Identifying World Customs Organization (WCO) Harmonized Codes

Identifying World Customs Organization (WCO) Harmonized Codes
Trinidad and Tobago October 2011 Chaconia flower

Objectives of a correct Harmonized System (HS) classification
Uniform information. Same tariff treatment for all importers of the same substance. Information gathering is less complex. Correct data reporting pursuant to Art. 7 of the Montreal Protocol Licensing System Complete Statistics

HARMONIZED SYSTEM (HS)
The Harmonized Commodity Description and Coding System, generally referred to as "Harmonized System" or simply "HS“. Is a multipurpose international product nomenclature developed under the auspices of the World Customs Organization (WCO), an independent intergovernmental body. The tariff schedule containing the headings, subheadings and the corresponding number codes, the notes to the Sections, of the Chapters and the Subheadings, as well as the General Rules for the interpretation of the HS.

THE HS CONTAINS 21 SECTIONS 96 CHAPTERS 1.200 HEADINGS 5,000 six figure groups called Subheadings 124 CONTRACTING PARTIES AND ONE CUSTOMS UNION. 202 COUNTRIES USE THEIR TARIFF SCHEDULE.

GOVERNMENTS USE HS FOR: Exchange of trade data. Establish duties and other taxes. Control of regulated substances. Development of Rules of Origin. Preparation of statistics. Price and quota controls. Economic research and analysis.

All countries must classify the same substance under the same Subheading Chapter Heading Subheading

The Harmonized System is based on a fundamental principle that goods are classified by what they are In some cases, end-use is considered when a product is specifically constructed for it. General Rule Nº1 for the interpretation of the Harmonized System: The titles of Sections, Chapters and sub-Chapters are provided for ease of reference only; for legal purposes, classification shall be determined according to the terms of the headings and any relative Section or Chapters Notes.

Classification analysis of unmixed substances
CHAPTER 29: ORGANIC CHEMICALS Definition of unmixed substances Legal Note N.º1:

Classification analysis of unmixed substances Note 1 of Chapter 29, continuation
Except where the context otherwise requires, the headings of this Chapter apply only to: Separate chemically defined organic compounds, whether or not containing impurities; Mixtures of two or more isomers of the same organic compound (whether or not containing impurities), except mixtures of acyclic hydrocarbon isomers (other than stereoisomers), whether or not saturated (chapter 27) The products of headings 2936 to 2939 or the sugar ethers, sugar acetals and sugar esters, and their salts, of heading 2940, or the products of heading 2941, whether or not chemically defined; Products mentioned in (a), (b) or (c) above dissolved in water; Products mentioned in (a), (b) or (c) above dissolved in other solvents provided that the solution constitutes a normal and necessary method of putting up these products adopted solely for reasons of safety or for transport and that the solvent does not render the product particularly suitable for specific use rather than for general use; The products mentioned in (a), (b), (c), (d) or (e) above with an added stabilizer (including an anticaking agent) necessary for their preservation or transport; (g) The products mentioned in (a), (b), (c), (d), (e) or (f) above with an added antidusting agent or a coloring or odoriferous substance added to facilitate their identification or for safety reasons, provided that the additions do not render the product particularly suitable for specific use rather than for general use;

Except where the context otherwise requires, the headings of this Chapter apply only to: Separate chemically defined organic compounds, whether or not containing impurities; Mixtures of two or more isomers of the same organic compound (whether or not containing impurities), except mixtures of acyclic hydrocarbon isomers (other than stereoisomers), whether or not saturated (chapter 27) The products of headings 2936 to 2939 or the sugar ethers, sugar acetals and sugar esters, and their salts, of heading 2940, or the products of heading 2941, whether or not chemically defined; Products mentioned in (a), (b) or (c) above dissolved in water; Products mentioned in (a), (b) or (c) above dissolved in other solvents provided that the solution constitutes a normal and necessary method of putting up these products adopted solely for reasons of safety or for transport and that the solvent does not render the product particularly suitable for specific use rather than for general use; The products mentioned in (a), (b), (c), (d) or (e) above with an added stabilizer (including an anticaking agent) necessary for their preservation or transport; (g) The products mentioned in (a), (b), (c), (d), (e) or (f) above with an added antidusting agent or a coloring or odoriferous substance added to facilitate their identification or for safety reasons, provided that the additions do not render the product particularly suitable for specific use rather than for general use; Separate chemically defined organic compounds, whether or not containing impurities;

1,1-dichloride-1-fluoroethane
Classification analysis of unmixed substances Note 1 of Chapter 29, continuation Substance consisting of a molecular species (e.g. Covalent or Ionic) whose composition is defined by a constant relationship between its elements, and is represented by a single structural diagram Example: CH3CFCl2 1,1-dichloride-1-fluoroethane (HCFC-141b) Separate chemically defined compound Impurities Exclusively applied to substances whose presence in the chemical compound is exclusively and directly due to the manufacturing process (including purification). These substances may come from: Unreacted substances, Impurities found in the reagents, Reactive agents used in the manufacturing process (including purification), By-products.

Except where the context otherwise requires, the headings of this Chapter apply only to: Separate chemically defined organic compounds, whether or not containing impurities; Mixtures of two or more isomers of the same organic compound (whether or not containing impurities), except mixtures of acyclic hydrocarbon isomers (other than stereoisomer), whether or not saturated (Chapter 27); The products of heading Nos to or the sugar ethers and sugar esters and their salts, of heading No , or the products of heading No , whether or not chemically defined; The products mentioned in (a), (b) or (c) above dissolved in water; The products mentioned in (a), (b) or (c) above dissolved in other solvents provided that the solution constitutes a normal and necessary method of putting up these products adopted solely for reasons of safety or for transport and that the solvent does not render the product particularly suitable for specific use rather than for general use; The products mentioned in (a), (b), (c), (d) or (e) above with an added stabilizer (including an anti-caking agent) necessary for their preservation or transport; The products mentioned in (a), (b), (c), (d), (e) or (f) above with an added anti-dusting agent or a coloring or odoriferous substance added to facilitate their identification or for safety reasons, provided that the additions do not render the product particularly suitable for specific use rather than for general use;; (b) Mixtures of two or more isomers of the same organic compound (whether or not containing impurities), except mixtures of acyclic hydrocarbon isomers (other than stereoisomers), whether or not saturated (chapter 27); Isomer: Compound mixtures presenting the same chemical function or the same chemical functions, provided that these isomers coexist naturally or are formed simultaneously during the same synthesis operation.

