You can find more information in our Terms and conditions, where you can also revoke your consent at any time. III, section 33.3, the following criteria shall apply: (a) Solids liable to spontaneous combustion (pyrophoric) shall be assigned to Class 4.2 when they. Xanthates fall under Class 4.2 of the IMDG code which is the classification for "Substances liable to spontaneous combustion" and is said to include Potassium Amylxanthate which is considered an environmental hazard. Class 8 covers substances that can cause a chemical reaction that can potentially destroy living tissue or other goods. Don't have a Premium subscription yet? Assignment to general N.O.S. Division 5.2 Organic peroxides. Test methods and criteria for self-reactive substances and polymerizing substances are given in Part II of the Manual of Tests and Criteria, and test methods and criteria for the other types of substances of class 4 are given in the Manual of Tests and Criteria, part III, chapter 33. The term "Spontaneous Combustion" refers to the occurrence of fire without the application of heat from an outside source. A pyrotechnic substance (or mixture) is designed to produce an effect by heat, light, sound, gas or smoke or a combination of these as the result of non-detonative, self-sustaining, exothermic chemical reactions. CLASS 4 - Flammable Solids, Substances liable to spontaneous combustion; Substances that on contact with water emit flammable gases (water-reactive substances) 4.1 A solid that under normal conditions of transport is readily combustible, or would cause or contribute to fire through friction or from heat retained from manufacturing or processing . within 24 hours, shall be assigned to packing group III. Solids which, under conditions encountered in transport, are readily combustible or may cause or contribute to fire through friction, Self-reactive substances and polymerizing substances which are liable to undergo a strongly exothermic reaction, Desensitized explosives which may explode if not diluted sufficiently, Which are liable to spontaneous heating under normal conditions encountered in transport, or to heating up in contact with air and being then liable to catch fire, Following types of substances are classified in division 4.2: Pyrophoric substances and Self-heating substances, By interaction with water, are liable to become spontaneously flammable or to give off flammable gases in dangerous quantities. Class 4 Division 4.2 Packing Group for Substances Liable to Spontaneous Combustion . These substances are the most liable to spontaneous combustion; and 2 Self-heating substances, which are substances, other than pyrophoric substances, which, in contact with air without energy supply, are liable to self-heating. Biofuel is made from vegetable oils and/or animal fats which can oxidize and degrade over time. Class 4: Flammable Solids; Substances Liable to Spontaneous Combustion; Substances That, on Contact with Water, Emit Flammable Gases (Water-Reactive Substances) Divisions. Examples: . Combustion is a chemical reaction between two or more substances, usually involving oxygen, that produces heat and light in the form of a flame. water, emit flammable gases, are substances of Class 4.3. This criterion is based on the temperature of the spontaneous combustion, of charcoal, which is at 50 C for a sample cube of 27 m3. Combustion: You may have noticed that some materials such as paper burn easily, while materials such as iron do not. ARTICLES CONTAINING A SUBSTANCE LIABLE TO SPONTANEOUS COMBUSTION, N.O.S. Divisions. Division 5.1 Oxidizing substances. Dangerous goods - All substances of an inflammable nature which are liable to spontaneous combustion either in themselves or when stowed next to other substances and, when mixed with air, are liable to generate explosive gases or produce suffocation or poisoning or tainting of foodstuffs. 6, 1.7 - GENERAL PROVISIONS CONCERNING RADIOACTIVE MATERIAL, 1.7.1.5 - Specific provisions for the carriage of excepted packages, 1.8 - CHECKS AND OTHER SUPPORT MEASURES TO ENSURE COMPLIANCE WITH SAFETY REQUIREMENTS, 1.8.1 - Administrative controls of dangerous goods, 1.8.3.16 - Validity and renewal of certificates, 1.8.5 - Notifications of occurrences involving dangerous goods, 1.8.6 - Administrative controls for application of the conformity assessments, periodic inspections, intermediate inspections and exceptional checks described in 1.8.7, 1.8.6.2 - Operational obligations for the competent authority, its delegate or inspection body, 1.8.7.5 - Periodic inspection, intermediate inspection and exceptional checks, 1.8.7.6 - Surveillance of the applicants in-house inspection service, 1.9 - TRANSPORT RESTRICTIONS BY THE COMPETENT AUTHORITIES, 