Overview
ISO 21300:2019 - Traditional Chinese medicine: Guidelines and specification for Chinese materia medica provides a framework for preparing consistent, transparent specifications for Chinese materia medica (CMM). The standard explains how to classify CMM into categories and gives guidance for writing individual materia medica specifications to support quality control, trade and regulatory oversight across international markets.
Key topics and requirements
ISO 21300:2019 focuses on specification structure and measurable quality indicators. Major technical topics include:
- General specification requirements - guidance for dividing CMM into categories (e.g., by origin, growing method, medicinal part).
- Chemical and contamination testing - mandates determination (as applicable) of total ash, sulfated ash, ash insoluble in HCl, heavy metals, pesticide residues, sulfur dioxide, and aflatoxin.
- Identification and marker compounds - identification of characteristic marker compounds for each CMM.
- Physical and quality indicators - extraneous matter rate, morphology (individual count per 500 g, length/thickness/diameter, colour), harvest time, and primary processing descriptions.
- Foreign matter and hygiene - determination of foreign material content.
- Marking, labelling, packaging, transport and storage - requirements to ensure traceability and preserve quality during distribution.
- Documentation and terminology - use of Latin, Chinese (simplified/traditional), Pinyin and English names for clear identification.
The standard specifies which tests are mandatory or conditional “depending on the characteristics of the Chinese materia medica” rather than prescribing fixed numerical limits.
Applications and users
ISO 21300:2019 is practical for:
- Manufacturers and processors of Chinese materia medica preparing product specifications and quality dossiers.
- Quality control and analytical laboratories performing required testing (heavy metals, aflatoxins, pesticide residues, ash values).
- Importers, exporters and trading companies standardizing categories for pricing and commercial grading.
- Regulatory agencies and customs authorities assessing CMM safety and labelling compliance.
- Practitioners and distributors seeking traceability and consistent product descriptions.
Benefits include improved market transparency, harmonized quality criteria, safer products, and facilitated international trade of Traditional Chinese Medicine (TCM) raw materials.
Related standards
- ISO 21371 - Traditional Chinese medicine - Labelling requirements of products intended for oral or topical use. This document is cited as a normative reference in ISO 21300:2019.
Keywords: ISO 21300:2019, Traditional Chinese medicine, Chinese materia medica, CMM specification, quality control, pesticide residues, heavy metals, aflatoxin, labelling, TCM trade.