LegalizeThe Dangerous Substances and Preparations (Safety) Regulations 2006
| Substances | Index number | EC number | CAS number | Category | Category | Category |
|---|---|---|---|---|---|---|
| Distillates (petroleum), chemically neutralized light naphthenic; Unrefined or mildly refined baseoil (A complex combination of hydrocarbons produced by a treating process to remove acidic materials. It consists of hydrocarbons having carbon numbers predominantly in the range of C₁₅ through C₃₀, and produces a finished oil with a viscosity of at least 100 SUS at 100 °F (19 cSt at 40 °C). It contains relatively few normal paraffins.) | 649-061-00-0 | 265-136-7 | 64742-35-4 | C1 | ||
| Gases (petroleum), catalytic cracked naphtha depropanizer overhead, C₃-rich acid-free; Petroleum gas (A complex combination of hydrocarbons obtained from fractionation of catalytic cracked hydrocarbons and treated to remove acidic impurities. It consists of hydrocarbons having carbon numbers in the range of C₂ through C₄, predominantly C₃.) | 649-062-00-6 | 270-755-0 | 68477-73-6 | C1 | M2 | |
| Gases (petroleum), catalytic cracker; Petroleum gas (A complex combination of hydrocarbons produced by the distillation of the products from a catalytic cracking process. It consists predominantly of aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-063-00-1 | 270-756-6 | 68477-74-7 | C1 | M2 | |
| Gases (petroleum), catalytic cracker, C₁-₅-rich; Petroleum gas (A complex combination of hydrocarbons produced by the distillation of products from a catalytic cracking process. It consists of aliphatic hydrocarbons having carbon numbers in the range of C₁ through C₆, predominantly C₁ through C₅.) | 649-064-00-7 | 270-757-1 | 68477-75-8 | C1 | M2 | |
| Gases (petroleum), catalytic polymd. naphtha stabilizer overhead, C₂-₄-rich; Petroleum gas. (A complex combination of hydrocarbons obtained from the fractionation stabilization of catalytic polymerized naphtha. It consists of aliphatic hydrocarbons having carbon numbers in the range of C₂ through C₆, predominantly C₂ through C₄.) | 649-065-00-2 | 270-758-7 | 68477-76-9 | C1 | M2 | |
| Gases (petroleum), catalytic reformer, C₁-₄-rich; Petroleum gas. (A complex combination of hydrocarbons produced by distillation of products from a catalytic reforming process. It consists of hydrocarbons having carbon numbers in the range of C₁ through C₆, predominantly C₁ through C₄.) | 649-066-00-8 | 270-760-8 | 68477-79-2 | C1 | M2 | |
| Gases (petroleum), C3–5 olefinic-paraffinic alkylation feed; Petroleum gas (A complex combination of olefinic and paraffinic hydrocarbons having carbon numbers in the range of C₃ through C₅ which are used as alkylation feed. Ambient temperatures normally exceed the critical temperature of these combinations.) | 649-067-00-3 | 270-765-5 | 68477-83-8 | C1 | M2 | |
| Gases (petroleum), C₄-rich; Petroleum gas (A complex combination of hydrocarbons produced by distillation of products from a catalytic fractionation process. It consists of aliphatic hydrocarbons having carbon numbers in the range of C₃ through C₅, predominantly C₄.) | 649-068-00-9 | 270-767-6 | 68477-85-0 | C1 | M2 | |
| Gases (petroleum), deethanizer overheads; Petroleum gas. (A complex combination of hydrocarbons produced from distillation of the gas and gasoline fractions from the catalytic cracking process. It contains predominantly ethane and ethylene.) | 649-069-00-4 | 270-768-1 | 68477-86-1 | C1 | M2 | |
| Gases (petroleum), deisobutanizer tower overheads; Petroleum gas (A complex combination of hydrocarbons produced by the atmospheric distillation of a butane-butylene stream. It consists of aliphatic hydrocarbons having carbon numbers predominantly in the range of C₃ through C₄.) | 649-070-00-X | 270-769-7 | 68477-87-2 | C1 | M2 | |
| Gases (petroleum), depropanizer dry, propene-rich; Petroleum gas. (A complex combination of hydrocarbons produced by the distillation of products from the gas and gasoline fractions of a catalytic cracking process. It consists predominantly of propylene with some ethane and propane.) | 649-071-00-5 | 270-772-3 | 68477-90-7 | C1 | M2 | |
| Gases (petroleum), depropanizer overheads; Petroleum gas (A complex combination of hydrocarbons produced by distillation of products from the gas and gasoline fractions of a catalytic cracking process. It consists of aliphatic hydrocarbons having carbon numbers predominantly in the range of C₂ through C₄.) | 649-072-00-0 | 270-773-9 | 68477-91-8 | C1 | M2 | |
| Gases (petroleum), gas recovery plant depropanizer overheads; Petroleum gas (A complex combination of hydrocarbons obtained by fractionation of miscellaneous hydrocarbon streams. It consists predominantly of hydrocarbons having carbon numbers in the range of C₁ through C₄, predominantly propane.) | 649-073-00-6 | 270-777-0 | 68477-94-1 | C1 | M2 | |
| Gases (petroleum), Girbatol unit feed; Petroleum gas (A complex combination of hydrocarbons that is used as the feed into the Girbatol unit to remove hydrogen sulfide. It consists of aliphatic hydrocarbons having carbon numbers predominantly in the range of C₂ through C₄.) | 649-074-00-1 | 270-778-6 | 68477-95-2 | C1 | M2 | |
| Gases (petroleum), isomerized naphtha fractionator, C₄-rich, hydrogen sulfide-free; Petroleum gas | 649-075-00-7 | 270-782-8 | 68477-99-6 | C1 | M2 | |
| Tail gas (petroleum), catalytic cracked clarified oil and thermal cracked vacuum residue fractionation reflux drum; Petroleum gas (A complex combination of hydrocarbons obtained from fractionation of catalytic cracked clarified oil and thermal cracked vacuum residue. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-076-00-2 | 270-802-5 | 68478-21-7 | C1 | M2 | |
| Tail gas (petroleum), catalytic cracked naphtha stabilization absorber; Petroleum gas (A complex combination of hydrocarbons obtained from the stabilization of catalytic cracked naphtha. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-077-00-8 | 270-803-0 | 68478-22-8 | C1 | M2 | |