1.9.5.3 - Provisions for road signs and notification of restrictions, 1.10.3 - Provisions for high consequence dangerous goods, 1.10.3.1 - Definition of high consequence dangerous goods, 2.1.3 - Classification of substances, including solutions and mixtures (such as preparations and wastes), not mentioned by name, 2.1.3.10 - 2.1.3.10 Table of precedence of hazards, 2.2.1 - Class 1 Explosive substances and articles, 2.2.1.1.7 - Assignment of fireworks to divisions, 2.2.1.2 - Substances and articles not accepted for carriage, 2.2.2.2 - Gases not accepted for carriage, 2.2.3.2 - Substances not accepted for carriage, 2.2.41 - Class 4.1 Flammable solids, self-reactive substances, polymerizing substances and solid desensitized explosives, 2.2.41.2 - Substances not accepted for carriage, 2.2.42 - Class 4.2 Substances liable to spontaneous combustion, 2.2.43 - Class 4.3 Substances which, in contact with water, emit flammable gases, 2.2.51.2 - Substances not accepted for carriage, 2.2.61.2 - Substances not accepted for carriage, 2.2.7.2.2 - Determination of basic radionuclide values, 2.2.7.2.3 - Determination of other material characteristics, 2.2.7.2.3.1 - Low specific activity (LSA) material, 2.2.7.2.3.3 - Special form radioactive material, 2.2.7.2.3.4 - Low dispersible radioactive material, 2.2.7.2.4.1 - Classification as excepted package, 2.2.7.2.4.5 - Classification of uranium hexafluoride, 2.2.7.2.4.6 - Classification as Type B(U), Type B(M) or Type C packages, 2.2.8.2 - Substances not accepted for carriage, 2.2.9 - Class 9 Miscellaneous dangerous substances and articles, 2.2.9.1.9 - Environmentally hazardous substances, 2.2.9.1.10.2 - Definitions and data requirements, 2.2.9.1.10.3 - Substance classification categories and criteria, 2.2.9.1.10.4 - Mixtures classification categories and criteria, 2.2.9.1.10.4.3 - Classification of mixtures when toxicity data are available for the complete mixture, 2.2.9.1.10.4.5 - Classification of mixtures when toxicity data are available for all ingredients or only for some ingredients of the mixture, 2.2.9.1.10.4.6.2 - Classification for category Acute 1, 2.2.9.1.10.4.6.3 - Classification for categories Chronic 1 and 2, 2.3.1 - Exudation test for blasting explosives of Type A, 2.3.2 - Tests relating to nitrated cellulose mixtures of Class 4.1, 2.3.3 - Tests relating to flammable liquids of Classes 3, 6.1 and 8, 3 - Dangerous goods list, special provisions and exemptions related to limited and excepted quantities, 3.3 - SPECIAL PROVISIONS APPLICABLE TO CERTAIN ARTICLES OR SUBSTANCES, 3.4 - DANGEROUS GOODS PACKED IN LIMITED QUANTITIES, 3.4.7 - Marking of packages containing limited quantities, 3.4.8 - Marking of packages containing limited quantities conforming to Part 3, Chapter 4 of the ICAO Technical Instructions, 3.5 - DANGEROUS GOODS PACKED IN EXCEPTED QUANTITIES, 4.1 - USE OF PACKAGINGS, INCLUDING INTERMEDIATE BULK CONTAINERS (IBCs) AND LARGE PACKAGINGS, 4.1.1.19 - Use of salvage packagings and large salvage packagings. Its enthalpy of formation is positive and makes it unstable. These substances are classified as either pyrophoric substances or self-heating substances. Other regulations and labels apply to radioactive waste and materials exceeding the limits for Type A packages. read more. Gases in class 2 are assigned one or more groups, representing their dangerous properties. 108 substances 40 1361 CARBON, animal or vegetable origin 4.2, II, (D/E) 40 1361 CARBON, animal or vegetable origin 4.2, III, (E) 40 1362 CARBON, ACTIVATED 4.2, III, (E) 40 1363 COPRA This can cause a fire to accelerate quickly, or to start due to the heat given off in the oxidation process. NOTE: For the classification of solutions and mixtures (such as preparations and wastes), see, On the basis of the test procedure in the Manual of Tests and Criteria, Part III, section 33.3 and the, criteria set out in 2.2.42.1.5, it may also be determined whether the nature of a substance mentioned. ZIRCONIUM, DRY, finished sheets, strip or coiled wire, MANEB or MANEB PREPARATION with not less than 60% maneb, SEED CAKE with not more than 1.5% oil and not more than 11% moisture, SODIUM HYDROSULPHIDE with less than 25% water of crystallization, TITANIUM TRICHLORIDE, PYROPHORIC or TITANIUM TRICHLORIDE MIXTURE, PYROPHORIC, FERROUS METAL BORINGS, SHAVINGS, TURNINGS or CUTTINGS in a form liable to self- heating, 9-PHOSPHABICYCLO-NONANES (CYCLOOCTADIENE PHOSPHINES). We noticed that you're enjoying our website - great! Note: The information below is provided as guidance only. SELF-HEATING LIQUID, CORROSIVE, ORGANIC, N.O.S. SELF-HEATING LIQUID, TOXIC, INORGANIC, N.O.S. Standard sets out requirements and recommendations for the safe storage and handling of flammable solids, substances