un manual of tests and criteria part iii


An explosive substance or mixture is a solid or liquid substance or mixture of substances which is in itself capable by chemical reaction of producing gas at such a temperature and pressure and at such a speed as to cause damage to the surroundings. Liquids with a flash point of more than 35. Substances, mixtures and articles of this class, which are not classified as an unstable explosive, shall be assigned to one of the following six divisions depending on the type of hazard they present: Explosives, which are not classified as an unstable explosive, shall be classified in one of the six divisions referred to in paragraph2.1.2.2 of this Annex based on Test Series2 to 8 in PartI of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria according to the results of the tests laid down in Table2.1.1: If explosives are unpackaged or repacked in packaging other than the original or similar packaging, they shall be retested. There are no chemical groups present in the molecule associated with explosive or self reactive properties. A substance or mixture shall not be classified as explosive if: In the case of mixtures containing any known explosives, the acceptance procedure has to be performed. the substance or mixture is known to be soluble in water to form a stable mixture. A substance or a mixture that is corrosive to metals means a substance or a mixture which by chemical action will materially damage, or even destroy, metals. You have to look very closely what the manufacturer or supplier confirms. For the purpose of this Regulation gas oils, diesel and light heating oils having a flash point between 55oC and 75oC may be regarded as Category3. Any gas which may, generally by providing oxygen, cause or contribute to the combustion of other material more than air does. In air transport this is regulated in the IATA DGR manual in Special Provision A88. Certain physical hazards (due to explosive properties) are altered by dilution, as is the case for desensitised explosives, by inclusion in a mixture or article, packaging or other factors.

The second step is the acceptance procedure (Test Series 2 to 4) and the third step is the assignment to a hazard division (Test Series 5 to 7). Label elements shall be used for substances or mixtures meeting the criteria for classification in this hazard class in accordance with Table2.5.2. Label elements for self-heating substances and mixtures. Eng. If the screening procedure identifies the substance or mixture to be a potential explosive, the acceptance procedure (see section10.3 of the UNRecommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria) has to be performed. You may download these combined UN38.3 Test Summary and Supplier Inquiry Forms under these links: This combined UN 38.3 Test Summary and Supplier Inquiry Forms we provide to you free of charge. These components may be flammable liquids like hydrocarbons, ethers, alcohols, esters (except acrylates), and water. Label elements shall be used for substances or mixtures meeting the criteria for classification in this hazard class in accordance with Table2.12.2. For explosives of Divisions1.1 to 1.6, the following are the core set of tests that need to be performed: Explosibility: according to UN Test Series2 (section12 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria). Note: The sum of the individual parts can be more hazardous than the individual components. For this an exemption from the appropriate national authority is needed every time. H250: Catches fire spontaneously if exposed to air. Pyrotechnic substances are included even when they do not evolve gases. Any substance or mixture which, in the 1:1mixture, by mass, of substance (or mixture) and cellulose tested, spontaneously ignites; or the mean pressure rise time of a 1:1mixture, by mass, of substance (or mixture) and cellulose is less than that of a 1:1mixture, by mass, of 50% perchloric acid and cellulose. Examples of such groups are given in Tables A6.1 and A6.2 in Appendix 6 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria; or. For a mixture containing non-volatile components the flash point is calculated from the volatile components. To classify an oxidising gas, tests or calculation methods as described in ISO10156 as amended, gases and gas mixtures Determination of fire potential and oxidising ability for the selection of cylinder valve outlet and ISO10156-2 as amended, gas cylinders gases and gas mixtures Determination of oxidising ability of toxic and corrosive gases and gas mixtures shall be performed. The test shall be performed on the substance or mixture in its physical form as presented. Gases shall be classified, according to their physical state when packaged, in one of four groups in accordance with Table2.5.1: A gas which, when packaged under pressure, is partially liquid at temperatures above -50oC. Aerosols shall be considered for classification as flammable in accordance with2.3.2.2 if they contain any component which is classified as flammable according to the criteria contained in this Part, i.e. A self-reactive substance or mixture is regarded as possessing explosive properties