JB/T 51222-1999

Manufacturers and quality inspection agencies of rice huller-miller combined machines use this standard to evaluate and grade product quality. They classify products into qualified, first-class, and premium grades based on the quality indicators, test methods, and inspection rules specified. This standard ensures consistent performance in milling accuracy, rice yield, energy consumption, and safety, playing a crucial role in maintaining grain processing quality and industry standardization.

砻碾组合米机的制造商和质检机构使用本标准来评估和分级产品质量。他们依据本标准中的质量指标、试验方法和检验规则，对产品进行合格品、一等品和优等品的划分。该标准确保了组合米机在加工精度、出米率、能耗和安全性等方面达到统一要求，对保障粮食加工质量和行业规范化具有重要意义。

This standard JB/T 51222-1999 specifies the product quality grading requirements for rice huller-miller combined machines, including quality indicators, test methods, and inspection rules. Products are classified into three grades: qualified, first-class, and premium. Key assessment indicators include rice yield, broken rice rate, grain content, power consumption per ton, finished product temperature rise, dust concentration, noise, effectiveness, and rubber consumption. Inspection uses counting sampling methods with nonconforming items categorized into A, B, and C classes. This standard provides a unified quality evaluation basis for the industry.

本标准JB/T 51222-1999规定了砻碾组合米机的产品质量分等要求，包括质量指标、试验方法和检验规则。标准将产品分为合格品、一等品和优等品三个等级，主要考核指标有出米率、碎米率、含谷量、吨料电耗、成品温升、粉尘浓度、噪声、有效度和胶耗等。检验采用计数抽样方法，按A、B、C三类不合格项目进行判定。该标准适用于组合米机的质量检测和分等，为行业提供了统一的质量评价依据。