Except where the context otherwise requires, the headings of this Chapter apply only to: Separate chemically defined organic compounds, whether or not containing impurities; Mixtures of two or more isomers of the same organic compound (whether or not containing impurities), except mixtures of acyclic hydrocarbon isomers (other than stereoisomers), whether or not saturated (Chapter 27); The products of heading Nos to or the sugar ethers and sugar esters and their salts, of heading No , or the products of heading No , whether or not chemically defined; The products mentioned in (a), (b) or (c) above dissolved in water; The products mentioned in (a), (b) or (c) above dissolved in other solvents provided that the solution constitutes a normal and necessary method of putting up these products adopted solely for reasons of safety or for transport and that the solvent does not render the product particularly suitable for specific use rather than for general use; The products mentioned in (a), (b), (c), (d) or (e) above with an added stabilizer (including an anti-caking agent) necessary for their preservation or transport; The products mentioned in (a), (b), (c), (d), (e) or (f) above with an added anti-dusting agent or a coloring or odoriferous substance added to facilitate their identification or for safety reasons, provided that the additions do not render the product particularly suitable for specific use rather than for general use; c) The products of heading Nos to or the sugar ethers and sugar esters and their salts, of heading No , or the products of heading No , whether or not chemically defined;

Except where the context otherwise requires, the headings of this Chapter apply only to: Separate chemically defined organic compounds, whether or not containing impurities; Mixtures of two or more isomers of the same organic compound (whether or not containing impurities), except mixtures of acyclic hydrocarbon isomers (other than stereoisomers), whether or not saturated (Chapter 27); The products of heading Nos to or the sugar ethers and sugar esters and their salts, of heading No , or the products of heading No , whether or not chemically defined; The products mentioned in (a), (b) or (c) above dissolved in water; The products mentioned in (a), (b) or (c) above dissolved in other solvents provided that the solution constitutes a normal and necessary method of putting up these products adopted solely for reasons of safety or for transport and that the solvent does not render the product particularly suitable for specific use rather than for general use; The products mentioned in (a), (b), (c), (d) or (e) above with an added stabilizer (including an anti-caking agent) necessary for their preservation or transport; The products mentioned in (a), (b), (c), (d), (e) or (f) above with an added anti-dusting agent or a coloring or odoriferous substance added to facilitate their identification or for safety reasons, provided that the additions do not render the product particularly suitable for specific use rather than for general use l; d) The products mentioned in (a), (b) or (c) above dissolved in water;

Except where the context otherwise requires, the headings of this Chapter apply only to: Separate chemically defined organic compounds, whether or not containing impurities; Mixtures of two or more isomers of the same organic compound (whether or not containing impurities), except mixtures of acyclic hydrocarbon isomers (other than stereoisomers), whether or not saturated (Chapter 27); The products of heading Nos to or the sugar ethers and sugar esters and their salts, of heading No , or the products of heading No , whether or not chemically defined; The products mentioned in (a), (b) or (c) above dissolved in water; The products mentioned in (a), (b) or (c) above dissolved in other solvents provided that the solution constitutes a normal and necessary method of putting up these products adopted solely for reasons of safety or for transport and that the solvent does not render the product particularly suitable for specific use rather than for general use; The products mentioned in (a), (b), (c), (d) or (e) above with an added stabilizer (including an anti-caking agent) necessary for their preservation or transport; The products mentioned in (a), (b), (c), (d), (e) or (f) above with an added anti-dusting agent or a coloring or odoriferous substance added to facilitate their identification or for safety reasons, provided that the additions do not render the product particularly suitable for specific use rather than for general use; e) The products mentioned in (a), (b) or (c) above dissolved in other solvents provided that the solution constitutes a normal and necessary method of putting up these products adopted solely for reasons of safety or for transport and that the solvent does not render the product particularly suitable for specific use rather than for general use;

Except where the context otherwise requires, the headings of this Chapter apply only to: Separate chemically defined organic compounds, whether or not containing impurities; Mixtures of two or more isomers of the same organic compound (whether or not containing impurities), except mixtures of acyclic hydrocarbon isomers (other than stereoisomers), whether or not saturated (Chapter 27); The products of heading Nos to or the sugar ethers and sugar esters and their salts, of heading No , or the products of heading No , whether or not chemically defined; The products mentioned in (a), (b) or (c) above dissolved in water; The products mentioned in (a), (b) or (c) above dissolved in other solvents provided that the solution constitutes a normal and necessary method of putting up these products adopted solely for reasons of safety or for transport and that the solvent does not render the product particularly suitable for specific use rather than for general use; The products mentioned in (a), (b), (c), (d) or (e) above with an added stabilizer (including an anti-caking agent) necessary for their preservation or transport; The products mentioned in (a), (b), (c), (d), (e) or (f) above with an added anti-dusting agent or a coloring or odoriferous substance added to facilitate their identification or for safety reasons, provided that the additions do not render the product particularly suitable for specific use rather than for general use; f) The products mentioned in (a), (b), (c), (d) or (e) above with an added stabilizer (including an anti-caking agent) necessary for their preservation or transport;

