroleum, vacuum, A complex combination of saturated hydrocarbons obtained by hydrocracked, hydroisomerized, catalytic hydrogenation of vacuum gas oils followed with dewaxing hydrogenated, C10-25 by hydroisomerization and stabilization by hydrotreating at high pressure. It consists of saturated hydrocarbons having carbon numbers predominantly in the range of C10-C25 and boiling in the range of approximately 148.degree.C to 343.degree.C (300.degree.F to 650.degree.F).

445411-73-4 Gas oils, petroleum, vacuum, hydrocracked, hydroisomerized, hydrogenated, C10-25, branched and cyclic 178603-64-0 Gas oils, petroleum, vacuum, A complex combination of saturated hydrocarbons obtained by hydrocracked, hydroisomerized, catalytic hydrogenation of vacuum gas oils followed with dewaxing hydrogenated, C15-30, branched and by hydroisomerization and stabilization by hydrotreating at high cyclic pressure. It consists of saturated hydrocarbons, isoparaffins, and cycloparaffins having carbon numbers predominantly in the range of C15-C30. The viscosity at 40.degree.C is 10 cSt,and the viscosity index is greater than 95.

178603-65-1 Gas oils, petroleum, vacuum, A complex combination of saturated hydrocarbons obtained by hydrocracked, hydroisomerized, catalytic hydrogenation of vacuum gas oils followed with dewaxing hydrogenated, C20-40, branched and by hydroisomerization and stabilization by hydrotreating at high cyclic pressure. It consists of saturated hydrocarbons, isoparaffins, and cycloparaffins having carbon numbers predominantly in the range of C20-C40. The viscosity at 40.degree.C is 20 cSt, and the viscosity index is greater than 120.

178603-66-2 Gas oils, petroleum, vacuum, A complex combination of saturated hydrocarbons obtained by hydrocracked, hydroisomerized, catalytic hydrogenation of vacuum gas oils followed with dewaxing hydrogenated, C25-55, branched and by hydroisomerization and stabilization by hydrotreating at high cyclic pressure. It consists of saturated hydrocarbons, isoparaffins, and branched cycloparaffins having carbon numbers predominantly in the range of C25-C55. The viscosity at 40.degree.C is 65 cSt, and the viscosity index is greater than 115.

6 of 10 February 25, 2004 American Petroleum Institute Petroleum Refinery Process Stream Additions CasNo Substance Definition Caveat 102479-87-8 Gases, petroleum, extractive, C3-5, butene-isobutylene-rich, reaction products with butene, isobutylene and methanol, distn. residues 108083-43-8 Gases, petroleum, extractive, C4-6, isopentene-rich, reaction products with methanol, byproducts from 108083-44-9 Gases, petroleum, extractive, C4-6, isopentene-rich, reaction products with methanol, fraction, hydrogenated, cracked, isopentene fraction 68477-98-5 Gases, petroleum, hydrotreater blend oil A complex combination obtained from recycled hydrotreated blend recycle, hydrogen-nitrogenrich oil. It consists primarily of hydrogen and nitrogen with various small amounts of carbon monoxide, carbon dioxide and hydrocarbons having carbon numbers predominantly in the range of C1 through C5. 68477-99-6 Gases, petroleum, isomerized naphtha fractionater, C4-rich, hydrogen sulfide-free

426260-76-6 Heptane, branched, cyclic and linear A complex combination of hydrocarbons composed primarily of Added after publication of branched, linear and cyclic heptanes, and may contain heptenes. July 2003 TSCA Inventory It boils in the range of 195 F to 209 F. 68606-23-5 Hydrocarbon oils, sulfurized 68425-32-1 Hydrocarbon waxes, petroleum, clay- treated microcryst., contg. polyethylene, oxidized, reaction products with 2,4-TDI

67891-86-5 Hydrocarbon waxes, petroleum, oxidized, compds. with diisopropanolamine

73138-64-4 Hydrocarbon waxes, petroleum, oxidized, with glycerol 73138-65-5 Hydrocarbon waxes, petroleum, oxidized, magnesium salts