| Tail gas (petroleum), catalytic cracker, catalytic reformer and hydrodesulfurizer combined fractionater; Petroleum gas (A complex combination of hydrocarbons obtained from the fractionation of products from catalytic cracking, catalytic reforming and hydrodesulfurizing processes treated to remove acidic impurities. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-078-00-3 | 270-804-6 | 68478-24-0 | C1 | M2 | |
| Tail gas (petroleum), catalytic reformed naphtha fractionation stabilizer; Petroleum gas (A complex combination of hydrocarbons obtained from the fractionation stabilization of catalytic reformed naphtha. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-079-00-9 | 270-806-7 | 68478-26-2 | C1 | M2 | |
| Tail gas (petroleum), saturate gas plant mixed stream, C₄-rich; Petroleum gas (A complex combination of hydrocarbons obtained from the fractionation stabilization of straight-run naphtha, distillation tail gas and catalytic reformed naphtha stabilizer tail gas. It consists of hydrocarbons having carbon numbers in the range of C₃ through C₆, predominantly butane and isobutane.) | 649-080-00-4 | 270-813-5 | 68478-32-0 | C1 | M2 | |
| Tail gas (petroleum), saturate gas recovery plant, C1–2-rich; Petroleum gas (A complex combination of hydrocarbons obtained from fractionation of distillate tail gas, straight-run naphtha, catalytic reformed naphtha stabilizer tail gas. It consists predominantly of hydrocarbons having carbon numbers in the range of C₁ through C₅, predominantly methane and ethane.) | 649-081-00-X | 270-814-0 | 68478-33-1 | C1 | M2 | |
| Tail gas (petroleum), vacuum residues thermal cracker; Petroleum gas (A complex combination of hydrocarbons obtained from the thermal cracking of vacuum residues. It consists of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-082-00-5 | 270-815-6 | 68478-34-2 | C1 | M2 | |
| Hydrocarbons, C3–4-rich, petroleum distillate; Petroleum gas (A complex combination of hydrocarbons produced by distillation and condensation of crude oil. It consists of hydrocarbons having carbon numbers in the range of C₃ through C₅, predominantly C₃ through C₄.) | 649-083-00-0 | 270-990-9 | 68512-91-4 | C1 | M2 | |
| Gases (petroleum), full-range straight-run naphtha dehexanizer off; Petroleum gas (A complex combination of hydrocarbons obtained by the fractionation of the full-range straight-run naphtha. It consists of hydrocarbons having carbon numbers predominantly in the range of C₂ through C₆.) | 649-084-00-6 | 271-000-8 | 68513-15-5 | C1 | M2 | |
| Gases (petroleum), hydrocracking depropanizer off, hydrocarbon-rich; Petroleum gas (A complex combination of hydrocarbon produced by the distillation of products from a hydrocracking process. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄. It may also contain small amounts of hydrogen and hydrogen sulfide.) | 649-085-00-1 | 271-001-3 | 68513-16-6 | C1 | M2 | |
| Gases (petroleum), light straight-run naphtha stabilizer off; Petroleum gas (A complex combination of hydrocarbons obtained by the stabilization of light straight-run naphtha. It consists of saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₂ through C₆.) | 649-086-00-7 | 271-002-9 | 68513-17-7 | C1 | M2 | |
| Residues (petroleum), alkylation splitter, C₄-rich; Petroleum gas (A complex residuum from the distillation of streams from various refinery operations. It consists of hydrocarbons having carbon numbers in the range of C₄ through C₅, predominantly butane, and boiling in the range of approximately −11.7 °C to 27.8 °C.) | 649-087-00-2 | 271-010-2 | 68513-66-6 | C1 | M2 | |
| Hydrocarbons, C1–4; Petroleum gas (A complex combination of hydrocarbons provided by thermal cracking and absorber operations and by distillation of crude oil. It consists of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄ and boiling in the range of approximately minus 164 °C to minus 0.5 °C.) | 649-088-00-8 | 271-032-2 | 68514-31-8 | C1 | M2 | |
| Hydrocarbons, C1–4, sweetened; Petroleum gas (A complex combination of hydrocarbons obtained by subjecting hydrocarbon gases to a sweetening process to convert mercaptans or to remove acidic impurities. It consists of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄ and boiling in the range of approximately −164 °C to −0.5 °C.) | 649-089-00-3 | 271-038-5 | 68514-36-3 | C1 | M2 | |
| Hydrocarbons, C1–3; Petroleum gas (A complex combination of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₃ and boiling in the range of approximately −164 °C to −42 °C.) | 649-090-00-9 | 271-259-7 | 68527-16-2 | C1 | M2 | |
| Hydrocarbons, C1–4, debutanizer fraction; Petroleum gas | 649-091-00-4 | 271-261-8 | 68527-19-5 | C1 | M2 | |
| Gases (petroleum), C1–5, wet; Petroleum gas (A complex combination of hydrocarbons produced by the distillation of crude oil and/or the cracking of tower gas oil. It consists of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-092-00-X | 271-624-0 | 68602-83-5 | C1 | M2 | |
| Hydrocarbons, C2–4; Petroleum gas | 649-093-00-5 | 271-734-9 | 68606-25-7 | C1 | M2 | |
| Hydrocarbons, C₃; Petroleum gas | 649-094-00-0 | 271-735-4 | 68606-26-8 | C1 | M2 | |
| Gases (petroleum), alkylation feed; Petroleum gas (A complex combination of hydrocarbons produced by the catalytic cracking of gas oil. It consists of hydrocarbons having carbon numbers predominantly in the range of C₃ through C₄.) | 649-095-00-6 | 271-737-5 | 68606-27-9 | C1 | M2 | |
| Gases (petroleum), depropanizer bottoms fractionation off; Petroleum gas (A complex combination of hydrocarbons obtained from the fractionation of depropanizer bottoms. It consists predominantly of butane, isobutane and butadiene.) | 649-096-00-1 | 271-742-2 | 68606-34-8 | C1 | M2 | |