Except where the context otherwise requires, the headings of this Chapter apply only to : Separate chemically defined organic compounds, whether or not containing impurities; Mixtures of two or more isomers of the same organic compound (whether or not containing impurities), except mixtures of acyclic hydrocarbon isomers (other than stereoisomers), whether or not saturated (Chapter 27); The products of heading Nos to or the sugar ethers and sugar esters and their salts, of heading No , or the products of heading No , whether or not chemically defined; The products mentioned in (a), (b) or (c) above dissolved in water; The products mentioned in (a), (b) or (c) above dissolved in other solvents provided that the solution constitutes a normal and necessary method of putting up these products adopted solely for reasons of safety or for transport and that the solvent does not render the product particularly suitable for specific use rather than for general use; The products mentioned in (a), (b), (c), (d) or (e) above with an added stabilizer (including an anti-caking agent) necessary for their preservation or transport; The products mentioned in (a), (b), (c), (d), (e) or (f) above with an added anti-dusting agent or a coloring or odoriferous substance added to facilitate their identification or for safety reasons, provided that the additions do not render the product particularly suitable for specific use rather than for general use; g) The products mentioned in (a), (b), (c), (d), (e) or (f) above with an added anti-dusting agent or a coloring or odoriferous substance added to facilitate their identification or for safety reasons, provided that the additions do not render the product particularly suitable for specific use rather than for general use;

Example: Due to safety reasons 2% chloropicrin (odoriferous substance) is added to methyl bromide. When the content is more than 2%, it is no longer considered an unmixed substance. Chloropicrin acts as fungicide, therefore, renders it more appropriate for a specific uses and is classified as a mixture (3808.)

Classification analysis of unmixed substances
Section VI (Chapters 28 a 38) PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES Legal Note Nº 2 of Section VI …., any goods classifiable in heading 3004, 3005, 3006, 3212, 3303, 3304, 3305, 3306, 3307, 3506, 3707 or 3808 by reason of being put up in measured doses or for retail sale are to be classified in those headings and in no other heading of the tariff schedule.

Classification analysis of unmixed substances. section VI, continuation
Methyl bromide 98% (with 2% chloropicrin as odoriferous substance) packaged in 1 or 11/2 pounds cans, represent one dosage, therefore, according to the stipulations of Note 2 of Section VI, it cannot be classified by Chapter 29. In accordance with the Note, it classifies by 3808. Example

Classification analysis of unmixed substances. section VI, continuation
It can only be classified in chapter 29, when it is packaged in containers with valves that allow repeated use. In 30, 50, 100 Kg. cylinders or in iso-tanks (tank containers). 21

Classification analysis of unmixed substances. HCFC
2903. HALOGENATED derivatives OF HYDROCARBONS. Saturated chlorinated derivatives of acyclic hydrocarbons: Chloromethane (methyl chloride) and chloroethane (ethyl chloride) Cichloromethane (methylene chloride) Chloroform (trichloromethane) Carbon tetrachloride (Annex B, Group II) Ethylene dichloride (ISO) (1,2-dichlorideetano) Other (Saturated chlorinated derivatives of acyclic hydrocarbons) ,1,1-Trichloroethane (methyl chloroform) (Annex B, Group III) ,1,2-Trichloroethane Others Only with chlorine Control

Classification analysis of unmixed substances. HCFC, continuation
Unsaturated chlorinated derivatives of acyclic hydrocarbons: Note: It does not contain ODS Vinyl chloride (chloroethylene) –Trichloroethylene Tetrachloroethylene (perchloroethylene) –Other (Unsaturated chlorinated derivatives of acyclic hydrocarbons) Only unsaturated and only with chlorine Control

Fluorinated, brominated or iodinated derivatives of acyclic hydrocarbons: ethylene dibromide (ISO) (1,2-dibromoethane). Others (fluorinated derivatives, brominated derivatives y iodinated derivatives, of acyclic hydrocarbons). Fluorinated derivatives: 1,1,1,2-Tetrafluoroethane (R134a); R245fa, ,1,3,3,3- Pentafluoro-2-(trifluoromethyl)-prop-1-ene, etc. Brominated derivatives: methyl bromide (bromomethane), bromoethane. Iodinated derivatives: Iodomethane, iodoform (triiodomethane), Only with fluorine, bromine or iodine R256fa, 1,1,1,3,3-pentafluorpropane NOTE: This heading (2903) excludes products put up as charges for fire-extinguishers or put up in fire-extinguishers grenades, of heading 3813.

Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens: trichlorofluoromethane (R11) –dichloridedifluoromethane (R12) Annex A, Group I Trichlorotrifluoroethanes (R113) Dichlorotetrafluoroethanes and chloropentafluoroethane (R114 & R115) Other derivatives perhalogenated only with fluorine and chlorine (Annex B Group I) Bromochlorodifluoromethane, bromotrifluoromethane and (Halons. Annex A, dibromotetrafluoroethanes Group II) Other perhalogenated derivatives (This are not ODS. The ODS, for containing fluorine and chlorine, must be classified in , more specific). Others (Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens): R22, R123, R124, R141b, R142b and Bromochloromethane Control

Classification analysis of unmixed substances.
Blend: Contains R22 And ???? Chemical composition of a contaminated mixture labelled as R-134a analysed in Mozambique. (EIA) Blend: butane & propane classified as R134a!!!!!!

Classification analysis of mixtures containing ODS
Remember Note 1 of Chapter 29: Unless provided otherwise, headings in this chapter only include: a) Separate chemically defined organic compounds, whether or not containing impurities. Because of this note, since mixtures are not a separate chemically defined compound, they are excluded from Chapter 29 and in general classify, in the other chapters of Section VI or VII

Classification analysis of mixtures containing ODS, Chapter 38
Chapter notes. 1- This Chapter does not cover: Separate chemically defined elements or compounds with the exception of the following (generally, chapter 28 or 29) (1) Artificial graphite (heading No.3801.) (2) Insecticides, rodenticides, fungicides, herbicides, anti-sprouting products and plant-growth regulators, disinfectants and similar products, put up as described in heading No (formulated or in doses) (3) products put up as charges for fire-extinguishers or put in fire-extinguishers grenades (heading No.3813)

