ISO 23193-2020 pdf free

04-24-2021 comment

ISO 23193-2020 pdf free.Traditional Chinese medicine — Lyciumbarbarum and Lycium chinense fruit.
This document specifies the minimum requirements and test methods for Lycium barbarum and Lyciumchinense fruit, which is derived from the plant of Lycium barbarum L. or Lycium chinense Mill.
lt is applicable to Lycium barbarum and Lycium chinense fruit that is sold and used as herbal rawmaterials in the international trade, including unprocessed and traditionally processed materials.
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references, only the edition cited applies. Forundated references, the latest edition of the referenced document (including any amendments) applies.ISO 1575,Tea – Determination of total ash
ISO 1577,Tea —Determination of acid-insoluble ash
ISO 18664,Traditional Chinese Medicine – Determination of heavy metals in herbal medicines used inTraditional Chinese Medicine
ISO 20409,Traditional Chinese medicine — Panax notoginseng root and rhizome
ISO 21371,Traditional Chinese medicine — Labelling requirements of products intended for oral or topical useISO 22258,Traditional Chinese medicine —Determination of pesticide residues in natural products by gaschromatography
ISO 22590, Traditional Chinese medicine —Determination of sulfur dioxide in natural products by titrationWorld Health Organization Quality control methods for herbal materials,2011.For the purposes of this document, the following terms and definitions apply.
final sample:samples for the test required in this document
Note 1 to entry: Final samples may be packed in different materials meeting conditions for specific tests (e.g.moisture or total ash).
The structure of Lycium barbarum L., Lycium chinense Mill.and the dried ripe fruit are shown in Figure 1.Different features such as leaves, flowers and fruits in Lycium barbarum L.and Lycium chinense Mill,and methods for differentiating these two species, are given in Annex F.
See Figure 2.The powder is yellowish-orange or reddish-brown.Epidermal cells of outer pericarp (1)are polygonal or elongated-polygonal, about 60 um in diameter, with straight or slightly wavy walls,covered with a thick cuticle, with distinct, more-or-less parallel striations. Parenchymatous cells ofmesocarp (2) are thin-walled subpolygonal, containing reddish-orange or brownish-red sphericalaleurone granules [(3).Fragments of starchy endosperm cells (4)contain oil droplets.Stone cells of testa(5) are irregular polygonal, with distinct striations, thickened or slightly wavy walls.ISO 23193 pdf download.

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