GB/T 39855-2021Definition,classification and nomenclature of nanotechnology products (English PDF)

3.1 Nanoscale

It is in the size range between 1nm and 100nm.

Note 1.The range of this scale usually, but not exclusively, shows characteristics that cannot be extrapolated from larger sizes. For these characteristics, the upper and lower limits of the scale are similar.

Note 2.The purpose of introducing the lower limit (about 1nm) in this definition is to avoid that when the lower limit is not set, a single or a small cluster of atoms is defaulted to be a nano-object or nano Meter structural unit. [GB/T 30544.1-2014, definition 2.1]

3.2 Nanotechnology

Apply scientific knowledge to manipulate and control materials at the nanometer scale (3.1) in order to utilize material properties that are significantly different from single atoms, molecules or bulk materials The properties and phenomena related to size and structure.

Note: Manipulation and control include material synthesis. [GB/T 30544.1-2014, definition 2.3]

3.3 Nanomaterial

Any material whose external dimension, internal or surface structure is at the nanometer scale (3.1). [GB/T 30544.1-2014, definition 2.4]

3.4 Nanotechnologyproduct

Nanotechnology products Products composed of nanomaterials or with nanostructures, the main performance changes significantly after adding nanomaterials or processing with nanotechnology The product.

Note 1.Significant changes refer to functional or performance enhancements or improvements that can only be shown through nanotechnology.

Note 2.Rewrite ISO /T S18110.2015, definition 2.5 and definition 2.6.

5.2 Nano products composed or composed of nano materials

5.2.1 The full name of the product should be composed of nano plus the basic name (characteristic or professional use). Example: Nano titanium dioxide.

Note: If the nanomaterial has a widely used professional term, use the used name for naming. Examples. graphene, quantum dots, carbon nanotubes, etc.

5.2.2 The representation method and description of the product naming rules are as follows.

5.3 Nano products added with nano materials

5.3.1 The full name of the product should adopt the following naming rules. the name of the nanomaterial added to the subject name (required) function (optional).

Examples. water purifier (containing nano activated carbon), toothbrush (nano soft gel antibacterial).

Note: If the nanomaterial has a widely used professional term, use the used name for naming.

Examples. heat sink (graphene heat dissipation), display (quantum dot light emission).

5.3.2 Representation method and description of product naming rules.

5.3.3 The following naming rules should not be used for product naming.

The name function of the nano material added by Nano (optional). Example: Nano-mineral crystal air purifier for removing formaldehyde. Or function (optional) Nano subject name.

Examples. Nano refrigerators, nano washing machines, nano liquid glass resistant to hospital germs, etc.

5.4 Nano products processed using nanotechnology

5.4.1 Product naming should adopt the following naming rules. Subject name Nanotechnology processing method (required) Function (optional).

Examples. Refrigerator (nano-coated antibacterial), laundry color absorption sheet (nano-adsorption), chip (nano-etching).

Note 1.Nano processing methods can be determined by various industries.

Note 2.If the nanomaterial has a widely used professional term, use the used name for naming.

5.4.2 Representation method and description of product naming rules.

5.4.3 The following naming rules should not be used for product names. Nano and Nano processing methods (optional) Subject name. Examples. Nano marble, nano adsorption activated carbon, nano antibacterial underwear.

A.1 Nano products composed or composed of nano materials

Nano silicon dioxide, nano phosphorene, graphene quantum dots, nano silver particles.

A.2 Nano products added with nano materials

Graphene lithium battery, face cream (polypeptide repair acne marks), dressing package (nano silver antibacterial).

A.3 Nano products processed using nanotechnology

Circuit board (nano coating), 3D printer (nano inkjet), sunscreen (nanoparticle emulsification).