Alcohol (parameter) detection

This standard specifies the method for determining the alcohol content in alcohol, distilled liquor, fermented liquor, and prepared liquor. This standard is applicable to the determination of alcohol content in alcohol, distilled liquor, fermented liquor, and prepared liquor. Among them: the first method is applicable to distilled spirits, fermented spirits, and blended spirits, the second method is applicable to alcohol and distilled spirits, fermented spirits, and blended spirits (excluding beer), the third method is applicable to wine, fruit wine, and beer, and the fourth method is applicable to digital densitometer for beer, brandy, whiskey, and vodka. The first method, density bottle method 2, uses distillation to remove non volatile substances from the sample. The density of the sample (alcohol aqueous solution) at 20 ℃ is measured using the density bottle method, and the volume fraction of ethanol content at 20 ℃ is obtained by referring to Appendix A. This is the alcohol content. 3 Instruments and equipment 3.1 Analytical balance: sensitivity 0.000 1 g. 3.2 Full glass still: 500 mL. 3.3 Constant temperature water bath; Temperature control accuracy: 0.1 ℃. 3.4 Attached thermometer density bottle: 25 rmL or 50 mL

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