从分析物料对产品质量特性性能指标形成的影响、物料本身对存放环境的要求和物料存放风险等3个方面入手,阐述了物料分级、分种、分类按阶段质量管理的必要性,并提出了物料的分级别、分种类、分类别按阶段管理的方法,以期达到贮存无损坏,发放无错发、无混料,来源、去向可追溯的质量管理目的。 The paper analyzes the influence of materials on the formation of performance indexes of product quality characteristics, the requirement of material itself for storage environment and the risk of material storage, and then elaborates the necessity of stage quality management of material classification, classification and classification Material classification, sub-categories, sub-categories according to stage management methods, with a view to achieve no damage to storage, distribution of non-fault-free hair, without mixing, origin, to trace the purpose of quality management.