liable to spontaneous combustion, and substances that in contact with water emit flammable gases, i.e. Download this Class 4 Flammable Solids Substances Liable To Spontaneous Combustion 3170 vector illustration now. Also included are substances which are liable to spontaneous heating under normal transport conditions, or to heating up in contact with air, and are consequently liable to catch fire and substances which emit flammable gases or become spontaneously flammable when in contact with water. with a flash point at or above 37.8 C (100 F) that is offered for transportation is classified as a flammable liquid. read more. Many translated example sentences containing "substances liable to spontaneous combustion" - German-English dictionary and search engine for German translations. In some regulations, gases in class 2 are divided into divisions 2.1 - 2.3 depending on their primary hazard. Substances, which are liable to spontaneous heating under normal conditions encountered in transport, or to heating up in contact with air and being then liable to catch fire. Two types of substances are included in Class 4.2. Burning of the candle to produce a flame. The rate of spontaneous combustion might be fast or slow. A substance meeting the criteria of Class 8 Corrosive Material having an inhalation toxicity of dusts and mists (LC50) in the range of Packing Group I, but toxicity through oral ingestion or dermal contact only (not inhalation) in the range of Packing Group III or less must be classified as Class 8 Corrosive Material. B.3.2 Classification criteria Following are the examples of Combustion: Combustion of petrol or diesel in a car engine to run a car. Spontaneous combustion may occur when combustible matter, such as hay or coal, is stored in bulk. Packing group II: if a self-heating material gives a positive test result when tested with a 25 mm cube size sample at 140 C; . They all have in common that they are flammable under certain conditions. Many substances undergo a slow oxidation that, like the rapid oxidation of burning, releases heat. IATA Class 4 Division 4.2 Substances Liable to Spontaneous Combustion. . 3127 unless they meet the requirements for, a Dust and powder of metals, non toxic in a non-spontaneous combustible form which nevertheless, in contact with. To learn more about combustion, read . In accordance with the EU General Data Protection Regulation (GDPR), you must explicitly agree to the use of cookies. dangerous goods that-(a) in Australia, are classified as Division 4.1, 4.2 or 4.3 in the Australian Dangerous Goods Code (ADG Code); and(b) in New Zealand, meet the 4.1, 4.2 or 4.3 classification criteria of the Hazardous Substances and New Organisms Act, 1996, referred to as . Abstract. A Premium subscription lets you remove all ads and avoid the dialog that prompts you to install our mobile app. SELF-HEATING SOLID, TOXIC, INORGANIC, N.O.S. SELF-HEATING LIQUID, CORROSIVE, INORGANIC, N.O.S. SELF-HEATING LIQUID, TOXIC, ORGANIC, N.O.S. If the dangerous good is an explosive or radioactive material, it must be classified as required by other regulatory authorities. Division 4.3 Substances which in contact with water emit flammable gases. Substances which catch fire and burn are called combustible substances. Substances (solids and liquids) which are liable to spontaneous heating under normal conditions encountered in transport, or to heating up in contact with air, and being then liable to catch fire; Class 4.3 Substances which, in contact with water, emit flammable gases Get in touch and we'll find the solution you need. Class 5 - Oxidizing substances and Organic peroxides. This website uses cookies in order to provide the best user experience. This website uses cookies in order to provide the best user experience. Substances and articles which, during carraige, present a danger not covered by any of the other classes fall under class 9. Division 4.1: Flammable solids. In some mining districts the coal is liable to spontaneous combustion. Substances Liable To Spontaneous Combustion. They are described as substances liable to spontaneous combustion (pyrophoric substances); EurLex-2 Liquid organic spontaneously combustible toxic substances , and solutions of organic spontaneously combustible toxic substances (such as preparations and wastes) which cannot be classified under other collective headings: Items in Class 1 are further divided into divisions 1.1 - 1.6 depending on the nature of the explosion hazard and the sensitivity of the item. Subscribe now using PayPal, or Pages 55 This is because the paper is a combustible substance whereas iron is a non-combustible substance. Division 4.3 - Substances which in contact with water, emit flammable gases. 