when in laboratory testing the formulation is liable to detonate, to deflagrate rapidly or to show a violent effect when heated under confinement. For this group of gases, the following information is required to be known: the physical state at 20oC at standard ambient pressure; Data can be found in the literature, calculated or determined by testing. Aerosols, this means aerosol dispensers, are any non-refillable receptacles made of metal, glass or plastics and containing a gas compressed, liquefied or dissolved under pressure, with or without a liquid, paste or powder, and fitted with a release device allowing the contents to be ejected as solid or liquid particles in suspension in a gas, as a foam, paste or powder or in a liquid state or in a gaseous state. The assessment whether a candidate for ammonium nitrate emulsion or suspension or gel, intermediate for blasting explosives (ANE) is insensitive enough for inclusion as an oxidising liquid (section2.13) or an oxidising solid (section2.14) is answered by Test Series 8 tests. With this shall be ensured that the production series is not of low quality which could present a risk during transport. Such a mixture showing the properties of a self-reactive substance type B to F (see2.8.2.3) shall be classified as a self-reactive substance. akkupacks Explosive substances and mixtures wetted with water or alcohols, or diluted with other substances to suppress their explosive properties, may be treated differently in terms of classification and other hazard classes may apply, according to their physical properties (see also AnnexII section1.1.). Liquids with a flash point 93oC, which includes Flammable Liquids according to section2.6; Flammable components do not cover pyrophoric, self-heating or water-reactive substances and mixtures because such components are never used as aerosol contents. Label elements shall be used for substances or mixtures meeting the criteria for classification in this hazard class in accordance with Table2.14.2. not more than 1,0% available oxygen from the organic peroxides when containing not more than 1,0% hydrogen peroxide; or. We have obtained quite a lot of UN 38.3 certificates or UN 38.3 declarations of conformity ourselves and we can help you directly or to support you in your search. With the changes on 01. A flammable gas shall be classified in this class in accordance with Table2.2.1: Flammability shall be determined by tests or, for mixtures where there are sufficient data available, by calculation in accordance with the methods adopted by ISO (see ISO10156 as amended, Gases and gas mixtures Determination of fire potential and oxidising ability for the selection of cylinder valve outlet). Any substance or mixture which, in the 1:1mixture, by mass, of substance (or mixture) and cellulose tested, exhibits a mean pressure rise time less than or equal to the mean pressure rise time of a 1:1mixture, by mass, of 65% aqueous nitric acid and cellulose; and the criteria for Category1 and 2 are not met. Thermal stability: according to UN Test3(c) (sub-section13.6.1 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria). Examples of groups which may indicate explosive properties are given in Table A6.1 in Appendix 6 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria; or. The exothermic decomposition energy can be determined using a suitable calorimetric technique; or. An external fire shall not cause virtually instantaneous explosion of almost the entire contents of the package; Division1.5 Very insensitive substances or mixtures which have a mass explosion hazard: substances and mixtures which have a mass explosion hazard but are so insensitive that there is very little probability of initiation or of transition from burning to detonation under normal conditions; Division1.6 Extremely insensitive articles which do not have a mass explosion hazard: articles which contain only extremely insensitive detonating substances or mixtures and which demonstrate a negligible probability of accidental initiation or propagation. As determined by test series E as prescribed in UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, PartII. A pyrophoric solid shall be classified in a single category for this class using test N.2 in PartIII, sub-section33.3.1.4 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria in accordance with Table2.10.1: The classification procedure for pyrophoric solids need not be applied when experience in manufacture or handling shows that the substance or mixture does not ignite spontaneously on coming into contact with air at normal temperatures (i.e. diatomite (kieselguhr), in place of the cellulose in order to clarify the nature of the reaction and to check for a false positive result. Examples of screening tests are: Substances and mixtures which in contact with water emit flammable gases. Without a confirmation of this UN 38.3 test lithium cells and lithium batteries may only be transported following stricter requirements as so called prototypes. Where an initial test on either steel or aluminium indicates the substance or mixture being tested is corrosive the follow up test on the other metal is not required.