Classification analysis of mixtures containing ODS, Heading 3808.
3808- INSECTICIDES, RODENTICIDES, FUNGICIDES, HERBICIDES, ANTI-SPROUTING PRODUCTS AND PLANT-GROWTH REGULATORS, DISINFECTANTS AND SIMILAR PRODUCTS, PUT UP IN FORMS OR PACKAGINGS FOR RETAIL SALE OR AS PREPARATIONS OR ARTICLES (FOR EXAMPLE, SULPHUR- TREATED BANDS, WICKS AND CANDLES, AND FLY-PAPERS) Insecticides Fungicides Herbicides, anti-sprouting products and plant-growth regulators Disinfectants Others Methyl bromide insecticides (ECO GAS –Spain- R124 94,1% & ethylene oxide 8,6%) Control

Classification analysis of mixtures containing ODS, Subheading 3813.00
PREPARATIONS AND CHARGES FOR FIRE EXTINGUISHERS; CHARGED FIRE-EXTINGUISHING GRENADES. Charges for fire-extinguishers: light-weight containers (of glass, thin sheet-metal, etc.) designed to be themselves incorporated into fire-extinguishers, whether they contain: Preparations Two or more unmixed products, separated by a partition and intended to be put into contact al the moment of use A single unmixed product. Charged fire-extinguishing grenades: containers charged with fire-extinguishing products (whether or not mixed), and used directly without incorporation in fire extinguishing appliances. These are glass or pottery containers which are thrown into the heart of the fire and which break freeing their contents, or glass containers the end of which need only be broken between the fingers to project the extinguishing product. Note: Fire-extinguishers, including portables, charged or not, are contained in the heading (Annex D of MP)

Classification analysis of mixtures containing ODS, Subheading 3813
Classification analysis of mixtures containing ODS, Subheading , continuation. HCFC act by inhibiting the reaction

Classification analysis of mixtures containing ODS. Subheading 3813
Classification analysis of mixtures containing ODS. Subheading , continuation. act by inhibiting the reaction HCFC

Classification analysis of mixtures containing ODS. Subheading 3814.00
ORGANIC COMPOSITE SOLVENTS AND THINNERS, NOT ELSEWHERE SPECIFIED OR INCLUDED; PREPARED PAINT OR VARNISH REMOVERS. This heading includes, provided that they are not separate chemically defined chemicals and are not included in a more specific heading, organic solvents and diluents organic (although containing 70% by weight or more of oil petroleum). Are more or less volatile liquid used, inter alia, for the preparation of varnishes and paints or the degreasing of mechanical parts, etc. Blends containing methyl chloroform and/or carbon tetrachloride and/or liquid HCFC

Diagnostic or laboratory reagents on a backing and prepared diagnostic or laboratory reagents whether or not on a backing, other than those of heading No or 30.06 Reagents: The reagents of this heading are on a backing or in the form of preparations, therefore they are more than a single constituent. They may consist of admixtures of two or more reagents or of single reagent dissolved in solvents other than water. Reagents of this heading may also be put up in the form of kits, consisting of several components composed of various components. The products of this heading should de clearly identifiable as being for use only as diagnostic or laboratory reagents. This must be clear from their composition, labeling, instructions for in vitro or laboratory use, etc.

Classification analysis of mixtures containing ODS. Subheading , continuation Certified reference materials of this heading are reference materials intended to calibrate a device, evaluate a measurement method or attribute values to materials. For the classification of certified reference materials, heading has priority over any other tariff schedule, except for the products of Chapters 28 ó 29. REFERENCE MATERIALS This is why unmixed substances, although they are used as references, must be classified under Chapter 28 or 29.

Classification analysis of mixtures containing ODS. Heading 3824.
3824. PREPARED BINDERS FOR FOUNDRY MOULDS OR CORES; CHEMICAL PRODUCTS AND PREPARATIONS OF THE CHEMICAL OR ALLIED INDUSTRIES (INCLUDING THOSE CONSISTING OF MIXTURES OF NATURAL PRODUCTS), NOT ELSEWHERE SPECIFIED OR INCLUDED. IMPORTANT: Before classifying a mixture under this heading, you must have the certainty that is not expressed or contained elsewhere (other heading).

Classification analysis of mixtures containing ODS
Classification analysis of mixtures containing ODS. Heading 3824, continuation. Example NASF S III mixture that we saw previously, contained HCFC (R22, R123 and R124). As we will see, mixtures containing halogenated derivatives of methane, ethane or propane are classified in Subheading But this mixture, since it is especially prepared for extinguishers, is under heading 3813 (more specific). Therefore, It must be classified in this heading and never under heading 3824. Remember: NOT ELSEWHERE SPECIFIED OR INCLUDED.

Classification analysis of mixtures containing ODS. Heading 3824.7
Subheading Explanatory Note. Subheadings to : Subheadings to includes mixtures containing halogenated derivatives of methane, ethane or propane, including the mixtures of these halogenated derivatives with other substances. The trade of mixtures containing halogenated derivatives of methane, ethane or propane mixtures, is controlled by the Montreal Protocol regarding ozone depleting substances. We must distinguish “containing” from “based on”. Under this subhedings, is enough if the blend contains an halogenated derivative of methane, ethane or propane, including the mixtures of these halogenated derivatives with other substances. Does not need to be based on (Principal component).