| Gases (petroleum), refinery blend; Petroleum gas (A complex combination obtained from various processes. It consists of hydrogen, hydrogen sulfide and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-097-00-7 | 272-183-7 | 68783-07-3 | C1 | M2 | |
| Gases (petroleum), catalytic cracking; Petroleum gas (A complex combination of hydrocarbons produced by the distillation of the products from a catalytic cracking process. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₃ through C₅.) | 649-098-00-2 | 272-203-4 | 68783-64-2 | C1 | M2 | |
| Gases (petroleum), C2–4, sweetened; Petroleum gas (A complex combination of hydrocarbons obtained by subjecting a petroleum distillate to a sweetening process to convert mercaptans or to remove acidic impurities. It consists predominantly of saturated and unsaturated hydrocarbons having carbon numbers predominantly in the range of C₂ through C₄ and boiling in the range of approximately − 51 °C to − 34 °C.) | 649-099-00-8 | 272-205-5 | 68783-65-3 | C1 | M2 | |
| Gases (petroleum), crude oil fractionation off; Petroleum gas (A complex combination of hydrocarbons produced by the fractionation of crude oil. It consists of saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-100-00-1 | 272-871-7 | 68918-99-0 | C1 | M2 | |
| Gases (petroleum), dehexanizer off; Petroleum gas (A complex combination of hydrocarbons obtained by the fractionation of combined naphtha streams. It consists of saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-101-00-7 | 272-872-2 | 68919-00-6 | C1 | M2 | |
| Gases (petroleum), light straight run gasoline fractionation stabilizer off; Petroleum gas (A complex combination of hydrocarbons obtained by the fractionation of light straight-run gasoline. It consists of saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-102-00-2 | 272-878-5 | 68919-05-1 | C1 | M2 | |
| Gases (petroleum), naphtha unifiner desulfurization stripper off; Petroleum gas (A complex combination of hydrocarbons produced by a naphtha unifiner desulfurization process and stripped from the naphtha product. It consists of saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-103-00-8 | 272-879-0 | 68919-06-2 | C1 | M2 | |
| Gases (petroleum), straight-run naphtha catalytic reforming off; Petroleum gas (A complex combination of hydrocarbons obtained by the catalytic reforming of straight-run naphtha and fractionation of the total effluent. It consists of methane, ethane, and propane.) | 649-104-00-3 | 272-882-7 | 68919-09-5 | C1 | M2 | |
| Gases (petroleum), fluidized catalytic cracker splitter overheads; Petroleum gas (A complex combination of hydrocarbons produced by the fractionation of the charge to the C₃-C₄ splitter. It consists predominantly of C₃ hydrocarbons.) | 649-105-00-9 | 272-893-7 | 68919-20-0 | C1 | M2 | |
| Gases (petroleum), straight-run stabilizer off; Petroleum gas (A complex combination of hydrocarbons obtained from the fractionation of the liquid from the first tower used in the distillation of crude oil. It consists of saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-106-00-4 | 272-883-2 | 68919-10-8 | C1 | M2 | |
| Gases (petroleum), catalytic cracked naphtha debutanizer; Petroleum gas (A complex combination of hydrocarbons obtained from fractionation of catalytic cracked naphtha. It consists of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-107-00-X | 273-169-3 | 68952-76-1 | C1 | M2 | |
| Tail gas (petroleum), catalytic cracked distillate and naphtha stabilizer; Petroleum gas (A complex combination of hydrocarbons obtained by the fractionation of catalytic cracked naphtha and distillate. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-108-00-5 | 273-170-9 | 68952-77-2 | C1 | M2 | |
| Tail gas (petroleum), thermal-cracked distillate, gas oil and naphtha absorber; Petroleum gas (A complex combination of hydrocarbons obtained from the separation of thermal-cracked distillates, naphtha and gas oil. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-109-00-0 | 273-175-6 | 68952-81-8 | C1 | M2 | |
| Tail gas (petroleum), thermal cracked hydrocarbon fractionation stabilizer, petroleum coking; Petroleum gas (A complex combination of hydrocarbons obtained from the fractionation stabilization of thermal cracked hydrocarbons from a petroleum coking process. It consists of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-110-00-6 | 273-176-1 | 68952-82-9 | C1 | M2 | |
| Gases (petroleum, light steam-cracked, butadiene conc.; Petroleum gas (A complex combination of hydrocarbons produced by the distillation of products from a thermal cracking process. It consists of hydrocarbons having a carbon number predominantly of C₄.) | 649-111-00-1 | 273-265-5 | 68955-28-2 | C1 | M2 | |
| Gases (petroleum), straight-run naphtha catalytic reformer stabilizer overhead; Petroleum gas (A complex combination of hydrocarbons obtained by the catalytic reforming of straight-run naphtha and the fractionation of the total effluent. It consists of saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₂ through C₄.) | 649-112-00-7 | 273-270-2 | 68955-34-0 | C1 | M2 | |
| Hydrocarbons, C₄; Petroleum gas | 649-113-00-2 | 289-339-5 | 87741-01-3 | C1 | M2 | |
| Alkanes, C1–4, C₃-rich; Petroleum gas | 649-114-00-8 | 292-456-4 | 90622-55-2 | C1 | M2 | |
| Gases (petroleum), steam-cracker C₃-rich; Petroleum gas (A complex combination of hydrocarbons produced by the distillation of products from a steam cracking process. It consists predominantly of propylene with some propane and boils in the range of approximately −°70 °C to 0 °C.) | 649-115-00-3 | 295-404-9 | 92045-22-2 | C1 | M2 | |
| Hydrocarbons, C₄, steam-cracker distillate; Petroleum gas (A complex combination of hydrocarbons produced by the distillation of the products of a steam cracking process. It consists predominantly of hydrocarbons having a carbon number of C₄, predominantly 1-butene and 2-butene, containing also butane and isobutene and boiling in the range of approximately −12 °C to 5 °C.) | 649-116-00-9 | 295-405-4 | 92045-23-3 | C1 | M2 | |
