Single layer of carbon atoms with each atom bound to three neighbors in a honeycomb structure
Reference : ISO/TS 80004-3:2010
Single sheet of trigonally bonded (sp2) carbon atoms in a hexagonal structure
Reference : PAS 136:2007 (Terminology for nanomaterials)
single layer material consisting of a two-dimensional sheet of carbon and hydrogen with the repeating unit of (CH)n
Reference : ISO/TS 80004-13:2017