This document specifies the characteristics and their respective measurement methods of graphene-related 2D materials in sheet and particle forms for commercial applications with the aim of classification of the materials. The classification framework consists of the following elements:

a)       relevant material characteristics for commercial use;

b)       identification of applicable measurement methods;

c)        a range of the characteristic measured values when applicable;

d)       syntax to guide consistent naming and descriptions;

e)       an applicable technical data sheet template.