UN UN Number

2192 in un

This is one of the fields contained within the Occupational Exposure superfield (ZOCE) which itself is associated with the Occupational Exposure message field (OE).

The number is sometimes accompanied by additional text referring to the exact physical state of the substance Multiple occurrences are separated with "; ".

The United Nations Number is a four-figure code used to identify hazardous chemicals and is used for identification of chemicals transported internationally by road, rail, sea and air. In the UK this number is also called the "Substance Identification Number" or "SI Number".