42 substances liable to spontaneous combustion which. By shashi kallada. 3 filter), they ignite or carbonize it within five, (c) Substances in which, in a 10 cm sample cube, at 140 C test temperature, spontaneous, combustion or a rise in temperature to over 200 C is observed within 24 hours shall be, assigned to Class 4.2. .6 Self-heating substances (class 4.2); and. Packing group I: Pyrophoric liquids and solids. It works completely offline and provides much more advanced functions than the website. SELF-HEATING SOLID, TOXIC, ORGANIC, N.O.S. Q.3. If the goods have multiple dangerous propreties, the most dominant one determines the class to which it shall belong. It can occur because of a chemical reaction or because of a sensitive substance reacting with air or water. [Pg.177] An air/ nitric acid/phosphorus mixture in the gaseous state combusts spontaneously. Aerosol means any non-refillable receptacle containing a gas compressed, liquefied or dissolved under pressure, and fitted with a release device allowing the contents to be ejected as particles in suspension in a gas, or as a foam, paste, powder, liquid or gas. Don't have a Premium subscription yet? We noticed that you're enjoying our website - great! 2015-2018. Class 1 - Explosive substances and articles; Class 2 - Gases; Class 3 - Flammable liquids; Class 4.1 - Flammable solids, self-reactive substances, polymerizing substances and solid desensitized explosives; Class 4.2 - Substances liable to spontaneous combustion; Class 4.3 - Substances which, in contact with water, emit flammable gases And search more of iStock's library of royalty-free vector art that features Danger graphics available for quick and easy download. For some (Type A) materials and packages, a transport index is calculated on the basis of the maximum dose rate on the external surface of the packaging, and different labels and regulations apply depening on this index. Class 5.2, organic peroxides, may also decompose at a high rate and give off oxygen or flammable gases, as well as heat. Province Byen Kobenhavn - Substances Liable To Spontaneous Combustion - Laden Journeys, 1000 - Province Fyn; Province Byen Kobenhavn - Substances Liable To Spontaneous Combustion - Laden Travelled Km, 1000 Km - Province Ostjylland Define combustible substances. The following substances shall not be accepted for carriage: - UN No. Flammable solids, self-reactive substances, polymerizing substances and solid desensitized explosives: 4.2: Substances liable to spontaneous combustion: 4.3: Substances which, in contact with water, emit flammable gases spontaneous combustion spontaneous combustion, phenomenon in which a substance unexpectedly bursts into flame without apparent cause. [Pg.177] This gas combusts spontaneously in contact with air. the substance will rise which, after an induction time, may lead to self-ignition and combustion. The shipper is responsible for properly classifying material prior to offering it into . 2.21 (1) Class 4 has three divisions: Q.2. Our experts are ready to help. Class 4.3: Substances which, in contact with water, . Presence of a supporter of combustion. spontaneous combustion, the outbreak of fire without application of heat from an external source. Class 4.2, [Substances liable to spontaneous combustion] : carriage of carbon (UN 1361) and activated carbon (UN 1362) / transmitted by the Government of the United Kingdom. CLASS 4 - Flammable solids; substances liable to spontaneous combustion; substances which, in contact with water, emit flammable gases Class 4.1 Solids having the properties of being easily ignited by external sources, such as spark and flames, and of being readily combustible, or of being liable to cause or contribute to a fire or cause one . also be taken into account when it leads to a more stringent assignment. Jrgen F. Brune, in Advances in Productive, Safe, and Responsible Coal Mining, 2019 6.7.3 Prevention of spontaneous combustion. entry of 2.2.42.3 in accordance with the provisions of Chapter 2.1 can be based on experience. A remarkable case of spontaneous ignition occurred a few years ago in England. Province Kobenhavns Omegn - Substances Liable To Spontaneous Combustion - Laden Travelled Km, 1000 Km - Province Vest- And Sydsjalland; Province Kobenhavns Omegn - Substances Liable To Spontaneous Combustion - Weight Of Goods Loaded, 1000 Tonnes - Province Ostsjalland Order your Class 4.2 Substances Liable to Spontaniously Combust ADR compliant labels today Free delivery on all orders over 200 (excl VAT) to the English mainland, Wales and some parts of Scotland. Spontaneous combustion is the tendency of coal to react with available oxygen and burn. Perhaps you might be interested in using our app instead? The