指定测试筛对实验室测定谷物样品中异物的要求。不适用于测试谷物进行虫害检测。取消并取代第二版，经过技术修订

Specifies requirements for test sieves for the laboratory determination of foreign matter in a sample of cereals. Does not apply to test sieves for testing cereals for insect infestation. Cancels and replaces the second edition, which has been technically revised.