1. Mildewed grains/%≤ 2.0 2. Moisture content/%≤ 15.5 3. Impurities/% total amount≤ 0.25 4. Yellow grain rice content/%≤ 0.5 5. Mixing rate/%≤ 5.0 5. Amylose content /% 14.0～20.0 6. The limit of pollutants should comply with the regulations on grain milling products in GB2762-2017. 7. The maximum pesticide residue limit should comply with the regulations for rice in GB2763-2021. 8. Mycotoxin limits should comply with the regulations on grain milling products in GB2761-2017. 9. The limit of toxic and harmful fungi should comply with the regulations on rice in GB2715-2016.