substances and articles of Class 4.2 are subdivided as follows: S Substances liable to spontaneous combustion, without subsidiary risk: SW Substances liable to spontaneous combustion, which, in contact with water, emit flammable. Class 4 Substances/Products include: Flammable Solids; Substances Liable to Spontaneous Combustion; Substances That on Contact with Water Emit Flammable . temperature to over 160 C is observed within 24 hours. This can occur. This includes substances which only form a corrosive substance in the presence of water, or produce corrosive vapour in the presence of moisture in the air. Spontaneous combustion is a combination of complex chemical reactions that are the subject of research worldwide and that are not yet fully understood. If the product that you are storing is classified as either class 4.2 or 4.3 flammable solids and listed in the . These substances will ignite only when in large amounts (kilograms) and after long periods of time (hours or days). Scan the QR code using the Swish app in your phone or tablet. .7 Substances which, in contact with water, emit flammable gases (class 4.3). In accordance with the EU General Data Protection Regulation (GDPR), you must explicitly agree to the use of cookies. 3255 tert-BUTYL HYPOCHLORITE; and, - Self-heating solids, oxidizing, assigned to UN No. These are referred to as pyrophoric substances, and they are the most liable to spontaneous combustion. Burning of LPG to cook and other domestic purposes. Fibres, animal or fibres, vegetable burnt, wet or damp, FIBRES or FABRICS, ANIMAL or VEGETABLE or SYNTHETIC, N.O.S. Burning of firecrackers. Perhaps you might be interested in using our app instead? NOTE 3: Since organometallic substances can be classified in Class 4.2 or 4.3 with additional, subsidiary risks, depending on their properties, a specific classification flow chart for these, If substances of Class 4.2, as a result of admixtures, come into different categories of risk from those, to which the substances mentioned by name in Table A of Chapter 3.2 belong, these mixtures shall be. The classes are part of the United Nations-based system of identifying dangerous goods, and are used within many different subsystems such as the ADR, RID, IMDG and DGR for classifying dangerous goods and hazardous materials. Class 4, Flammable Solids; Substances Liable to Spontaneous Combustion; & Substances which, on Contact with Water, Emit . of 450 litres are not to be assigned to packing group II; (c) Slightly self-heating substances in which, in a 2.5 cm sample cube, the phenomena referred to, under (b) are not observed, in the given conditions, but in which in a 10 cm sample cube at 140, C test temperature spontaneous combustion or a rise in temperature to over 200 C is observed. assigned to the entries to which they belong on the basis of their actual degree of danger. Eg-paper, wood, coal. SELF-HEATING SOLID, CORROSIVE, ORGANIC, N.O.S. For instance, strike-anywhere-matches (UN 1331) would be classified as a Class 4.1 substance. In ordinary combustion, a substance is deliberately heated to its ignition point to make it burn. microorganisms (including bacteria, viruses, parasites and fungi) and other agents which can cause disease in humans or animals. Class 6 Division 6.1 Toxic Substances Packing Group. 2.20 Substances are included in Class 4 if they are flammable solids, substances liable to spontaneous combustion or substances that on contact with water emit flammable gases (water-reactive substances) and meet the criteria for inclusion in one of the divisions and packing groups of Class 4. Presence of a combustible substance. The second type is self-heating substances. When the oxidation of a sensitive material (e.g., phosphorus) by oxygen in the atmosphere reaches the material's autoignition temperature. Flammable solids, substances liable to spontaneous combustion, substances which, in contact with water, emit flammable gases, Class 4 - Flammable solids, substances liable to spontaneous combustion, substances which, in contact with water, emit flammable gases. Substances liable to spontaneous combustion (e.g. Division 4.2 Substances liable to spontaneous combustion. When substances or articles not mentioned by name are assigned to one of the entries listed in, 2.2.42.3 on the basis of the test procedures in accordance with the Manual of Tests and Criteria, Part. 1.1.3.2 - Exemptions related to the carriage of gases, 1.1.3.6 - Exemptions related to quantities carried per transport unit, 1.1.4 - Applicability of other regulations, 1.1.4.2 - Carriage in a transport chain including maritime or air carriage, 1.2 - DEFINITIONS AND UNITS OF MEASUREMENT, 1.3 - TRAINING OF PERSONS INVOLVED IN THE CARRIAGE OF