BS ISO 18664:2015

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Analytical methods
Annex A (informative) - Reference of national, regional
        and organizational limits of heavy metals in
        natural TCM materials and calculated limits using
        Target Hazard Quotients based on USEPA
        and WHO
Bibliography

Defines determination methods of lead (Pb), arsenic (As), cadmium (Cd) and mercury (Hg) in herbal medicines used in Traditional Chinese Medicine (TCM).

This International Standard specifies determination methods of lead (Pb), arsenic (As), cadmium (Cd) and mercury (Hg) in herbal medicines used in Traditional Chinese Medicine (TCM). It is applicable to natural materials of TCM that are sold and used as food supplements, functional foods or natural medicines in international trade, including Chinese materia medica (whole medicinal materials) and decoction pieces derived from plants or animals. It is not applicable to mineral drugs used in TCM.

This International Standard is not intended to set maximum limits (ML) for individual nations; rather, it is intended to give a reference for standardized testing method and risk assessment.