Mixtures containing halogenated derivatives of methane, ethane or propane: Containing chlorofluorocarbons (CFCs), whether or not containing hydrochlorofluorocarbons (HCFCs), perfluorocarbaons (PFCs) or hydrofluorocarbons (HFCs). R502: CFC115 (51.2%) y HCFC (48.8%) This blends must contain CFC

AZEOTROPIC MIXTURES(1)
Classification analysis of mixtures containing ODS. Heading , summary M E Z C L A S A Z E O T R O P I C A S(1) Refrigerante component 1 component 2 P.A. SIM R-500 R % R-152a % R-501 R % R % R-502 R % R % R-503 R % R % R-504 R % R % R-505 R % R % R-506 R % R % AZEOTROPIC MIXTURES(1) Refrigerant component component Sub-heading (1) Liquid blends with constant boiling points

Classification analysis of mixtures containing ODS. Heading 3824
Classification analysis of mixtures containing ODS. Heading , continuation –Containing: Bromochlorodifluoromethane Bromotrifluoromethane Bibromotetrafluoroethanes Containing hydrobromofluorocarbons (HBFC) Halon 1211 Annex A – Group II Halon 1301 Halon 2402 Annex C – Group II

Containing hydrochlorofluorocarbons (HCFCs), whether or not containing perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs) but not containing chlorofluorocarbons. IMPORTANT: MUST NOT CONTAIN CFCs. May contain other compounds. For example, R406A contains Isobutane (R600a). Remember the Note to Subheadings to Subheadings to include mixtures containing halogenated derivatives of methane, ethane or propane, including mixtures of these halogenated derivatives with other substances.

(*) R-C318: perfluorocyclobutane.
Classification analysis of mixtures containing ODS. Heading Summary. ZEOTROPIC MIXTURES Refrigerant component component component component Sub-heading R-401A (MP-39) R % R % R-152a 13% XXXXX R-401B (MP-66) R % R % R-152a 11% R-401C R % R % R-152a 15% R-402A (HP-80) R % R % R % R-402B (HP-81) R % R % R-403A R % R % R % R-403B R % R % R-405A R % R-142b 2.5% R-152a 7% C318 5,5% (*) R-406A R % R-142b 41% HC-600a 4% (*) R-C318: perfluorocyclobutane.

ZEOTROPIC MIXTURE, continuation
Classification analysis of mixtures containing ODS. Subheading Summary. ZEOTROPIC MIXTURE, continuation Refrigerant component component component 3 component Subheading R-408A R % R-143a 46% R % XXXXX R-409A R % R % R-142b 15% R-409B R % R-142b 10% R-411A R % R-152a 11% HC % R-411B R % R-152a 3% HC % R-412A R % R-142b 25% FC % R-414B R % R % R-142b 9.5% HC-600a ,5% R-415B R % R-152a 75% YH12 R % R-142b 65% R-152a 25% DYR-7 R % R142b 25% R21 20% UR12 R ,% R % NOTE: Always take samples of the liquid phase. Invert can

Classification analysis of mixtures containing ODS. Subheading , continuation Some blends that classify under this Subheading R409A R408A R402A R401B

Classification analysis of mixtures containing ODS. Subheading , continuation Some blends that classify under this Subheading R22, 10% R142b, 65% R152a, 25% R22, 55%, R142b, 41% R600a, 4%

– Containing carbon tetrachloride. IMPORTANT: Remember 1- Laboratory compound reagents and reference standards containing CCl4, must be classified under Subheading 2- Diluents and solvents under Subheading

–Containing 1,1,1-trichloroethane (methyl chloroform). IMPORTANT: Remember 1- Laboratory compound reagents and reference standards containing methyl chloroform must be classified under Subheading 2- Diluents and solvents under Subheading

–Containing bromomethane (methyl bromide) or bromochloromethane . Annex E Bromomethane BrCH3 Annex C – Group III Bromochloromethane H2CBrCl

–Containing perfluorocarbons (PFC) or hidrofluorocarburos (HFC), but do not contain chlorofluorocarbons (CFC) or hydrochlorofluorocarbons(HCFC). These are blends containing only PFC o HFC (they do not contain Chlorine and/or Bromine)

AZEOTROPIC MIXTURES (1)
Classification analysis of mixtures containing ODS. Subheading , summary AZEOTROPIC MIXTURES (1) Refrigerant component component Subheading R-507 (AZ-50) R % R-143a % R-508a R % R % R-508b (Suva 95) R % (1) Liquid mixture with a constant boiling point

ZEOTROPIC MIXTURES, continuation
Classification analysis of mixtures containing ODS. Subheading , Summary. ZEOTROPIC MIXTURES, continuation Refrigerant component component component component Subheading R-404a (HP-62) R-143a 52% R % R-134a 4% XXXXX R-407a R-134a 40% R % R % R-407b R % R-134a 20% R % R-407c R-134a 52% R % R % R-407d R-134a 70% R % R % R-410a R % R % R-413a R-134a 88% R % R600a % R-417a R-134a 53% R % R-600a 4% NOTE: Always take samples of the liquid phase. Invert can

– Others (Mixtures containing halogenated derivatives of methane, ethane or propane) Examples: 1. Mixtures containing derivatives only with chloride, other than methyl chloroform or carbon tetrachloride. 2. Mixtures with iodinated derivatives (with or without F, Br and/or Cl). 3. Mixtures with derivatives with chloride and bromide not considered in the PM. 4. Etc.

– Others (chemical products and preparations of the chemical or allied industries -including those consisting of mixtures of natural products-, not elsewhere specified or included). Subheading includes chemicals products and other preparations of the chemical or allied industries which are unable to be classified in any other heading of the Section VI. Originally, before the fourth amendment (2007), this was the subheading where blends were classified.

Amendment 2012 Harmonized System
CHAPTER 29: Repeal subheadings to New Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens. Creation of new sub-headings to to separate: Chlorodifluoromethane (R22) Dichlorotrifluoroethanes (R123) Dichlorofluoroethanes (R141b) Chlorodifluoroethanes (R142b) Dichloropentafluoropropanes (R225) Renumbering of the subheading as for: Bromochlorodifluoromethane (Halon 1211), Bromotrifluoromethane (Halon 1301) and dibromotetrafluoroethanes (Halon 2402) R124 is not Include!!

