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Heading 3811 - Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils

Heading
3811
Classification
Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils
Date of trade
2 June 2026
Change

There are 56 commodities in this category. Choose the commodity code that best matches your goods to see more information. If your item is not listed by name, it may be shown under what it's used for, what it's made from or 'Other'.

There are important notes for classifying your goods shown further down this page

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The number following each commodity's description is its commodity code. Description
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Footnotes
Code Description
TN701 According to the Council Regulation (EU) No 692/2014 (OJ L183, p. 9), as retained in UK Law, it shall be prohibited to import into European Union goods originating in Crimea or Sevastopol.
The prohibition shall not apply in respect of:
(a) the execution until 26 September 2014, of trade contracts concluded before 25 June 2014, or of ancillary contracts necessary for the execution of such contracts, provided that the natural or legal persons, entity or body seeking to perform the contract have notified, at least 10 working days in advance, the activity or transaction to the competent authority of the Member State in which they are established.
(b) goods originating in Crimea or Sevastopol which have been made available to the Ukrainian authorities for examination, for which compliance with the conditions conferring entitlement to preferential origin has been verified and for which a certificate of origin has been issued in accordance with Regulation (EU) No 978/2012 and Regulation (EU) No 374/2014, as retained in UK Law, or in accordance with the EU-Ukraine Association Agreement

Chapter notes

  1. This chapter does not cover:

    • a. separate chemically defined elements or compounds with the exception of the following:

      (1) artificial graphite (heading 3801);

      (2) insecticides, rodenticides, fungicides, herbicides, anti-sprouting products and plant-growth regulators, disinfectants and similar products, put up as described in heading 3808;

      (3) products put up as charges for fire-extinguishers or put up in fire-extinguishing grenades (heading 3813);

      (4) certified reference materials specified in note 2 below;

      (5) products specified in note 3(a) or 3(c) below;

    • b. mixtures of chemicals with foodstuffs or other substances with nutritive value, of a kind used in the preparation of human foodstuffs (generally, heading 2106).

    • c. products of heading 2404

    • d. slag, ash and residues (including sludges, other than sewage sludge), containing metals, arsenic or their mixtures and meeting the requirements of note 3 (a) or 3(b) to Chapter 26 (heading 2620);

    • e. medicaments (heading 3003 or 3004); or

    • f. spent catalysts of a kind used for the extraction of base metals or for the manufacture of chemical compounds of base metals (heading 2620), spent catalysts of a kind used principally for the recovery of precious metal (heading 7112) or catalysts consisting of metals or metal alloys in the form of, for example, finely divided powder or woven gauze (Section XIV or XV).

  2. (A) For the purpose of heading 3822, the expression ‘certified reference materials’ means reference materials which are accompanied by a certificate which indicates the values of the certified properties, the methods used to determine these values and the degree of certainty associated with each value and which are suitable for analytical, calibrating or referencing purposes.

    (B) With the exception of the products of Chapter 28 or 29, for the nomenclature of certified reference materials, heading 3822 shall take precedence over any other heading in the nomenclature.

  3. Heading 3824 includes the following goods which are not to be classified in any other heading of the nomenclature:

    a. cultured crystals (other than optical elements) weighing not less than 2.5g each, of magnesium oxide or of the halides of the alkali or alkaline-earth metals;

    b. fusel oil; Dippel’s oil;

    c. ink removers put up in packings for retail sale;

    d. stencil correctors, other correcting fluids and correction tapes (other than those of heading 9612), put up in packings for retail sale; and

    e. ceramic firing testers, fusible (e.g. Seger cones).

  4. Throughout the nomenclature, ‘municipal waste’ means waste of a kind collected from households, hotels, restaurants, hospitals, shops, offices, etc., road and pavement sweepings, as well as construction and demolition waste. Municipal waste generally contains a large variety of materials such as plastics, rubber, wood, paper, textiles, glass, metals, food materials, broken furniture and other damaged or discarded articles.

    The term ‘municipal waste’, however, does not cover:

    a. individual materials or articles segregated from the waste, for example wastes of plastics, rubber, wood, paper, textiles, glass or metals, electrical and electronic waste and scrap (including spent batteries) which fall in their appropriate headings of the nomenclature;

    b. industrial waste;

    c. waste pharmaceuticals, as defined in note 4(k) to Chapter 30; or

    d. clinical waste, as defined in note 6 (a) below.

