ISO 11287:2011

ISO 11287:2011 specifies the parts of a named plant that are suitable for making green tea for consumption as a beverage and the chemical requirements for green tea that are used to indicate that tea from that source has been produced in accordance with good production practice.
ISO 11287:2011 also specifies the packing and marking requirements for green tea in containers.
ISO 11287:2011 is not applicable to green tea subject to further processing such as decaffeination and further roasting.