T/SXZYC 006-2023 Astragalus Seed Quality Standard

Scope

Main Technical Content: 1. Source of Test Materials: Astragalus membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao seeds were collected from 10 different regions in Shanxi Province from May 2018 to the present. The seeds were identified by Professor Wang Wenquan of the Institute of Medicinal Plants, Chinese Academy of Medical Sciences as Astragalus membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao. The information on the seed production sites is shown in Table 1. **Table 1: Origin and Sampling Information of Mongolian Astragalus Seeds** | **Sample No.** | **Origin** | | --- | --- | | 1 | Xiaoyinchan Village, Shanxi Province | | 2 | Caishiziyi Village, Shanxi Province | | 3 | Ma Zhang Village, Shanxi Province | | 4 | Guan'er Village, Shanxi Province | | 5 | Huangyao Village, Shanxi Province | | 6 | Changyu Village, Shanxi Province | | 7 | Pingdao Village, Shanxi Province | | 8 | Heishi Village, Shanxi Province | | 9 | Songlinggou Village, Shanxi Province | | 10 | Tuling Village, Shanxi Province | 2. Seed Quality Testing 2.1 Seed Testing Flowchart 2.2 Sampling Reference Sampling was conducted in accordance with GB/T 3543.2 (Agricultural Seed Inspection Procedures - Sampling). The maximum weight of a seed batch was determined by GB/T 3543.2, and the tested samples and purity analysis were determined by GB/T 2930.1. Each seed batch should not exceed 10,000 kg in weight, with a minimum purity analysis weight of 20 g and a minimum tested sample weight of 200 g, with a permissible deviation of 5%. If the weight exceeds the specified limit, the batch should be divided and assigned a separate batch number. If the weight is less than or equal to 1% of the specified weight, it is considered a small batch of seeds. The test samples were prepared using the "manual halving method": - Spread the seeds evenly on a clean paper tray; - Use a flat-edged scraper to mix the samples vertically and horizontally four

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