GB/T 39855-2021 Definition, classification and nomenclature of nanotechnology products
1 Scope
This standard specifies the terms and definitions, classification and nomenclature of nanotechnology products.
This standard is applicable to nanotechnology products consisting of or constructed of nanomaterials, nanotechnology products with nanomaterials added and nanotechnology products processed using nanotechnology.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 30544.1-2014 Nanotechnologies - Vocabulary - Part 1: Core terms
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 30544.1-2014 and the following apply.
3.1
nanoscale
length range approximately from 1 nm and 100 nm
Notes
1 This scale range typically, but not exclusively, exhibits characteristics that cannot be extrapolated from larger sizes, for which the upper and lower scale limits are approximate.
2 The purpose of introducing a lower limit (about 1 nm) in this definition is to avoid that individual or small clusters of atoms are defaulted to being nano-objects or nanostructured units when no lower limit is set.
[GB/T 30544.1-2014, Definition 2.1]
3.2
nanotechnology
application of scientific knowledge to manipulate and control matter predominantly in the nanoscale (3.1) to make use of size- and structure-dependent properties and phenomena distinct from those associated with individual atoms, molecules, or bulk materials
Note: Manipulation and control includes material synthesis.
[GB/T 30544.1-2014, Definition 2.3]
3.3
nanomaterial
material with any external dimension in the nanoscale (3.1) or having internal structure or surface structure in the nanoscale
[GB/T 30544.1-2014, Definition 2.4]
3.4
nanotechnology product
products consisting of nanomaterials or with nanostructures, products with nanomaterials added, or products with significant changes in their main performances after being processed with nanotechnology
Notes
1 Significant change means an enhancement or improvement in functionality or performance that could only be demonstrated through nanotechnology.
2 It is revised from ISO/TS 18110: 2015, Definitions 2.5 and 2.6.
4 Classification
Nanotechnology products can be classified into three categories based on how they are prepared, see Figure 1:
a) The first category is nanotechnology products consisting of or constructed of nanomaterials;
b) The second category is nanotechnology products with nanomaterials added;
c) The third category is nanotechnology products processed using nanotechnology.
Note: The processes using nanotechnology include, but are not limited to, coating, injection molding, imprinting, and machining.
Figure 1 Classification of nanotechnology product
5 General rules for nomenclature
5.1 General
Contents
Foreword i
Introduction ii
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 General rules for nomenclature
6 Examples for nanotechnology product naming
Annex A (Informative) Examples for nanotechnology product naming
Bibliography