| Petroleum gases, liquefied, sweetened, C₄ fraction; Petroleum gas (A complex combination of hydrocarbons obtained by subjecting a liquified petroleum gas mix to a sweetening process to oxidize mercaptans or to remove acidic impurities. It consists predominantly of C₄ saturated and unsaturated hydrocarbons.) | 649-117-00-4 | 295-463-0 | 92045-80-2 | C1 | M2 | |
| Hydrocarbons, C₄, 1,3-butadieneand isobutene-free; Petroleum gas | 649-118-00-X | 306-004-1 | 95465-89-7 | C1 | M2 | |
| Raffinates (petroleum), steam-cracked C₄ fraction cuprous ammonium acetate extn., C3–5 and C3–5 unsatd., butadiene-free; Petroleum gas | 649-119-00-5 | 307-769-4 | 97722-19-5 | C1 | M2 | |
| Gases (petroleum), amine system feed; Refinery gas (The feed gas to the amine system for removal of hydrogen sulphide. It consists primarily of hydrogen. Carbon monoxide, carbon dioxide, hydrogen sulfide and aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅ may also be present.) | 649-120-00-0 | 270-746-1 | 68477-65-6 | C1 | M2 | |
| Gases (petroleum), benzene unit hydrodesulphurizer off; Refinery gas (Off gases produced by the benzene unit. It consists primarily of hydrogen. Carbon monoxide and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆, including benzene, may also be present.) | 649-121-00-6 | 270-747-7 | 68477-66-7 | C1 | M2 | |
| Gases (petroleum), benzene unit recycle, hydrogen-rich; Refinery gas (A complex combination of hydrocarbons obtained by recycling the gases of the benzene unit. It consists primarily of hydrogen with various small amounts of carbon monoxide and hydrocarbons having carbon numbers in the range of C₁ through C₆.) | 649-122-00-1 | 270-748-2 | 68477-67-8 | C1 | M2 | |
| Gases (petroleum), blend oil, hydrogen-nitrogen-rich; Refinery gas (A complex combination of hydrocarbons obtained by distillation of a blend oil. It consists primarily of hydrogen and nitrogen with various small amounts of carbon monoxide, carbon dioxide, and aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-123-00-7 | 270-749-8 | 68477-68-9 | C1 | M2 | |
| Gases (petroleum), catalytic reformed naphtha stripper overheads; Refinery gas (A complex combination of hydrocarbons obtained from stabilization of catalytic reformed naphtha. It consists of hydrogen and saturated hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-124-00-2 | 270-759-2 | 68477-77-0 | C1 | M2 | |
| Gases (petroleum), C6–8 catalytic reformer recycle; Refinery gas (A complex combination of hydrocarbons produced by distillation of products from catalytic reforming of C₆-C₈ feed and recycled to conserve hydrogen. It consists primarily of hydrogen. It may also contain various small amounts of carbon monoxide, carbon dioxide, nitrogen, and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-125-00-8 | 270-761-3 | 68477-80-5 | C1 | M2 | |
| Gases (petroleum), C6–8 catalytic reformer; Refinery gas (A complex combination of hydrocarbons produced by distillation of products from catalytic reforming of C₆-C₈ feed. It consists of hydrocarbons having carbon numbers in the range of C₁ through C₅ and hydrogen.) | 649-126-00-3 | 270-762-9 | 68477-81-6 | C1 | M2 | |
| Gases (petroleum), C6–8 catalytic reformer recycle, hydrogen-rich; Refinery gas | 649-127-00-9 | 270-763-4 | 68477-82-7 | C1 | M2 | |
| Gases (petroleum), C₂-return stream; Refinery gas (A complex combination of hydrocarbons obtained by the extraction of hydrogen from a gas stream which consists primarily of hydrogen with small amounts of nitrogen, carbon monoxide, methane, ethane, and ethylene. It contains predominantly hydrocarbons such as methane, ethane, and ethylene with small amounts of hydrogen, nitrogen and carbon monoxide.) | 649-128-00-4 | 270-766-0 | 68477-84-9 | C1 | M2 | |
| Gases (petroleum), dry sour, gas-concn.-unit-off; Refinery gas (The complex combination of dry gases from a gas concentration unit. It consists of hydrogen, hydrogen sulphide and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₃.) | 649-129-00-X | 270-774-4 | 68477-92-9 | C1 | M2 | |
| Gases (petroleum), gas concn. reabsorber distn.; Refinery gas (A complex combination of hydrocarbons produced by distillation of products from combined gas streams in a gas concentration reabsorber. It consists predominantly of hydrogen, carbon monoxide, carbon dioxide, nitrogen, hydrogen sulphide and hydrocarbons having carbon numbers in the range of C₁ through C₃.) | 649-130-00-5 | 270-776-5 | 68477-93-0 | C1 | M2 | |
| Gases (petroleum), hydrogen absorber off; Refinery gas (A complex combination obtained by absorbing hydrogen from a hydrogen rich stream. It consists of hydrogen, carbon monoxide, nitrogen, and methane with small amounts of C₂ hydrocarbons.) | 649-131-00-0 | 270-779-1 | 68477-96-3 | C1 | M2 | |
| Gases (petroleum), hydrogen-rich; Refinery gas (A complex combination separated as a gas from hydrocarbon gases by chilling. It consists primarily of hydrogen with various small amounts of carbon monoxide, nitrogen, methane, and C₂ hydrocarbons.) | 649-132-00-6 | 270-780-7 | 68477-97-4 | C1 | M2 | |
| Gases (petroleum), hydrotreater blend oil recycle, hydrogen-nitrogen-rich; Refinery gas (A complex combination obtained from recycled hydrotreated blend 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.) | 649-133-00-1 | 270-781-2 | 68477-98-5 | C1 | M2 | |
| Gases (petroleum), recycle, hydrogen-rich; Refinery gas (A complex combination obtained from recycled reactor gases. It consists primarily of hydrogen with various small amounts of carbon monoxide, carbon dioxide, nitrogen, hydrogen sulphide, and saturated aliphatic hydrocarbons having carbon numbers in the range of C₁ through C₅.) | 649-134-00-7 | 270-783-3 | 68478-00-2 | C1 | M2 | |
