BS ISO 18668-3:2017 pdf download

BS ISO 18668-3:2017 pdf download.Traditional Chinese medicine — Coding system for Chinese medicines — Part 3: Codes for Chinese Materia Medica
1 Scope
This document encodes 592 kinds of Chinese Materia Medica, according to the rules in ISO 18668-1.
This document is suitable for coding of Chinese Materia Medica, as well as Chinese Materia Medica in the fields of clinical medication, scientific research, teaching, statistics and management.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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.
ISO 18668-1, Traditional Chinese medicine — Coding system for Chinese medicines — Part 1: Coding rules for Chinese medicines
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 18668-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp/
4 Coding principles
4.1 Uniqueness
Each variety and processed form corresponds to a unique code.
4.2 Scientificity
By applying scientific research to decide the classification methods and principles, the most stable properties, attributes, and characteristics of each Chinese medicines are used as basis for classification and coding. Thus, the structure of 17 digits with 10 layers as coding rules for Chinese medicines covers information of medicinal source, medicinal part, specification, and processing method, which respectively represent the basic characteristics, commercial attributes and professional attributes of Chinese medicines.
4.3 Scalability
The coding rules allow sufficient space for expansion.
4.4 Compatibility
The coding rules are consistent with relevant existing International Standards.
4.5 Stability
The code for each Chinese medicine remains unchanged once assigned.
The code for each Chinese medicine remains unchanged once assigned, as long as the basic characteristic of the medicinal does not change. Even if some Chinese medicines are discontinued for production and use, their codes should still be kept.
5 Coding structure
Coding rules are represented by 10 layers with 17 digit Arabic numerals in order. The structure is encoded according to the rules in ISO 18668-1 as shown in Figure 1. See ISO 18668-1 for technical requirements.