Amendment 2012 Harmonized System
CHAPTER 29: Unification of subheading a 45 in new subheading : Other derivatives perhalogenated only with fluorine and chlorine. Trichlorofluoromethane (R11), Dichlorodifluoromethane (R12), Annex A, Trichlorotrifluoroethanes (R113), Group I Dichlorotetrafluoroethanes (R114), Chloropentafluoroethane (R115) Other derivatives perhalogenated only with fluorine and chlorine: Annex B, Group I (CFC) Renumbering the subheading as for: Other perhalogenated derivatives (not only with fluorine and chlorine: ) Creation of the new subheadings for: Others (halogenated derivatives of the acyclic hydrocarbons containing two or more different halogens. R124, the rest of Annex C, Group I and Bromochloromethane)

Polyol Viscous liquids whose main chemical characteristic are hydroxyl (OH) groups composed of oxygen and hydrogen. These Groups react with the isocyanate groups (N=C=O) of the isocyanate giving place to urethane groups. It is worth distinguishing between polyetherpolyol and polyesterpolyol. POLYETHERPOLYOL: obtained from a reaction of polyhydroxylated alcohols (i.e., glycols, glycerin, raw sugar) or amine (i.e., ethylendiamine) with alkylene oxide. Polyols used for manufacturing rigid foam are mostly obtained from propylene oxide. POLYESTERPOLYOL: obtained from the reaction of polyvalent carboxylic acids (i.e., phthalic acid, terephthalic acid or adipic acid) with similar glycols, glycerin or polyalcohols. Water and polyol with ester structure are obtained.

Polyol, continuation Functionality of a polyol
Indicates the number of hydroxyl groups existing in the molecule. If the polyol is a mixture of components of different functionalities, then the mean functionality is indicated. The parts of a molecule that are capable of reacting, i.e., hydroxyl groups, are called functional groups. The content in hydroxyl groups in a compound is called hydroxyl index or OH index.

Polyol: Formation of a polyurethane
The manufacture of rigid PUR foam requires two main components that are liquid, a polyol and a isocyanate as well as an blowing agent. Generally speaking, an blowing agent and other auxiliaries, such as activators (reaction accelerators), foam stabilizers, flame retardants, etc. are mixed with the polyol. The polyaddition reaction that takes place when the polyol and the isocyanate are mixed leads to the formation of urethane structure macromolecules Heat Also the water present reacts with the isocynate to form a polyurea and carbon dioxide, which acts as an expansion agent, being able to be the only one present.

Classification analysis of polyol containing ODS (R141b)
(poliuretano). Section VII (chapters 39 and 38) products of the chemical or allied industries Legal Note N.º 1 of Section VII Goods put up in sets consisting of two or more separate constituents, some or all of which fall in this section and are intended to be mixed together to obtain a product of section VI or VII, are to be classified in the heading appropriate to that product, provided that the constituents are: a) Having regard to the manner in which they are put up, clearly identifiable as being intended to be used together without first being repacked; (b) Entered together (presented simultaneously); and (c) Identifiable, whether by their nature or by the relative proportions in which they are present, as being complementary one to another.

Classification analysis of polyol containing ODS (R141b), continuation
Systems: POLYOL + ISOCYANATE Systems are usually formed by two components: On the one hand, polyol (A) and on the other, isocyanate (B). These components are mixed in a determinate proportion, and therefore, in systems, are presented in this proportion. Summarizing, if the final mixture, has 1 part of component A and 1.4 parts of component B, for each ton of component A there will be 1.4 tons of component B. Therefore, a system, satisfies the requirements of Legal Note Nº 3 of Section VI: a) Clearly identifiable by their packaging, as intended to be used together without prior reconditioning; b) Presented simultaneously; and c) Complementary one to another.

As set out in the note, the systems are classified in the heading appropriate for the product formed in the reaction. As the system will react forming a polyurethane, it should be classified as such. SYSTEMS FORMED BY: POLYOL + ISOCYANATE CLASSIFY AS POLYURETHANE: Subheading: If a system contains R141b as an expansion (blowing) agent, an import or export license corresponds. There should be some sort of intervention of the Agency in charge of ODS controls.

Examples of Systems with R141b:

More examples of systems with R141b:

More examples of systems with R141b: BASF: ELASTOPOR System 480 ELASTOPOR System 486 ELASTOPOR System 488 ELASTOPOR System 491 ELASTOPOR System 491 7AF ELASTOPOR RAP System F DOW: VORACOR System CD923 VORACOR System CS 822 HUNTSMAN: ELASTOPOR System XBP F ELASTOPOR System R480-AF-RA

Legal Note Nº 3 of Chapter 39 Headings to only classify products of the following categories obtained by chemical synthesis: a) liquid synthetic polyolefins distilling at a proportion lower than 60% in volume at 300°C referring to millibars when a low pressure distillation method is used (headings and 39.02); b) Slightly polymerized resins of the coumarone-indene resin type (heading 39.11); c) other synthetic polymers having at least 5 monomeric units, on average; d) silicones (heading 39.10); e) resoles (heading 39.09) and other prepolymers.

POLYETHERPOLYOL POLYESTHERPOLYOL When having 5 or more monomeric units, are classified in the Subheading: Other polyethers When having 5 or more monomeric units, are classified in the Subheading: Others (Others polyesters) THE OTHER POLYOLS are those that do not satisfy Legal Note Nº 3 (have less than 5 monomeric units, normally sugars) are classified under Subheading: Containing hydrochlorofluorocarbons (HCFC – R141b), including with perfluorocarbons (PFC) or hidrofluorocarburos (HFC), but do not contain chlorofluorocarbons (CFC). poliol derivados de sacarosa

Note sobre Prepolymers: Urethane prepolymers are those mixtures in where a portion of polyol reacts with an excess of isocyanate. Forming in this manner a liquid prepolymer. This prepolymer is in itself, a diisocyanate, but unlike the original (MDI), it has a high molecular weight, which depends on the used polyol, and a higher viscosity. This prepolymer is allowed to react with another polyol, which may or may not contain foaming agent to finally form a polyurethane. These prepolymers, do not contain a foaming agent. Los prepolímeros corresponden al Annex D del PM.