7 of 10 February 25, 2004 American Petroleum Institute Petroleum Refinery Process Stream Additions CasNo Substance Definition Caveat 68911-05-7 Hydrocarbons, C12-30, olefin-rich, A complex combination of hydrocarbons produced during ethylene polymn. by-product fractionation in ethylene polymerization. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C12 through C30. 93685-79-1 Hydrocarbons, C4, 1,3-butadiene-free, polymd., pentaisobutylene fraction, hydrogenated 68187-60-0 Hydrocarbons, C4, ethane-propane- A complex combination of hydrocarbons obtained from the cracked thermal cracking of a mixture of ethane and propane. It consists predominantly of C4 hydrocarbons. 69430-34-8 Hydrocarbons, C6-20, polymers 69430-35-9 Hydrocarbons, C6-20, polymers, hydrogenated 71302-83-5 Hydrocarbons, C9-unsatd., polymd. 120928-15-6 Kerosine, petroleum, polymn. 68606-38-2 Kerosine, petroleum, sulfonated 92045-43-7 Lubricating oils, petroleum, hydrocracked nonarom. solvent deparaffined

101316-73-8 Lubricating oils, petroleum, used, noncatalytically refined 68952-09-0 Naphtha, light steam-cracked, polymers with 96471-07-7 Naphtha, petroleum, heavy alkylate, sulfonated 92045-58-4 Naphtha, petroleum, isomerization, C6- A complex combination of hydrocarbons obtained by distillation of fraction a gasoline which has been catalytically isomerized. It consists predominantly of hexane isomers boiling in the range of approximately 60.degree.C to 66.degree.C (140.degree.F to 151.degree.F).

8 of 10 February 25, 2004 American Petroleum Institute Petroleum Refinery Process Stream Additions CasNo Substance Definition Caveat 68513-03-1 Naphtha, petroleum, light catalytic A complex combination of hydrocarbons obtained from distillation reformed, arom.-free of products from a catalytic reforming process. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C5 through C8 and boiling in the range of approximately 35.degree.C to 120.degree.C (95.degree.F to 248.degree.F). It contains a relatively large proportion of branched chain hydrocarbons with the aromatic components removed. 68514-39-6 Naphtha, petroleum, light steam-cracked, A complex combination of hydrocarbons produced by the isoprene-rich distillation of the products from a steam cracking process. It consists predominantly of unsaturated hydrocarbons having a carbon number of C5, primarily isoprene, and boiling in the range of approximately 20.degree.C to 44.degree.C (68.degree.F to 112.degree.F) 152699-00-8 Naphthalene, cetyl derivs. 68442-08-0 Naphthalene, isopropylated 67254-74-4 Naphthenic oils Liquid naphthenic hydrocarbons from petroleum. 71820-39-8 Paraffin oils, oxidized, calcium salts 68201-54-7 Paraffin oils, sulfurized 277316-99-1 Paraffin waxes and Hydrocarbon waxes, A complex combination of hydrocarbons obtained by treating a hydrocracked, solvent-dewaxed paraffin wax (prepared by the Fischer-Tropsch Process) with a catalytic hydrocracking process followed by solvent dewaxing. It consists predominantly of saturated straight and branched chain hydrocarbons having carbon numbers predominantly in the range of C20-44 and boiling in the range 345.degree.C to 370.degree.C (653.degree.F to 689.degree.F).

68649-47-8 Paraffin waxes and Hydrocarbon waxes, oxidized, calcium sodium salts 68649-48-9 Paraffin waxes and Hydrocarbon waxes, oxidized, lithium salts 68649-49-0 Paraffin waxes and Hydrocarbon waxes, oxidized, lithium sodium salts 68815-10-1 Petroleum, sulfurized 68478-11-5 Phenols, petroleum, sodium salts

9 of 10 February 25, 2004 American Petroleum Institute Petroleum Refinery Process Stream Additions CasNo Substance Definition Caveat 164907-79-3 Residues, petroleum, vacuum, asphaltene-A complex combination of hydrocarbons obtained from the low vacuum distillation of the residuum from the atomospheric distillation of crude oil. It consists predominantly of hydrocarbons having carbon numbers greater than C25 and boiling above 400.degree.C (752.degree.F). 92062-09-4 Slack wax, petroleum, hydrotreated A complex combination of hydrocarbons obtained by treating slack wax with hydrogen in the presence of a catalyst. It consists predominantly of saturated straight and branched chain hydrocarbons having carbon numbers predominantly greater than C20. 212210-93-0 Solvent naphtha, petroleum, heavy arom., distn. residues 216977-01-4 Solvent naphtha, petroleum, heavy arom., middle fraction, reaction products with 1- butene, distn. residues 68478-31-9 Tail gas, petroleum, isomerized naphtha fractionates, hydrogen sulfide-free

68477-23-6 Tar acids, residues, distillates, first-cut The residue from the distillation in the range of 235.degree.C to 355.degree.C (455.degree.F to 671.degree.F) of light carbolic oil.

10 of 10 February 25, 2004