The International Organization for Standardization (ISO) has published standard ISO/TR 19733:2019, “Nanotechnologies — Matrix of properties and measurement techniques for graphene and related two-dimensional (2D) materials.” ISO states that since graphene was discovered in 2004, it has become one of the most attractive materials in application research and device industry due to its supreme material properties such as mechanical strength, stiffness and elasticity, high electrical and thermal conductivity, and optical transparency. According to ISO, it is expected that applications of graphene could replace many of the current device development technology in flexible touch panel, organic light emitting diode (OLED), solar cell, supercapacitor, and electromagnetic shielding. To gain deeper understanding of the material properties and to find ways to mass produce with fine quality, universities, research institutes, and laboratories are researching graphene and similarly related 2D materials. To lead these revolutionary materials to full commercialization, however, it is essentially demanded that characterization and measurement techniques for important material properties need to be standardized and globally recognized. In the standard, characterization and measurement techniques for particular properties of graphene and related 2D materials that need to be standardized are organized in a form of a matrix. ISO suggests that the matrix could serve as an initial guide for developing the necessary international standards in characterization and measurements of graphene and related 2D materials.