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A retort shape inside a unit frame.
Also known as: CBRN unit icon, Chemical defence icon, NBC unit symbol
In NATO joint military symbology a retort shape denotes a chemical, biological, radiological and nuclear defence unit: troops who detect and decontaminate rather than employ such agents.
Denotes a unit specialising in defence against chemical, biological, radiological and nuclear hazards.
Contexts: Maps
Marks a defensive and detection role; the standard does not use this icon to denote a capability to employ such agents.
Contexts: Maps
A rounded vessel with a narrow neck curving away to one side, in the shape of a laboratory retort.