| Gases (petroleum), reformer make-up, hydrogen-rich; Refinery gas (A complex combination obtained from the reformers. It consists primarily of hydrogen with various small amounts of carbon monoxide and aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-135-00-2 | 270-784-9 | 68478-01-3 | C1 | M2 | |
| Gases (petroleum), reforming hydrotreater; Refinery gas (A complex combination obtained from the reforming hydrotreating process. It consists primarily of hydrogen, methane, and ethane with various small amounts of hydrogen sulphide and aliphatic hydrocarbons having carbon numbers predominantly in the range C₃ through C₅.) | 649-136-00-8 | 270-785-4 | 68478-02-4 | C1 | M2 | |
| Gases (petroleum), reforming hydrotreater, hydrogen-methane-rich; Refinery gas (A complex combination obtained from the reforming hydrotreating process. It consists primarily of hydrogen and methane with various small amounts of carbon monoxide, carbon dioxide, nitrogen and saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₂ through C₅.) | 649-137-00-3 | 270-787-5 | 68478-03-5 | C1 | M2 | |
| Gases (petroleum), reforming hydrotreater make-up, hydrogen-rich; Refinery gas (A complex combination obtained from the reforming hydrotreating process. It consists primarily of hydrogen with various small amounts of carbon monoxide and aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-138-00-9 | 270-788-0 | 68478-04-6 | C1 | M2 | |
| Gases (petroleum), thermal cracking distn.; Refinery gas (A complex combination produced by distillation of products from a thermal cracking process. It consists of hydrogen, hydrogen sulphide, carbon monoxide, carbon dioxide and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-139-00-4 | 270-789-6 | 68478-05-7 | C1 | M2 | |
| Tail gas (petroleum), catalytic cracker refractionation absorber; Refinery gas (A complex combination of hydrocarbons obtained from refractionation of products from a catalytic cracking process. It consists of hydrogen and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₃.) | 649-140-00-X | 270-805-1 | 68478-25-1 | C1 | M2 | |
| Tail gas (petroleum), catalytic reformed naphtha separator; Refinery gas (A complex combination of hydrocarbons obtained from the catalytic reforming of straight-run naphtha. It consists of hydrogen and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-141-00-5 | 270-807-2 | 68478-27-3 | C1 | M2 | |
| Tail gas (petroleum), catalytic reformed naphtha stabilizer; Refinery gas (A complex combination of hydrocarbons obtained from the stabilization of catalytic reformed naphtha. It consists of hydrogen and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-142-00-0 | 270-808-8 | 68478-28-4 | C1 | M2 | |
| Tail gas (petroleum), cracked distillate hydrotreater separator; Refinery gas (A complex combination of hydrocarbons obtained by treating cracked distillates with hydrogen in the presence of a catalyst. It consists of hydrogen and saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-143-00-6 | 270-809-3 | 68478-29-5 | C1 | M2 | |
| Tail gas (petroleum), hydrodesulphurized straight-run naphtha separator; Refinery gas (A complex combination of hydrocarbons obtained from hydrodesulphurization of straight-run naphtha. It consists of hydrogen and saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-144-00-1 | 270-810-9 | 68478-30-8 | C1 | M2 | |
| Gases (petroleum), catalytic reformed straight-run naphtha stabilizer overheads; Refinery gas (A complex combination of hydrocarbons obtained from the catalytic reforming of straight-run naphtha followed by fractionation of the total effluent. It consists of hydrogen, methane, ethane and propane.) | 649-145-00-7 | 270-999-8 | 68513-14-4 | C1 | M2 | |
| Gases (petroleum), reformer effluent high-pressure flash drum off; Refinery gas (A complex combination produced by the high-pressure flashing of the effluent from the reforming reactor. It consists primarily of hydrogen with various small amounts of methane, ethane, and propane.) | 649-146-00-2 | 271-003-4 | 68513-18-8 | C1 | M2 | |
| Gases (petroleum), reformer effluent low-pressure flash drum off; Refinery gas (A complex combination produced by low-pressure flashing of the effluent from the reforming reactor. It consists primarily of hydrogen with various small amounts of methane, ethane, and propane.) | 649-147-00-8 | 271-005-5 | 68513-19-9 | C1 | M2 | |
| Gases (petroleum), oil refinery gas distn. off; Refinery gas (A complex combination separated by distillation of a gas stream containing hydrogen, carbon monoxide, carbon dioxide and hydrocarbons having carbon numbers in the range of C₁ through C₆ or obtained by cracking ethane and propane. It consists of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₂, hydrogen, nitrogen, and carbon monoxide.) | 649-148-00-3 | 271-258-1 | 68527-15-1 | C1 | M2 | |
| Gases (petroleum), benzene unit hydrotreater depentanizer overheads; Refinery gas (A complex combination produced by treating the feed from the benzene unit with hydrogen in the presence of a catalyst followed by depentanizing. It consists primarily of hydrogen, ethane and propane with various small amounts of nitrogen, carbon monoxide, carbon dioxide and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆. It may contain trace amounts of benzene.) | 649-149-00-9 | 271-623-5 | 68602-82-4 | C1 | M2 | |
| Gases (petroleum), secondary absorber off, fluidized catalytic cracker overheads fractionator; Refinery gas (A complex combination produced by the fractionation of the overhead products from the catalytic cracking process in the fluidized catalytic cracker. It consists of hydrogen, nitrogen, and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₃.) | 649-150-00-4 | 271-625-6 | 68602-84-6 | C1 | M2 | |
| Petroleum products, refinery gases; Refinery gas (A complex combination which consists primarily of hydrogen with various small amounts of methane, ethane and propane.) | 649-151-00 -X | 271-750-6 | 68607-11-4 | C1 | M2 | |
