GB 18650-2002

GB 18650-2002 specifies the definition, classification, sensory requirements, and labeling standards for Longjing tea produced within designated geographical origins in Zhejiang Province, China. It is applied to authenticate and regulate the quality of Longjing tea sold under protected geographical indication status, ensuring that only tea from approved production areas and meeting specific processing criteria can use the "Longjing" name. This standard is used by tea producers, quality inspection agencies, and regulatory bodies to prevent mislabeling and maintain the product's regional identity in domestic and international markets.