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  2. Globally Harmonized System of Classification and Labelling of ...

    en.wikipedia.org/wiki/Globally_Harmonized_System...

    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 ...

  3. Reactive airway disease - Wikipedia

    en.wikipedia.org/wiki/Reactive_airway_disease

    Reactive airway disease (RAD) is an informal label that physicians apply to patients with symptoms similar to those of asthma. [1] An exact definition of the condition does not exist. [1][2] Individuals who are typically labeled as having RAD generally have a history of wheezing, coughing, dyspnea, and production of sputum that may or may not ...

  4. GHS hazard statements - Wikipedia

    en.wikipedia.org/wiki/GHS_hazard_statements

    Hazard statements are one of the key elements for the labelling of containers under the GHS, along with: [3] the identity of the supplier (who might be a manufacturer or importer). Each hazard statement is designated a code, starting with the letter H and followed by three digits. Statements which correspond to related hazards are grouped ...

  5. Hazard symbol - Wikipedia

    en.wikipedia.org/wiki/Hazard_symbol

    Hazard symbols are recognizable symbols designed to warn about hazardous or dangerous materials, locations, or objects, including electromagnetic fields, electric currents; harsh, toxic or unstable chemicals (acids, poisons, explosives); and radioactivity. The use of hazard symbols is often regulated by law and directed by standards organizations.

  6. Recreational use of nitrous oxide - Wikipedia

    en.wikipedia.org/wiki/Recreational_use_of...

    Recreational use of nitrous oxide. Nitrous oxide, commonly referred with street names such as nangs, Nitrus, hippy crack, whippets, whippits or cannies, is an inert gas which can induce euphoria, hallucinogenic states of mind, and relaxation when inhaled. [1] Nitrous oxide has no acute biochemical or cellular toxicity and is not metabolized in ...

  7. Pin Index Safety System - Wikipedia

    en.wikipedia.org/wiki/Pin_Index_Safety_System

    The Pin Index Safety System (PISS) is a means of connecting high pressure cylinders containing medical gases to a regulator or other utilization equipment. It uses geometric features on the valve and yoke to prevent mistaken use of the wrong gas. This system is widely used worldwide for anesthesia machines, portable oxygen administration sets ...