Overview
ISO 19836:2025 - Traditional Chinese medicine - Platycodon grandiflorus root establishes minimum requirements and test methods for the dried root of Platycodon grandiflorus used as natural medicine and decoction pieces in international trade. The standard covers identification, quality and safety criteria, sampling, test methods, packaging, storage and labelling for Platycodon grandiflorus root (Chinese material medica). Key SEO keywords: ISO 19836:2025, Platycodon grandiflorus root, Traditional Chinese medicine, quality and safety requirements, platycodin D.
Key topics and technical requirements
- Scope and definitions: Applies to whole medicinal material and decoction pieces of Platycodon grandiflorus root.
- Macroscopic and microscopic identification:
- Morphology: cylindrical/slightly fusiform roots, 7–20 cm length and 0.7–2.0 cm diameter.
- Colour, fracture and texture descriptions (peeled vs. unpeeled surfaces).
- Microscopic features: cork, phelloderm, laticiferous tube groups, xylem structure; powder characteristics including inulin and vessel fragment sizes.
- Quality and safety parameters:
- Moisture, total ash and acid‑insoluble ash.
- Dilute ethanol‑soluble extractives.
- Marker compound(s): determination of platycodin D content (informative annex).
- Contaminant testing: heavy metals, pesticide residues and sulfur dioxide.
- Analytical methods:
- Thin‑layer chromatography (TLC) identification.
- Microscopic examination.
- Specific test procedures for moisture, ash, extractives, platycodin D and contaminants (including referenced ISO methods).
- Operational requirements:
- Sampling, test reporting, packaging, storage, transportation, marking and labelling guidance.
Practical applications and users
ISO 19836:2025 is practical for:
- Manufacturers and processors of herbal raw materials and decoction pieces - to implement consistent quality control and product specifications.
- Analytical and quality‑control laboratories - for validated TLC, microscopy and chemical determinations (including platycodin D analysis).
- Regulators and customs authorities - to assess conformity of imported/exported Platycodon root material.
- Traders and exporters/importers - to meet international trade requirements and reduce non‑conformances.
- Pharmacopoeia committees and TCM practitioners - as a harmonized reference supporting safety and efficacy considerations.
Benefits include improved product safety, reproducible quality criteria, and facilitation of international trade in Traditional Chinese medicine ingredients.
Related standards