  5. For the purposes of heading 3825, ‘sewage sludge’ means sludge arising from urban effluent treatment plant and includes pre-treatment waste, scourings and unstabilised sludge. Stabilised sludge when suitable for use as fertiliser is excluded (Chapter 31).

  6. For the purposes of heading 3825, the expression ‘other wastes’ applies to:

    a. clinical waste, that is, contaminated waste arising from medical research, diagnosis, treatment or other medical, surgical, dental or veterinary procedures, which often contain pathogens and pharmaceutical substances and require special disposal procedures (eg, soiled dressings, used gloves and used syringes);

    b. waste organic solvents;

    c. wastes of metal pickling liquors, hydraulic fluids, brake fluids and anti-freezing fluids; and

    d. other wastes from chemical or allied industries.

    The expression ‘other wastes’ does not, however, cover wastes which contain mainly petroleum oils or oils obtained from bituminous minerals (heading 2710).

  7. For the purposes of heading 3826, the term “biodiesel” means mono-alkyl esters of fatty acids of a kind used as a fuel, derived from animal, vegetable or microbial fats and oils whether or not used.

Subheading notes

  1. Subheadings 3808 52 and 3808 59 cover only goods of heading 3808, containing one or more of the following substances: alachlor (ISO); aldicarb (ISO); aldrin (ISO); azinphos-methyl (ISO); binapacryl (ISO); camphechlor (ISO) (toxaphene); captafol (ISO); carbofuran (ISO); chlordane (ISO); chlordimeform (ISO); chlorobenzilate (ISO); DDT (ISO) (clofenotane (INN), 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane); dieldrin (ISO, INN); 4,6-dinitro-o-cresol (DNOC (ISO)) or its salts; dinoseb (ISO), its salts or its esters; endosulfan (ISO); ethylene dibromide (ISO) (1,2-dibromoethane); ethylene dichloride (ISO) (1,2-dichloroethane); fluoroacetamide (ISO); heptachlor (ISO); hexachlorobenzene (ISO); 1,2,3,4,5,6-hexachlorocyclohexane (HCH (ISO)), including lindane (ISO, INN); mercury compounds; methamidophos (ISO); monocrotophos (ISO); oxirane (ethylene oxide); parathion (ISO); parathion-methyl (ISO) (methyl-parathion); pentachlorophenol (ISO), its salts or its esters; perfluorooctane sulphonic acid and its salts; perfluorooctane sulphonamides; perfluorooctane sulphonyl fluoride; phosphamidon (ISO); 2,4,5-T (ISO) (2,4,5-trichlorophenoxyacetic acid), its salts or its esters; tributyltin compounds; trichlorfon (ISO).

  2. Subheadings 3808 61 to 3808 69 cover only goods of heading 3808, containing alpha-cypermethrin (ISO), bendiocarb (ISO), bifenthrin (ISO), chlorfenapyr (ISO), cyfluthrin (ISO), deltamethrin (INN, ISO), etofenprox (INN), fenitrothion (ISO), lambda-cyhalothrin (ISO), malathion (ISO), pirimiphos-methyl (ISO) or propoxur (ISO).

  3. Subheadings 3824 81 to 3824 89 cover only mixtures and preparations containing one or more of the following substances: oxirane (ethylene oxide), polybrominated biphenyls (PBBs), polychlorinated biphenyls (PCBs), polychlorinated terphenyls (PCTs), tris(2,3-dibromopropyl) phosphate, aldrin (ISO), camphechlor (ISO) (toxaphene), chlordane (ISO), chlordecone (ISO), DDT (ISO) (clofenotane (INN), 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane), dieldrin (ISO, INN), endosulfan (ISO), endrin (ISO), heptachlor (ISO), mirex (ISO), 1,2,3,4,5,6-hexachlorocyclohexane (HCH (ISO)), including lindane (ISO, INN), pentachlorobenzene (ISO), hexachlorobenzene (ISO), perfluorooctane sulphonic acid, its salts, perfluorooctane sulphonamides, perfluorooctane sulphonyl fluoride or tetra-, penta-, hexa-, hepta- or octabromodiphenyl ethers; short-chain chlorinated paraffins.

    Short-chain chlorinated paraffins are mixtures of compounds, with a chlorination degree of more than 48 % by weight, with the following molecular formula : CxH(2x-y+2)Cly, where x=10 - 13 and y= 1 – 13

  4. For the purposes of subheadings 3825 41 and 3825 49, ‘waste organic solvents’ are wastes containing mainly organic solvents, not fit for further use as presented as primary products, whether or not intended for recovery of the solvents.

