This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage for Yidu's brewing of Xiaoqu liquor. This standard applies to Yidu Brewing Xiaoqu Baijiu made from grains as raw materials through pretreatment, cooking, culture saccharification, solid-state fermentation, distillation, aging, blending, clarification, filtration, filling and other processes. Main physical and chemical indicators methanol, g/L≤ 0.6 cyanide (calculated as HCN), mg/L≤ 8.0