The sensory requirements require a slightly yellowish or off-white color that is uniform. The smell is normal and no peculiar smell. Physical and chemical index project indicators Imperfect grain content (%) ≤3.0 Total impurity content (%) ≤0.25 Inorganic impurity content (%) ≤0.02 Yellow grain rice content (%) ≤1.0 Total broken rice content (%) ≤15.0 Small broken rice Content (%) ≤1.0 Moisture content (%) ≤14.5 Selenium content (mg/kg) 0.04-0.30 Lead (calculated as Pb) (mg/kg) ≤0.2 Cadmium (calculated as Cd) (mg/kg) ≤0.15 Total Mercury (calculated as Hg) (mg/kg) ≤0.02 Inorganic arsenic (calculated as As) (mg/kg) ≤0.2