| Gases (petroleum), hydrocracking low-pressure separator; Refinery gas (A complex combination obtained by the liquid-vapour separation of the hydrocracking process reactor effluent. It consists predominantly of hydrogen and saturated hydrocarbons having carbon numbers predominantly in the range of C₁ through C₃.) | 649-152-00-5 | 272-182-1 | 68783-06-2 | C1 | M2 | |
| Gases (petroleum), refinery; Refinery gas (A complex combination obtained from various petroleum refining operations. It consists of hydrogen and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₃.) | 649-153-00-0 | 272-338-9 | 68814-67-5 | C1 | M2 | |
| Gases (petroleum), platformer products separator off; Refinery gas (A complex combination obtained from the chemical reforming of naphthenes to aromatics. It consists of hydrogen and saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₂ through C₄.) | 649-154-00-6 | 272-343-6 | 68814-90-4 | C1 | M2 | |
| Gases (petroleum), hydrotreated sour kerosine depentanizer stabilizer off; Refinery gas (The complex combination obtained from the depentanizer stabilization of hydrotreated kerosine. It consists primarily of hydrogen, methane, ethane, and propane with various small amounts of nitrogen, hydrogen sulphide, carbon monoxide and hydrocarbons having carbon numbers predominantly in the range of C₄ through C₅.) | 649-155-00-1 | 272-775-5 | 68911-58-0 | C1 | M2 | |
| Gases (petroleum), hydrotreated sour kerosine flash drum; Refinery gas (A complex combination obtained from the flash drum of the unit treating sour kerosine with hydrogen in the presence of a catalyst. It consists primarily of hydrogen and methane with various small amounts of nitrogen, carbon monoxide, and hydro-carbons having carbon numbers predominantly in the range of C₂ through C₅.) | 649-156-00-7 | 272-776-0 | 68911-59-1 | C1 | M2 | |
| Gases (petroleum), distillate unifiner desulphurization stripper off; Refinery gas (A complex combination stripped from the liquid product of the unifiner desulphurization process. It consists of hydrogen sulphide, methane, ethane, and propane.) | 649-157-00-2 | 272-873-8 | 68919-01-7 | C1 | M2 | |
| Gases (petroleum), fluidized catalytic cracker fractionation off; Refinery gas (A complex combination produced by the fractionation of the overhead product of the fluidized catalytic cracking process. It consists of hydrogen, hydrogen sulphide, nitrogen, and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-158-00-8 | 272-874-3 | 68919-02-8 | C1 | M2 | |
| Gases (petroleum), fluidized catalytic cracker scrubbing secondary absorber off; Refinery gas (A complex combination produced by scrubbing the overhead gas from the fluidized catalytic cracker. It consists of hydrogen, nitrogen, methane, ethane and propane.) | 649-159-00-3 | 272-875-9 | 68919-03-9 | C1 | M2 | |
| Gases (petroleum), heavy distillate hydrotreater desulphurization stripper off; Refinery gas (A complex combination stripped from the liquid product of the heavy distillate hydrotreater desulphurization process. It consists of hydrogen, hydrogen sulphide, and saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-160-00-9 | 272-876-4 | 68919-04-0 | C1 | M2 | |
| Gases (petroleum), platformer stabilizer off, light ends fractionation; Refinery gas (A complex combination obtained by the fractionation of the light ends of the platinum reactors of the platformer unit. It consists of hydrogen, methane, ethane and propane.) | 649-161-00-4 | 272-880-6 | 68919-07-3 | C1 | M2 | |
| Gases (petroleum), preflash tower off, crude distn.; Refinery gas (A complex combination produced from the first tower used in the distillation of crude oil. It consists of nitrogen and saturated aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-162-00-X | 272-881-1 | 68919-08-4 | C1 | M2 | |
| Gases (petroleum), tar stripper off; Refinery gas (A complex combination obtained by the fractionation of reduced crude oil. It consists of hydrogen and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-163-00-5 | 272-884-8 | 68919-11-9 | C1 | M2 | |
| Gases (petroleum), unifiner stripper off; Refinery gas (A combination of hydrogen and methane obtained by fractionation of the products from the unifiner unit.) | 649-164-00-0 | 272-885-3 | 68919-12-0 | C1 | M2 | |
| Tail gas (petroleum), catalytic hydrodesulphurized naphtha separator; Refinery gas (A complex combination of hydrocarbons obtained from the hydrodesulphurization of naphtha. It consists of hydrogen, methane, ethane, and propane.) | 649-165-00-6 | 273-173-5 | 68952-79-4 | C1 | M2 | |
| Tail gas (petroleum), straight-run naphtha hydrodesulphurizer; Refinery gas (A complex combination obtained from the hydrodesulphurization of straight-run naphtha. It consists of hydrogen and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-166-00-1 | 273-174-0 | 68952-80-7 | C1 | M2 | |
| Gases (petroleum), sponge absorber off, fluidized catalytic cracker and gas oil desulphurizer overhead fractionation; Refinery gas (A complex combination obtained by the fractionation of products from the fluidized catalytic cracker and gas oil desulphurizer. It consists of hydrogen and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-167-00-7 | 273-269-7 | 68955-33-9 | C1 | M2 | |
| Gases (petroleum), crude distn. and catalytic cracking; Refinery gas (A complex combination produced by crude distillation and catalytic cracking processes. It consists of hydrogen, hydrogen sulphide, nitrogen, carbon monoxide and paraffinic and olefinic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-168-00-2 | 273-563-5 | 68989-88-8 | C1 | M2 | |
| Gases (petroleum), gas oil diethanolamine scrubber off; Refinery gas (A complex combination produced by desulphurization of gas oils with diethanolamine. It consists predominantly of hydrogen sulphide, hydrogen and aliphatic hydrocarbons having carbon numbers in the range of C₁ through C₅.) | 649-169-00-8 | 295-397-2 | 92045-15-3 | C1 | M2 | |
