This document specifies the requirements, inspection rules, packaging, marking, labeling and storage of selenium-enriched chicken. This document applies to chicken produced and processed from selenium-rich chickens raised in Pingshan County. Other selenium-enriched poultry meat shall be implemented in accordance with this document. Selenium/(mg/kg) 0.10～0.50 GB 5009.93-2017 Method 1 Volatile base nitrogen/(mg/100g) ≤ 15 GB 5009.228