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The world's first ISO (International Organization for Standardization) graphene standard has been published. The standard will provide a consistent standard for the emerging global graphene industry and accelerate the commercial development of 2D materials represented by graphene. 
A new international standard developed by the National Physical Laboratory (NPL) of the United Kingdom defines terms used to describe many different forms of graphene and related 2D materials, providing a basis and standard for testing and verification of graphene. This will provide a clear basis for graphene-related manufacturers, suppliers, NGOs, industry alliances and academia to help unlock new applications for graphene, reduce manufacturing costs, and drive the development of next-generation computer chips. Industrial scale graphene materials for garment smart sensors. Due to the excellent properties and broad market prospects of graphene, the enthusiasm for graphene in academic and industrial circles has been increasing. There are hundreds of companies around the world involved in the preparation or application of graphene. Graphene is forming a huge industry. . However, although terms such as "epitaxial graphene", "graphene oxide" and "small layer graphene" have been widely used throughout the industry, these terms are not generally accepted until the publication of this new standard. definition. Even in some cases, hundreds of layers of graphene are incorrectly labeled as "small layer graphene." This can result in companies that are developing new products that do not fully understand the performance of commercially available graphene materials and select the materials that best suit their application. The absence of standards is a key barrier to the commercialization of graphene products, affecting the trust of graphene suppliers. Recognizing the clear need for the graphene industry, NPL initiated the development of the graphene ISO standard in 2013 as part of the British Standards Institute (BSI) UK Nanotechnology Standardization Committee (NTI / 1). After a rigorous development process involving 37 technical experts from different countries, the standard is now available online and contains 99 terms and definitions for 2D materials, material production, material properties and material property types, all of which can be Obtained free of charge in the ISO online browsing platform. Dr. Poll Pollard of NPL and Dr. Charles Clifford jointly led the development of the standard. He commented: “Graphite producers and end users have been worried for years. Inconsistent definitions and terminology mean that the commercialization of these materials is slow and difficult. Determining the difference between graphene and graphite products. This standard addresses this obstacle and is the first step toward standardization in the emerging industry of graphene. 
Standard Name: ISO/TS 80004-13:2017(en): Graphene and related two-dimensional (2D) materials Graphene and related two-dimensional materials . Some of the terms related to graphene: graphene: graphene layer: Single-layer graphene: Definition: A single layer of carbon atoms, each atom bonded to an adjacent three carbon atoms in a honeycomb structure. (single layer of carbon atoms with each atom bound to three neighbours in a honeycomb structure). Note 1: This is an important part of many carbon nanomaterials. Note 2: Since graphene is a single layer, it is sometimes called single-layer graphene, abbreviated as 1LG, to distinguish it from double-layer graphene (2LG) and layered graphene (FLG). Note 3: Graphene has edges and may have defects and grain boundaries where the bond is broken. Bilayer Graphene: 2LG is a two-dimensional material consisting of two layers of graphene that have been clearly defined. Note 1: If the stacking method is known, it can be specified separately, for example “Bernal stacked double-layer grapheneâ€. Twisted bilayer graphene: eddy current bilayer graphene: tBLG t2LG is a two-dimensional material consisting of two well-defined graphene layers with relative stacking angles, or relative rotation, non-Bernal or hexagonal accumulation. Three-layer graphene: 3LG is a two-dimensional material composed of three well-defined laminated graphene layers. Note 1: If the stacking method is known, it can be specified separately, such as “twisted three-layer grapheneâ€. Less Layer Graphene: FLG consists of two to ten well-defined stacked graphene layers of two-dimensional material graphene nanosheets (plates): GNP nanoplates composed of graphene layers (sheets) Note 1: GNP usually has 1 nm To a thickness of 3 nm and a lateral dimension of about 100 nm to 100 μm. Graphene oxide: Chemically modified graphene prepared by GO oxidation and stripping of graphite. Note 1: Graphene oxide is a single-layer material with a high oxygen content, which is typically characterized by a C/O atomic ratio of about 2.0, depending on the synthesis method. Reduction of graphene oxide: RGO reduced graphite oxide to reduce oxygen content Note 1: It can be prepared by reducing the heavy oxygen content of graphene oxide by chemical, thermal, microwave, photochemical, photothermal or microbial/bacterial methods. Note 2: If graphene oxide is completely reduced, it becomes a graphene product. However, in practice, some oxygen-containing functional groups will remain and not all sp3 bonds will return to the sp2 configuration. Different reducing agents will result in different carbon to oxygen ratios and different chemical compositions in the reduced graphene oxide. Note 3: There may be different forms, such as sheet and worm-like structures. About ISO standards: ISO standards refer to standards established by the International Organization for Standardization (ISO). The International Organization for Standardization is a worldwide federation of national standardization bodies with 140 member states. According to the constitution of the organization, each country can only have one of the most representative standardization bodies as its members. The former State Bureau of Quality and Technical Supervision participates in ISO activities with the name of CSBTS.
The world's first graphene international standard was introduced!
According to the NPL (National Physics Laboratory) official website, the world's first ISO graphene standard has been published. Developed by the National Physical Laboratory (NPL), the standard defines terms used to describe many different forms of graphene and related 2D materials, providing the basis and criteria for testing and verification of graphene. This standard will provide a consistent standard for the graphene industry and accelerate the commercial development of 2D materials represented by graphene.