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The most common dangerous goods are assigned a UN number, a four digit code which identifies it internationally. Less common substances are transported under generic codes such as "UN1993: flammable liquid, not otherwise specified". The UN Recommendations do not cover the manufacturing, use or disposal of dangerous goods.
The Code is designed to minimise the dangers to ship from carrying solid bulk cargoes. [2] It provides information on the dangers of cargo, as well as procedures for loading and unloading of cargoes. [2] Cargoes are categorized according to three cargo groups: A, B and C. [5] Group A refers to cargoes that may liquefy.
The pictogram for harmful substances of the Globally Harmonized System of Classification and Labelling of Chemicals.. The Globally Harmonized System of Classification and Labelling of Chemicals (GHS) is an internationally agreed-upon standard managed by the United Nations that was set up to replace the assortment of hazardous material classification and labelling schemes previously used around ...
A United States placard showing the UN number 1814, indicating potassium hydroxide solution, on a railroad tank car.. A UN number (United Nations number) is a four-digit number that identifies hazardous materials, and articles (such as explosives, flammable liquids, oxidizers, toxic liquids, etc.) in the framework of international trade and transport.
The Code is updated and maintained by a sub-Committee of the International Maritime Organization, the Sub-Committee on Carriage of Cargoes and Containers (CCC), every 2 years. Prior to 2013 the Carriage of Dangerous Goods, Solid Cargoes and Containers (DSC) sub-committee had responsibility for the Code.
ADR, formally the Agreement of 30 September 1957 concerning the International Carriage of Dangerous Goods by Road is a 1957 United Nations treaty that governs transnational transport of hazardous materials.
The following exceptions apply: Any liquid meeting one of the definitions specified in 49CFR 173.115. Any mixture having one or more components with a flash point of 60.5 °C (141 °F) or higher, that make up at least 99 percent of the total volume of the mixture, if the mixture is not offered for transportation or transported at or above its ...
The Workplace Hazardous Materials Information System, or WHMIS, is Canada's national workplace hazard communication standard, first introduced in 1988, and included eight chemical hazard symbols. [30] This system was brought into alignment with GHS in 2015, with a gradual phase in of GHS symbols and label designs through 15 December 2025. [25]