DANGEROUS GOODS, 1.4 - SAFETY OBLIGATIONS OF THE PARTICIPANTS, 1.6.2 - Pressure receptacles and receptacles for Class 2, 1.6.3 - Fixed tanks (tank-vehicles), demountable tanks and battery-vehicles, 1.6.4 - Tank-containers, portable tanks and MEGCs, 1.6.6.2 - Packages approved under the 1973, 1973 (as amended), 1985 and 1985 (as amended 1990) editions of IAEA Safety Series No. . . A large compost pile can spontaneously combust if not properly managed. Spontaneous combustion, to put it familiarly, arises from decomposition or disintegration of certain substancesa change in their substanceand may take the form of a fire, a$ in the case . For a comprehensive description of each class, see our article about the different ADR-classes. Gaining of ignition temperature of the combustible substance. within 24 hours, shall be assigned to packing group II; Substances with a temperature of spontaneous combustion higher than 50 C for a volume. Class 1 contains substances and articles which pose a hazard due to explosion. School The University of Sydney; Course Title AC PUAFIR303; Uploaded By BailiffBook96636. 1.9k Posted by u/503Oregonboy 4 years ago by name is such that the substance is not subject to the provisions for this Class. NOTE 2: Substances carried in packages with a volume of not more than 450 litres are exempted, from Class 4.2 if, tested with a 10 cm sample cube at 100 C, no spontaneous combustion nor a rise in. Substances liable to spontaneous combustion are those materials that, though not exposed to any particular source of heat or ignition source, still combust. United Kingdom 1997 Class 5: Oxidizing substances and Organic Peroxides . ALKALI METAL ALCOHOLATES, SELF-HEATING, CORROSIVE, N.O.S. A strong smell of fire was suddenly perceived to issue from a horse-hair. or the results of the test procedures in accordance with the Manual of Tests and Criteria, Part III, Section 33.3. Class 4.1 Flammable solids Spontaneous combustion or spontaneous ignition is a type of combustion which occurs by self-heating (increase in temperature due to exothermic internal reactions ), followed by thermal runaway (self heating which rapidly accelerates to high . Ans: Combustion can be classified into several categories based on the amount of energy required and the reaction's byproducts. Province Bornholm - Substances Liable To Spontaneous Combustion - Weight Of Goods Loaded, 1000 Tonnes - Province Vestjylland; Province Bornholm - Substances Liable To Spontaneous Combustion - Transport Performance, 1000 Tonne-Km - All Denmark SODIUM SULPHIDE, ANHYDROUS or SODIUM SULPHIDE with less than 30% water of crystallization, SEED CAKE with more than 1.5% oil and not more than 11% moisture, CALCIUM, PYROPHORIC or CALCIUM ALLOYS, PYROPHORIC, CALCIUM DITHIONITE (CALCIUM HYDROSULPHITE), POTASSIUM DITHIONITE (POTASSIUM HYDROSULPHITE). 3. Division 4.2Substances liable to spontaneous combustion. Class 7 contains substances and articles that are radioactive, meaning that they contain radionuclides where both the activity concentration and the total activity exceed certain threshold values defined in the regulations. Fresh pistachios, if stacked under pressure, can burst into flames and cause a cargo fire. It begins with a slow oxidation process (as atmospheric oxidation or bacterial fermentation) under conditions not permitting . Division 4.2 - substances liable to spontaneous combustion. SO Substances liable to spontaneous combustion, oxidizing; ST Substances liable to spontaneous combustion, toxic: SC Substances liable to spontaneous combustion, corrosive: Self-heating of a substance is a process where the gradual reaction of that substance with oxygen (in, air) generates heat. Substances Liable To Spontaneous Combustion. 2. Division 4.2 substances include those that are liable to spontaneous heating under normal conditions of transport, or those substances that heat up with contact with air and have a potential to catch on fire. Division 4.2 - Substances liable to spontaneous combustion. Pyrophoric substances: These include solutions and mixtures (liquid or solid) that, even in small quantities, ignite within 5 minutes of coming in contact with air. PYROPHORIC METAL, N.O.S. 4.1.1.19.3 - Appropriate measures shall be taken to ensure that there is no dangerous build up of pressure. Scan the QR code using the Swish app in your phone or tablet. Class 6.1, toxic substances, is used to classify substances that - in relatively small amounts and in a short duration - can cause serious injury or death to humans if swallowed, inhaled or with by absorption through skin contact. A compatibility group, consisting of a single letter, is also assigned to each item.
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