Dangerous goodsDangerous goods are substances that are a risk to health, safety, property or the environment during transport. Certain dangerous goods that pose risks even when not being transported are known as hazardous materials (syllabically abbreviated as HAZMAT or hazmat). An example of dangerous goods is hazardous waste which is waste that threatens public health or the environment. Hazardous materials are often subject to chemical regulations.
UN Recommendations on the Transport of Dangerous GoodsThe UN Recommendations on the Transport of Dangerous Goods are contained in the UN Model Regulations prepared by the Subcommittee of Experts on the Transport of Dangerous Goods of the United Nations Economic and Social Council (ECOSOC). They cover the transport of dangerous goods by all modes of transport except by bulk tanker.
Oxidizing agentAn oxidizing agent (also known as an oxidant, oxidizer, electron recipient, or electron acceptor) is a substance in a redox chemical reaction that gains or "accepts"/"receives" an electron from a reducing agent (called the reductant, reducer, or electron donor). In other words, an oxidizer is any substance that oxidizes another substance.
PyrophoricityA substance is pyrophoric (from Ancient Greek: πυροφόρος, pyrophoros, 'fire-bearing') if it ignites spontaneously in air at or below 54 °C (129 °F) (for gases) or within five minutes after coming into contact with air (for liquids and solids). Examples are organolithium compounds and triethylborane, as well as actinides. Pyrophoric materials are often water-reactive as well and will ignite when they contact water or humid air.
UN numberUnited Nations code for dangerous substances 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.
Occupational Safety and Health AdministrationThe Occupational Safety and Health Administration (OSHA; ) is a regulatory agency of the United States Department of Labor with federal visitorial powers to inspect and examine workplaces. The United States Congress established the agency under the Occupational Safety and Health Act (OSH Act), which President Richard M. Nixon signed into law on December 29, 1970.
PictogramA pictogram (also pictogramme, pictograph, or simply picto) is a graphic symbol that conveys meaning through its visual resemblance to a physical object. Pictograms are used in systems of writing and visual communication. A pictography is a writing system which uses pictograms. Some pictograms, such as hazard pictograms, may be elements of formal languages.
CLP RegulationThe CLP Regulation (for "Classification, Labelling and Packaging") is a European Union regulation from 2008, which aligns the European Union system of classification, labelling and packaging of chemical substances and mixtures to the Globally Harmonised System (GHS). It is expected to facilitate global trade and the harmonised communication of hazard information of chemicals and to promote regulatory efficiency.
United NationsFlagEmblemMembers of the United NationsHeadquarters760 United Nations Plaza, Manhattan, New York City (international zone)Official languagesArabicChineseEnglishFrenchRussianSpanishOfficial scriptArabicCyrillicLatinSimplified ChineseTypeIntergovernmental organizationMembership193 member states2 observer statesLeaders• Secretary‑GeneralAntónio Guterres• Deputy Secretary-GeneralAmina J. Mohammed• General Assembly PresidentKhalilur Rahman• Economic and Social Council PresidentAmar BendjamaEstablishment• UN Charter signed 26 June 1945 (1945-06-26)• Charter entered into force 24 October 1945 (1945-10-24)Websiteun.orgThe United Nations (UN) is an international intergovernmental organization established by the signing of the Charter of the United Nations on 26 June 1945 with the articulated mission of maintaining international peace and security, to develop friendly relations among states, to promote international cooperation, and to serve as a centre for harmonizing the actions of states in achieving those goals.European UnionThe European Union (EU) is a political and economic union of 27 member states that are located primarily in Europe. A supranational union with a total area of 4,233,255 km2 (1,634,469 sq mi) and an estimated population of just under 452 million as of 2026, its member states generated a nominal gross domestic product (GDP) of around €18.802 trillion in 2025, accounting for approximately one sixth of global economic output.
United Nations SecretariatThe United Nations Secretariat is one of the six principal organs of the United Nations (UN). The secretariat is the UN's Engine and Civil Service. The secretariat has an important role in setting the agenda for the deliberative and decision-making bodies of the UN (i.e., the General Assembly, Economic and Social Council, and Security Council), and the implementation of the decision of these bodies.Standard temperature and pressureStandard temperature and pressure (STP), or standard conditions for temperature and pressure, are various standard sets of conditions for experimental measurements used to allow comparisons to be made between different sets of data. The most used standards are those of the International Union of Pure and Applied Chemistry (IUPAC) and the National Institute of Standards and Technology (NIST), although these are not universally accepted.
sensitizerRelated word or term.*As an Amazon Associate I earn from qualifying purchases.