Additional chapter note

  1. For the purposes of this chapter, “agricultural products” means:

    • goods of chapters 1 to 4, 6 to 12, 16 and 23 of the classification;

    • goods of heading 0504, 1501, 1502, 1503, 1504, 1507, 1512, 1513, 1517, 1701, 1702, 1703, 1801, 1802, 2204, 2205, 2207, 2401, 2501 and 5701 of the classification;

    • pectin;

    • ethyl alcohol or neutral spirits, whether or not denatured, of any strength, obtained from agricultural products listed in the three bullet points above, excluding liqueurs and other spirituous beverages and compound alcoholic preparations (known as “concentrated extracts”) for the manufacture of beverages.

Section notes

  1. (A) Goods (other than radioactive ores) answering to a description in heading 2844 or 2845 are to be classified in those headings and in no other heading of the classification.

    (B) Subject to paragraph (A) above, goods answering to a description in heading 2843, 2846 or 2852 are to be classified in those headings and in no other heading of this section.

  2. Subject to Note 1 above, 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 nomenclature.

  3. 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. presented together; and

    c. identifiable, whether by their nature or by the relative proportions in which they are present, as being complementary one to another.

  4. Where a product answers to a description in one or more of the headings in Section VI by virtue of being described by name or function and also to heading 3827, then it is classifiable in a heading that references the product by name or function and not under heading 3827.

General Rules for the Interpretation of goods

Classification of goods in the Tariff shall be governed by the following principles:

Rule 1

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 chapter notes and, provided such headings or notes do not otherwise require, according to the following provisions.

Rule 2

  1. Any reference in a heading to an article shall be taken to include a reference to that article incomplete or unfinished, provided that, as presented, the incomplete or unfinished article has the essential character of the complete or finished article. It shall also be taken to include a reference to that article complete or finished (or falling to be classified as complete or finished by virtue of this rule), presented unassembled or disassembled.
  2. Any reference in a heading to a material or substance shall be taken to include a reference to mixtures or combinations of that material or substance with other materials or substances. Any reference to goods of a given material or substance shall be taken to include a reference to goods consisting wholly or partly of such material or substance. The classification of goods consisting of more than one material or substance shall be according to the principles of rule 3.

Rule 3

When, by application of rule 2(b) or for any other reason, goods are prima facie classifiable under two or more headings, classification shall be effected as follows:

  1. the heading which provides the most specific description shall be preferred to headings providing a more general description. However, when two or more headings each refer to part only of the materials or substances contained in mixed or composite goods or to part only of the items in a set put up for retail sale, those headings are to be regarded as equally specific in relation to those goods, even if one of them gives a more complete or precise description of the goods;
  2. mixtures, composite goods consisting of different materials or made up of different components, and goods put up in sets for retail sale, which cannot be classified by reference to 3(a), shall be classified as if they consisted of the material or component which gives them their essential character, insofar as this criterion is applicable;
  3. when goods cannot be classified by reference to 3(a) or (b), they shall be classified under the heading which occurs last in numerical order among those which equally merit consideration.
Rule 4

Goods which cannot be classified in accordance with the above rules shall be classified under the heading appropriate to the goods to which they are most akin.

Rule 5

In addition to the foregoing provisions, the following rules shall apply in respect of the goods referred to therein:

  1. camera cases, musical instrument cases, gun cases, drawing-instrument cases, necklace cases and similar containers, specially shaped or fitted to contain a specific article or set of articles, suitable for long-term use and presented with the articles for which they are intended, shall be classified with such articles when of a kind normally sold therewith. This rule does not, however, apply to containers which give the whole its essential character;
  2. subject to the provisions of rule 5(a), packing materials and packing containers ( 1 ) presented with the goods therein shall be classified with the goods if they are of a kind normally used for packing such goods. However, this provision is not binding when such packing materials or packing containers are clearly suitable for repetitive use.

Rule 6

For legal purposes, the classification of goods in the subheadings of a heading shall be determined according to the terms of those subheadings and any related subheading notes and, mutatis mutandis, to the above rules, on the understanding that only subheadings at the same level are comparable. For the purposes of this rule, the relative section and chapter notes also apply, unless the context requires otherwise.