GB/T 22183-2008 in English

《GB/T 22183-2008谷物检验筛》由TC270（全国粮油标准化技术委员会）归口，TC270SC1（全国粮油标准化技术委员会原粮及制品分会）执行，主管部门为国家粮食和物资储备局。
本标准规定了谷物检验筛的要求。谷物检验筛在实验室使用，用于检出谷物样品中的杂质和穿过下列规格检验筛的物质。杂质的存在影响谷物的商业价值。人们通过各种分离过程来测定样品中杂质的量，其中一种重要
的分离方法是检验筛分。检验筛分的程序可以由商业惯例、合同或官方的规则来确定，精确度较低。尽管其他特征也影响测定结果，通常仅规定检验筛孔的直径或宽度，对于其他特征则不做规定。

Scope

This standard specifies the requirements for grain inspection sieves. Grain inspection sieves are used in laboratories to detect impurities in grain samples and substances that pass through the inspection sieves of the following specifications. a) Oblong hole inspection sieve 1.00mm×20.0mm; 1.50mm×20.0mm; 1.60mm×20.0mm; 1.70mm×20.0mm; 1.80mm×20.0mm; 1.90mm×20.0mm; ×20.0mm; 2.25mm×20.0mm; 2.50mm×20.0mm; 2.80mm×20.0mm; 3.50mm×20.0mm; 3.55mm×20.0mm b) Diameter of round hole inspection sieve 1.40mm; diameter 1.80mm; diameter 4.50mm The test sieves with oblong holes listed in a) above are mainly used to separate "shrunken kernels" from rye, triticale, durum, common wheat and barley. This does not include inspection sieves with apertures of 1.50 mm and 1.60 mm, which are commonly used for rice grading. It also excludes test sieves with openings of 2.50 mm and 2.80 mm, which are normally used for testing malted barley. A round hole sieve with a hole diameter of 1.40mm was used to separate the debris (small broken rice) from the rice. A round hole sieve with a hole diameter of 1.80 mm is suitable for sorghum. A round hole sieve with a hole diameter of 4.50 mm is used to separate broken kernels from corn.