Examples of polyol with R141b: BAYER ( ) BAYMER PE 8570/B16 BAYMER PD 0529/B16 BAYMER RB 7591/B26 BAYMER PE 8568/B30 BAYTHERM PE 7749/B24 BAYTHERM RF 7799/B25 HUNTSMAN ( ) RUBITHERM WS 15000 RUBITHERM LP 14404 DALTOFOAM TA 30139 RUBITHERM WS 18003 BASF ( ) ELASTOPOR R480 AF-RA. ELASTOPOR RAD F. ELASTOPOR XBP F.

MERCOSUR Tariff Schedule unmixed substances
2903 HYDROCARBONS HALOGENATED DERIVATES. 2903.1 -Saturated chlorinate derivatives of acyclic hydrocarbons: --Chloromethane (methyl chloride) y chloroethane (ethyl chloride) Chloromethane (methyl chloride) Chloroethane (ethyl chloride) --Dichloridemethane (methylene chloride) --Chloroform (trichloromethane) --Carbon tetrachloride --Ethylene dichloride (ISO) (1,2-dichlorideetano) --Others 1,1,1-Trichloroethane (methyl chloroform) 1,1,2-Trichloroethane Others

2903.2 -Unsaturated chlorinate derivatives of acyclic hydrocarbons: --Vinyl chloride (chloroethylene) --Trichloroethylene --Tetrachloroethylene (perchloroethylene) --Others 2903.3 -Fluorinated derivatives, brominated derivatives and iodinated derivatives, of acyclic hydrocarbons: --Ethylene dibromide (ISO) (1,2-dibromoethane) NOTE: This heading (2903) excludes products put up as charges for fire- extinguishers or put up in fire-extinguishers grenades, of heading 3813.

--Others fluorinated derivatives 1,1,1,2-Tetrafluoroethane (HFC-134a) 1,1,3,3,3-Pentafluoro-2-(trifluorometil)prop-1-eno Others Brominate derivatives bromomethane (BrCH3) iodinated derivatives Iodoethane Iodoform Others (with Iodine)

2903.4 -Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens: --trichlorofluoromethane (CFC-11) --dichloridedifluoromethane (CFC-12) --Trichlorotrifluoroethanes (CFC-113) --dichlorotetrafluoroethanes y chloropentafluoroethane (CFC-114 y CFC-115) --Others derivados perhalogenated only with flouride and chloride Clorotrifluoromethanes (CFC-13) Pentachlorofluoroethane (CFC-111) Tetrachlorodifluoroethanes (CFC-112) Propare perhalogenated derivatives, only with flouride and chloride HeptaChlorofluoropropanes (CFC-211) Hexachlorodifluoropropanes (CFC-212) Pentachlorotrifluoropropanes (CFC-213) Tetrachlorotetrafluoropropanes (CFC-214) Trichloropentafluoropropanes (CFC-215) dichloridehexafluoropropanes (CFC-216) Cloroheptafluoropropanes (CFC-217) Others (This position does not comprise ODS) Annex A Group I Annex B Group I

--Bromochlorodifluoromethane, bromotrifluoromethane and dibromotetrafluoroethanes (Halons) --Other perhalogenated derivatives (Position does not comprise ODS) --Others Derivatives of methanes, ethane or propane, halogenated only with F y Cl Chlorodifluoromethane R22 Clorofluoroethanes R151 Dichloridetrifluoroethanes R123 Chlorotetrafluoroethanes R124 Dichloridefluoroethanes r141b Clorodifluoroethanes r142b Dichloridepentafluoropropanes R225 Others Derivatives of methanes, ethane or propane, halogenated only with F and Br Bromochlorotrifluoroethanes Halotano (Not ODS) Others (Bromochloromethane) Annex C Group I

MERCOSUR Tariff Schedule Mixtures, heading 3808
Insecticides Presented in forms or exclusive direct use containers in domisanitary applications Containing bromomethane (methyl bromide) or bromochloromethane Others. Presented otherwise, containing bromomethane (methyl bromide) or bromochloromethane Others. fungicides. Presented in forms or exclusive diretect use containers in domisanitary applications Containing bromomethane (methyl bromide) or bromochloromethane Others Presented otherwise, containing bromomethane (methyl bromide) or bromochloromethane Others

MERCOSUR Tariff Schedule Mixtures, Subheading 3813.00
PREPARATIONS AND CHARGES FOR FIRE-EXTINGUISHERS; CHARGED FIRE-EXTINGUISHING GRENADES Containing bromochlorodifluoromethane, bromotrifluoromethane or dibromotetrafluoroethanes (Halons) Containing hydrobromofluorocarbons of methanes, ethane or propane (HBFC) (Annex C Group II) Containing hydrochlorofluorocarbonsdel methanes, ethane or propane (HCFC) (Annex c Group I) Containing bromochloromethane (Annex C Group III) Others

ORGANIC COMPOSITE SOLVENTS AND THINNERS, NOT ELSEWHERE SPECIFIED OR INCLUDED; PREPARED PAINT OR VARNISH REMOVERS. Containing chlorofluorocarbons of methane, ethane or propane (CFC), including those containing hydrochlorofluorocarbons (HCFC). Containing hydrochlorofluorocarbons of methane, ethane or propane (HCFC), but do not contain chlorofluorocarbons (CFC). Containing carbon tetrachloride, bromochloromethane or ,1,1- trichloroethane (methyl chloroform). Others

DIAGNOSTIC OR LABORATORY REAGENTS ON A BACKING AND PREPARED DIAGNOSTIC OR LABORATORY REAGENTS WHETHER OR NOT ON A BACKING, OTHER THAN THOSE OF HEADING NO OR Reagents for determining blood or urine components on paper backing, rolls, without an additional hydrophobic backing not appropriate for direct use Others

