GS1 is a not-for-profit organisation that develops and maintains global standards for business communication. The best known of these standards is the barcode, a symbol printed on products that can be scanned electronically. 


The identification of the geographic location of an object.

Gravure (rotogravure) printing

A type of intaglio printing process, which involves engraving an image onto a cylinder. Like offset printing and flexography, gravure uses a rotary printing press.

Guilloche pattern

A printed security feature composed of geometric, complex patterns of interlaced or interwoven curved fine lines that are difficult to reproduce using digital print or photocopiers.

Gas chromatography

An analytical technique to separate the chemical components of a sample mixture and then detect those components to determine their presence or absence and how much is present. The components are usually organic molecules or gases.