| Gases (petroleum), gas oil hydrodesulphurization effluent; Refinery gas (A complex combination obtained by separation of the liquid phase from the effluent from the hydrogenation reaction. It consists predominantly of hydrogen, hydrogen sulphide and aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₃.) | 649-170-00-3 | 295-398-8 | 92045-16-4 | C1 | M2 | |
| Gases (petroleum), gas oil hydrodesulphurization purge; Refinery gas (A complex combination of gases obtained from the reformer and from the purges from the hydrogenation reactor. It consists predominantly of hydrogen and aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-171-00-9 | 295-399-3 | 92045-17-5 | C1 | M2 | |
| Gases (petroleum), hydrogenator effluent flash drum off; Refinery gas (A complex combination of gases obtained from flash of the effluents after the hydrogenation reaction. It consists predominantly of hydrogen and aliphatic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-172-00-4 | 295-400-7 | 92045-18-6 | C1 | M2 | |
| Gases (petroleum), naphtha steam cracking high-pressure residual; Refinery gas (A complex combination obtained as a mixture of the non-condensable portions from the product of a naphtha steam cracking process as well as residual gases obtained during the preparation of subsequent products. It consists predominantly of hydrogen and paraffinic and olefinic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅ with which natural gas may also be mixed.) | 649-173-00-X | 295-401-2 | 92045-19-7 | C1 | M2 | |
| Gases (petroleum), residue visbaking off; Refinery gas (A complex combination obtained from viscosity reduction of residues in a furnace. It consists predominantly of hydrogen sulphide and paraffinic and olefinic hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-174-00-5 | 295-402-8 | 92045-20-0 | C1 | M2 | |
| Foots oil (petroleum), acid-treated; Foots oil (A complex combination of hydrocarbons obtained by treatment of Foot’s oil with sulphuric acid. It consists predominantly of branched-chain hydrocarbons with carbon numbers predominantly in the range of C₂₀ through C₅₀.) | 649-175-00-0 | 300-225-7 | 93924-31-3 | C2 | ||
| Foots oil (petroleum), clay-treated; Foots oil (A complex combination of hydrocarbons obtained by treatment of Foot’s oil with natural or modified clay in either a contacting or percolation process to remove the trace amounts of polar compounds and impurities present. It consists predominantly of branched chain hydrocarbons with carbon numbers predominantly in the range of C₂₀ through C₅₀.) | 649-176-00-6 | 300-226-2 | 93924-32-4 | C2 | ||
| Gases (petroleum), C3–4; Petroleum gas (A complex combination of hydrocarbons produced by distillation of products from the cracking of crude oil. It consists of hydrocarbons having carbon numbers in the range of C₃ through C₄, predominantly of propane and propylene, and boiling in the range of approximately −51 °C to −1 °C.) | 649-177-00-1 | 268-629-5 | 68131-75-9 | C1 | M2 | |
| Tail gas (petroleum), catalytic cracked distillate and catalytic cracked naphtha fractionation absorber; Petroleum gas (The complex combination of hydrocarbons from the distillation of the products from catalytic cracked distillates and catalytic cracked naphtha. It consists predominantly of hydrocarbons having carbon numbers in the range of C₁ through C₄.) | 649-178-00-7 | 269-617-2 | 68307-98-2 | C1 | M2 | |
| Tail gas (petroleum), catalytic polymn. naphtha fractionation stabilizer; Petroleum gas (A complex combination of hydrocarbons from the fractionation stabilization products from polymerization of naphtha. It consists predominantly of hydrocarbons having carbon numbers in the range of C₁ through C₄.) | 649-179-00-2 | 269-618-8 | 68307-99-3 | C1 | M2 | |
| Tail gas (petroleum), catalytic reformed naphtha fractionation stabilizer, hydrogen sulphide-free; Petroleum gas (A complex combination of hydrocarbons obtained from fractionation stabilization of catalytic reformed naphtha and from which hydrogen sulphide has been removed by amine treatment. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-180-00-8 | 269-619-3 | 68308-00-9 | C1 | M2 | |
| Tail gas (petroleum), cracked distillate hydrotreater stripper; Petroleum gas (A complex combination of hydrocarbons obtained by treating thermal cracked distillates with hydrogen in the presence of a catalyst. It consists predominantly of saturated hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-181-00-3 | 269-620-9 | 68308-01-0 | C1 | M2 | |
| Tail gas (petroleum), straight-run distillate hydrodesulphurizer, hydrogen sulphide-free; Petroleum gas (A complex combination of hydrocarbons obtained from catalytic hydrodesulphurization of straight run distillates and from which hydrogen sulphide has been removed by amine treatment. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-182-00-9 | 269-630-3 | 68308-10-1 | C1 | M2 | |
| Tail gas (petroleum), gas oil catalytic cracking absorber; Petroleum gas (A complex combination of hydrocarbons obtained from the distillation of products from the catalytic cracking of gas oil. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-183-00-4 | 269-623-5 | 68308-03-2 | C1 | M2 | |
| Tail gas (petroleum), gas recovery plant; Petroleum gas (A complex combination of hydrocarbons from the distillation of products from miscellaneous hydrocarbon streams. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-184-00-X | 269-624-0 | 68308-04-3 | C1 | M2 | |
| Tail gas (petroleum), gas recovery plant deethanizer; Petroleum gas (A complex combination of hydrocarbons from the distillation of products from miscellaneous hydrocarbon streams. It consists of hydrocarbon having carbon numbers predominantly in the range of C₁ through C₄.) | 649-185-00-5 | 269-625-6 | 68308-05-4 | C1 | M2 | |