Criteria for substances and mixtures corrosive to metals. Rogers, R.Evaluation of the fire and explosion risks in drying powders, Plant Operations Progress, 4(3), 181-189, 1985) with an onset temperature 60K above the reference temperature for a volume of 1l. Substances or mixtures which, in contact with water, emit flammable gases means solid or liquid substances or mixtures which, by interaction with water, are liable to become spontaneously flammable or to give off flammable gases in dangerous quantities. The test shall be performed on the substance or mixture in its physical form as presented. Any substance or mixture which reacts readily with water at ambient temperatures such that the maximum rate of evolution of flammable gas is equal to or greater than 20 litres per kilogram of substance per hour, and which does not meet the criteria for Category1. If the calculated flash point is less than 5oC greater than the relevant classification criterion, the calculation method may not be used and the flash point should be determined experimentally. There are no chemical groups associated with explosive properties present in the molecule. Label elements shall be used for substances, mixtures or articles meeting the criteria for classification in this hazard class in accordance with Table2.1.2. their self-accelerating decomposition temperature (SADT) is greater than 75oC for a 50kg package(3). CLASSIFICATION AND LABELLING REQUIREMENTS FOR HAZARDOUS SUBSTANCES AND MIXTURES. The classification procedures for self-reactive substances and mixtures need not be applied if: A pyrophoric liquid shall be classified in a single category for this class using test N.3 in PartIII, sub-section33.3.1.5 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria according to Table 2.9.1: The classification procedure for pyrophoric liquids need not be applied when experience in manufacture or handling shows that the substance or mixture does not ignite spontaneously on coming into contact with air at normal temperatures (i.e. https://unece.org/fileadmin/DAM/trans/danger/publi/manual/Rev7/Manual_Rev7_E.pdf, https://www.lithium-batterie-service.de/en/quality-management-program, Right of withdrawal for consumers and model withdrawal form, UN38.3 Test Summary and Supplier Inquiry Form Lithium Battery Service in English for batteries, UN38.3 Test Summary and Supplier Inquiry Form Lithium Battery Service in English for cells, UN38.3 Prfungszusammenfassung und Lieferantenabfrage Lithium Battery Service in Deutsch fr Batterien (Version 1/2020), UN38.3 Prfungszusammenfassung und Lieferantenabfrage Lithium Battery Service in Deutsch fr Zellen (Version 1/2020). They comprise compressed gases, liquefied gases, dissolved gases and refrigerated liquefied gases. NOTE to Table 2.1.2: Unpackaged explosives or explosives repacked in packaging other than the original or similar packaging shall include all of the following label elements: the hazard statement: explosive; mass explosion hazard. These tests are described in the United Nations manual called "UN manual of tests and criteria". Organic peroxides are thermally unstable substances or mixtures, which can undergo exothermic self-accelerating decomposition. One suitable method is described in Gmehling and Rasmussen (Ind. H270: May cause or intensify fire; oxidiser, A gas which when packaged under pressure is entirely gaseous at -50. not more than 0,5% available oxygen from the organic peroxides when containing more than 1,0% but not more than 7,0% hydrogen peroxide. If data are not available, the flash point and the initial boiling point shall be determined through testing. : A flammable aerosol shall be classified in one of the two categories for this Class on the basis of its components, of its chemical heat of combustion and, if applicable, of the results of the foam test (for foam aerosols) and of the ignition distance test and enclosed space test (for spray aerosols) in accordance with Figure 2.3.1 and the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, PartIII, sub-sections31.4, 31.5 and 31.6. The first step is to ascertain whether the substance or mixture has explosive effects (TestSeries 1). the substance is known to be stable at room temperature for prolonged periods of time (days)). An unstable explosive is an explosive substance or mixture which is thermally unstable and/or too sensitive for normal handling, transport and use. the substance or mixture contains oxygen, fluorine or chlorine and these elements are chemically bonded only to carbon or hydrogen. This is regulated in the ADR and IMDG code in Special Provision 310 and for this variety of transport you can find the relevant checklist on our website via FIND A SINGLE CHECKLIST and "Detailed Search". If, for example, for the purposes of supply or transport, the same chemical is to be presented in a physical form different from that which was tested and which is considered likely to materially alter its performance in a classification test, the substance shall also be tested in the new form. You as shipper of lithium cells/batteries have to get the UN 38.3 Test Summary from the manufacturer of the cell/battery or from the supplier that the cells/batteries. At the moment the 7. revised edition of the UN manual of tests and criteria, Amendment 1 is valid. Closely related to the UN test series according to 38.3 is the additional requirement that the manufacturer of the lithium cells / lithium batteries must manufacture under a clearly described quality management program. Test methods for determining the SADT as well as the derivation of control and emergency temperatures are given in, PartII, section28 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria. The Grewer Oven test (VDI guideline 2263, Part1, 1990, Test methods for the Determination of the Safety Characteristics of Dusts) with an onset temperature 80K above the reference temperature for a volume of 1l; The Bulk Powder Screening Test (Gibson, N.Harper, D.J. The UN 38.3 Test Summary must included the following information: We have included all those information into our Supplier Inquiry Forms. In addition, they can have one or more of the following properties: An organic peroxide is regarded as possessing explosive properties when in laboratory testing the mixture (formulation) is liable to detonate, to deflagrate rapidly or to show a violent effect when heated under confinement. Any substance or mixture which, in the 1:1mixture, by mass, of substance (or mixture) and cellulose tested, exhibits a mean pressure rise time less than or equal to the mean pressure rise time of a 1:1mixture, by mass, of 40% aqueous sodium chlorate solution and cellulose; and the criteria for Category1 are not met.