MERCOSUR Tariff Schedule Mixtures, continuation
Mixtures containing halogenated methane, ethane or propane derivatives – Containing chlorofluorocarbons (CFC), including hydrochlorofluoro carbons (HCFC), perfluorocarbons (PFC) o hidrofluorocarburos (HFC) Containing trichlorotrifluoroethanes (CFC-113) Others. (containing CFC) Containing bromochlorodifluoromethane, bromotrifluoromethane or dibromotetrafluoroethanes (Halons) Containing hydrobromofluorocarbons (HBFC) (Annex C Gpo. II) Containing hydrochlorofluorocarbons(HCFC including perfluorocarbons (PFC) o hidrofluorocarburos (HFC), but not containing chlorofluorocar bons (CFC) Containing chlorodifluoromethane (HCFC-22) and pentafluoroethane (HFC-125). Examples: R402A, R402B and R408A Containing chlorodifluoromethane (HCFC-22) y chlorotetrafluoro ethane (HCFC-124). Examples: R401A, R401B and R409A The others. Examples: R406A. YH12

Containing carbon tetrachloride. Containing 1,1,1-trichloroethane (methyl chloroform). Containing bromomethane (methyl bromide) or bomochloromethane. Containing perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs), but not containing chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs). Containing tetrafluoroethane y pentafluoroethane. Las demás. (containing PFC or HFC, but not CFC o HCFC) Las demás. (Mixtures containing halogenated methane, ethane or propane derivatives) (control) 81

Others, (chemical products and preparations of the chemical or allied industries including those consisting of mixtures of natural products-, not elsewhere specified or included). Products and preparations based on organic compounds, not elsewhere specified or included. Others. 82

Caribbean Community or CARICOM
CARICOM gathers Antigua and Barbuda, Bahamas, Barbados, Belize, Dominica, Grenada, Guyana, Haiti, Jamaica, Montserrat, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Suriname and Trinidad & Tobago. Countries participating as observers are Anguilla, Cayman Islands, Mexico, Venezuela, Aruba, Colombia, Netherlands Antilles, Bermudas, Dominican Republic and Puerto Rico, while the Virgin Islands are associate members.

Caribbean Community or CARICOM, unmixed substances
HS 2007 HEADING DESCRIPTION OF GOODS RATE OF DUTY UNIT (S) 29.03 Halogenated derivatives of hydrocarbons. Saturated chlorinated derivatives of acyclic hydrocarbons: Chloromethane (methyl chloride) and chloroethane (ethyl chloride) 0-5% kg dichloridemethane (methylene chloride) Chloroform (trichloromethane) Carbon tetrachloride Ethylene dichloride (ISO) (1,2 dichlorideethane) Other (Saturated chlorinated derivatives of acyclic hydrocarbons) 1,1,1-Trichloroethane (methylchloroform) CONTROL Unsaturated chlorinated derivatives of acyclic hydrocarbons: Vinyl chloride (chloroethylene) Trichloroethylene Tetrachloroethylene (perchloroethylene) Other (Unsaturated chlorinated derivatives of acyclic hydrocarbons)

Fluorinated, brominated or iodinated derivatives of acyclic hydrocarbons: Ethylene dibromide (ISO) (1,2 dibromoethane) 0-5% kg Other (methyl bromide) CONTROL Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens: Trichlorofluoromethane R11 Dichloridedifluoromethane R12 Trichlorotrifluoroethanes R113 Dichloridetetrafluoroethanes and chloropentafluoroethane R114 and R115 Does not have its own position NOTE: This heading (2903) excludes products put up as charges for fire-extinguishers or put up in fire-extinguishers grenades, of heading 3813.

Other derivatives perhalogenated only with fluorine and chlorine: Chlorotrifluoromethane 0-5% kg Pentachlorofluoroethane Tetrachlorodifluoroethanes Heptachlorofluoropropanes Hexachlorodifluoropropanes Pentachlorotrifluoropropanes Tetrachlorotetrafluoropropanes Trichloropentafluoropropanes Other: Dichloridehexafluoropropanes Chloroheptafluoropropanes Other (No ODS) CONTROL Bromochlorodifluoromethane, bromotrifluoromethane and dibromotetrafluoroethanes Other perhalogenated derivatives (No ODS) Annex B Group I Halons

Other: (Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens) Derivatives of methane, ethane or propane, halogenated only with fluorine and chlorine (All Annex C Group I) 0-5% kg Derivatives of methane, ethane or propane, halogenated only with fluorine and bromine Other (bromochloromethane) Halogenated derivatives of cyclanic, cyclenic or cycloterpenic hydrocarbons: 1,2,3,4,5,6-Hexachlorocyclohexane (HCH, (ISO)), including lindane (ISO, INN)

Caribbean Community or CARICOM, Mixtures headings 3813 and 3822
HS 2007 HEADING DESCRIPTION OF GOODS RATE OF DUTY UNIT(S) Preparations and charges for fire-extinguishers; charged fire-extinguishing grenades. CONTROL kg Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers Thinners Other Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, other than those of heading or 30.06; certified reference materials. 0-5%

Caribbean Community or CARICOM, Mixtures heading 3824.
Containing chlorofluorocarbons (CFCs), whether or not containing hydrochlorofluorocarbons (HCFCs), perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs) (Mixtures containing CFCs) 0-5% kg Containing bromochlorodifluoromethane, bromotrifluoromethane or dibromotetrafluoroethanes (Mixtures containing Halons) Containing hydrobromofluorocarbons (HBFCs) (Annex C Group II) Containing hydrochlorofluorocarbons (HCFCs), whether or not containing perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs), but not containing chlorofluorocarbons (CFCs) (Mixtures containing HCFC) Containing carbon tetrachloride Containing 1,1,1-trichloroethane (methyl chloroform) Containing bromomethane (methyl bromide) or bromochloromethane Containing perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs), but not containing chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs) Other (Mixtures containing halogenated derivatives of methane, ethane or propane) CON- TROL

Caribbean Community or CARICOM, Mixtures Subheading 3824.
Others, (chemical products and preparations of the chemical or allied industries -including those consisting of mixtures of natural products-, not elsewhere specified or included). 5% kg Should be monitored

Ozone Programme Office
Thank you!!! Lic. Juan Miguel Alter Ozone Programme Office Argentina

Identifying World Customs Organization (WCO) Harmonized Codes

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