T/TFHT C018-2019 Abolished Group standards

T/TFHT C018-2019 Meat Cistanche Product Standard

Publish Date: 2019-06-13 Implement Date: 2019-06-13 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/TFHT C018-2019

Standard Type: Group standards

Standard Status: Abolished

is_force_gb: no

CCS Name: Integrated agriculture and forestry

ICS Name: Drugs

Publish Date: 2019-06-13

Implement Date: 2019-06-13

Scope

Main Technical Content: 5 Test Methods 5.1 Water Content Determination - Take 2–5 g of the sample and spread it evenly in a dry and weight-constant flat weighing bottle, with a thickness not exceeding 5 mm and a loose sample not exceeding 10 mm. Weigh it precisely, open the bottle cap, dry it at 100–105°C for 5 hours, reseal the bottle cap, transfer it to a desiccator, and cool it for 30 minutes. Weigh it again precisely until the difference between two consecutive weighings does not exceed 5 mg. Calculate the water content (%) in the sample based on the weight loss. 5.2 Total Ash Determination - The sample must be pulverized to pass through a No. 2 sieve. Mix it evenly, take 2–3 g of the sample, place it in a crucible that has been dried to constant weight (accurate to 0.01 g), heat it slowly, ensuring it does not burn, until it is completely carbonized. Gradually increase the temperature to 500–600°C to completely ash it and achieve constant weight. Calculate the total ash content (%) in the sample based on the residue weight. If the sample is difficult to ash, cool the crucible, add 2 mL of water or 10% ammonium nitrate solution to moisten the residue, then evaporate it on a water bath. Ash the contents of the crucible until complete carbonization. 5.3 Extract Determination - Take approximately 4 g of the sample, weigh it precisely, place it in a 250–300 mL conical flask, add 100 mL of water precisely, seal it, and shake it every 6 hours for the first 18 hours. Filter it rapidly with a dry filter, and measure 20 mL of the filtrate. Place it in an evaporating dish that has been dried to constant weight. Evaporate it on a water bath at 105°C for 3 hours, then cool it in a desiccator for 30 minutes and weigh it precisely. Unless otherwise specified, calculate the water-soluble extract content (%) in the sample based on the dry product. Use diluted ethanol as the solvent. 5.4 Content Determination Chromatographic Conditions and System Suitab