| Tail gas (petroleum), hydrodesulphurized distillate and hydrodesulphurized naphtha fractionator, acid-free; Petroleum gas (A complex combination of hydrocarbons obtained from fractionation of hydrodesulphurized naphtha and distillate hydrocarbon streams and treated to remove acidic impurities. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-186-00-0 | 269-626-1 | 68308-06-5 | C1 | M2 | |
| Tail gas (petroleum), hydrodesulphurized vacuum gas oil stripper, hydrogen sulphide-free; Petroleum gas (A complex combination of hydrocarbons obtained from stripping stabilization of catalytic hydrodesulphurized vacuum gas oil and from which hydrogen sulphide has been removed by amine treatment. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-187-00-6 | 269-627-7 | 68308-07-6 | C1 | M2 | |
| Tail gas (petroleum), light straight-run naphtha stabilizer, hydrogen sulphide-free; Petroleum gas (A complex combination of hydrocarbons obtained from fractionation stabilization of light straight-run naphtha and from which hydrogen sulphide has been removed by amine treatment. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₅.) | 649-188-00-1 | 269-629-8 | 68308-09-8 | C1 | M2 | |
| Tail gas (petroleum), propane-propylene alkylation feed prep deethanizer; Petroleum gas (A complex combination of hydrocarbons obtained from the distillation of the reaction products of propane with propylene. It consists of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄.) | 649-189-00-7 | 269-631-9 | 68308-11-2 | C1 | M2 | |
| Tail gas (petroleum), vacuum gas oil hydrodesulphurizer, hydrogen sulphide-free; Petroleum gas (A complex combination of hydrocarbons obtained from catalytic hydrodesulphurization of vacuum gas oil and from which hydrogen sulphide has been removed by amine treatment. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C₁ through C₆.) | 649-190-00-2 | 269-632-4 | 68308-12-3 | C1 | M2 | |
| Gases (petroleum), catalytic cracked overheads; Petroleum gas (A complex combination of hydrocarbons produced by the distillation of products from the catalytic cracking process. It consists of hydrocarbons having carbon numbers predominantly in the range of C₃ through C₅ and boiling in the range of approximately −48 °C to 32 °C.) | 649-191-00-8 | 270-071-2 | 68409-99-4 | C1 | M2 | |
| Alkanes, C1–2; Petroleum gas | 649-193-00-9 | 270-651-5 | 68475-57-0 | C1 | M2 | |
| Alkanes, C2–3; Petroleum gas | 649-194-00-4 | 270-652-0 | 68475-58-1 | C1 | M2 | |
| Alkanes, C3–4; Petroleum gas | 649-195-00-X | 270-653-6 | 68475-59-2 | C1 | M2 | |
| Alkanes, C4–5; Petroleum gas | 649-196-00-5 | 270-654-1 | 68475-60-5 | C1 | M2 | |
| Fuel gases; Petroleum gas (A combination of light gases. It consists predominantly of hydrogen and/or low molecular weight hydrocarbons.) | 649-197-00-0 | 270-667-2 | 68476-26-6 | C1 | M2 | |
| Fuel gases, crude oil of distillates; Petroleum gas (A complex combination of light gases produced by distillation of crude oil and by catalytic reforming of naphtha. It consists of hydrogen and hydrocarbons having carbon numbers predominantly in the range of C₁ through C₄ and boiling in the range of approximately − 217 °C to − 12 °C.) | 649-198-00-6 | 270-670-9 | 68476-29-9 | C1 | M2 | |
| Hydrocarbons, C3–4; Petroleum gas | 649-199-00-1 | 270-681-9 | 68476-40-4 | C1 | M2 | |
| Hydrocarbons, C4–5; Petroleum gas | 649-200-00-5 | 270-682-4 | 68476-42-6 | C1 | M2 | |
| Hydrocarbons, C2–4, C₃-rich; Petroleum gas | 649-201-00-0 | 270-689-2 | 68476-49-3 | C1 | M2 | |
| Petroleum gases, liquefied; Petroleum gas (A complex combination of hydrocarbons produced by the distillation of crude oil. It consists of hydrocarbons having carbon numbers predominantly in the range of C₃ through C₇ and boiling in the range of approximately −40 °C to 80 °C.) | 649-202-00-6 | 270-704-2 | 68476-85-7 | C1 | M2 | |
| Petroleum gases, liquefied, sweetened; Petroleum gas (A complex combination of hydrocarbons obtained by subjecting liquefied petroleum gas mix to a sweetening process to convert mercaptans or to remove acidic impurities. It consists of hydrocarbons having carbon numbers predominantly in the range of C₃ through C₇ and boiling in the range of approximately −40 °C to 80 °C.) | 649-203-00-1 | 270-705-8 | 68476-86-8 | C1 | M2 | |
| Gases (petroleum), C3–4, isobutane-rich; Petroleum gas (A complex combination of hydrocarbons from the distillation of saturated and unsaturated hydrocarbons usually ranging in carbon numbers from C₃ through C₆, predominantly butane and isobutane. It consists of saturated and unsaturated hydrocarbons having carbon numbers in the range of C₃ through C₄, predominantly isobutane.) | 649-204-00-7 | 270-724-1 | 68477-33-8 | C1 | M2 | |
| Distillates (petroleum), C3–6, piperylene-rich; Petroleum gas (A complex combination of hydrocarbons from the distillation of saturated and unsaturated aliphatic hydrocarbons usually ranging in the carbon numbers C₃ through C₆. It consists of saturated and unsaturated hydrocarbons having carbon numbers in the range of C₃ through C₆, predominantly piperylenes.) | 649-205-00-2 | 270-726-2 | 68477-35-0 | C1 | M2 | |
| Gases (petroleum), butane splitter overheads; Petroleum gas (A complex combination of hydrocarbons obtained from the distillation of the butane stream. It consists of aliphatic hydrocarbons having carbon numbers predominantly in the range of C₃ through C₄.) | 649-206-00-8 | 270-750-3 | 68477-69-0 | C1 | M2 | |
| Gases (petroleum), C2–3; Petroleum gas (A complex combination of hydrocarbons produced by the distillation of products from a catalytic fractionation process. It contains predominantly ethane, ethylene, propane, and propylene.) | 649-207-00-3 | 270-751-9 | 68477-70-3 | C1 | M2 |
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