Manual of Tests and Criteria

Amendment 1
Details criteria and test methods for classifying dangerous goods and hazardous chemicals per UN Model Regulations and the GHS. It outlines updated procedures covering flammability, lithium battery safety, burning rate tests, and fibre reinforced materials, incorporating expert committee revisions and amendments.
The ""Manual of Tests and Criteria"" contains criteria, test methods and procedures to be used for the classification of dangerous goods according to the provisions of the ""United Nations Recommendations on the Transport of Dangerous Goods, Model Regulations"", as well as of chemicals presenting physical hazards according to the ""Globally Harmonized System of Classification and Labelling of Chemicals (GHS)"". It therefore also supplements national or international regulations which are derived from the Model Regulations or the GHS. Originally developed by the Economic and Social Council’s Committee of Experts on the Transport of Dangerous Goods, which adopted a first version in 1984, the Manual of Tests and Criteria has been regularly updated and amended. Currently, the updating is done under the auspices of the Committee of Experts on the Transport of Dangerous Goods and on the Globally Harmonized System of Classification and Labelling of Chemicals, which replaced the original committee in 2001. At its twelfth session (6 December 2024) , the Committee adopted a set of amendments to the eighth revised edition of the Manual, which were circulated as document ST/SG/AC.10/52/Add.2 and are listed in this publication. They address mainly: - Changes to sections 11, 12, 18 and 25 and a new appendix 12 addressing Koenen tube test specifications and test procedures; - Changes to section 31 for alignment of the definitions of flammable components and heat of combustion with the criteria in special provision 63 in the Model Regulations; - Changes to subsection 38.3 addressing lithium batteries and the definition of rupture; - The review of sub-section 51.4 for further improvement of the burning rate test criteria and method of assessing results; and - A new section 42 containing a test method to prove the fire resistance of fibre reinforced plastics service equipment for portable tanks.

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