mbanu wrote: ↑Wed Feb 17, 2021 11:50 am
We can also use these standards in reverse to find new teas. For instance, if GB/T 32719.4 is liubao tea, what is GB/T 32719.3? In this case it is "Xiangjian tea". Well, what is that? It is a post-fermented tea from Hunan. So then we find a tea with that GB/T, and we know it is Xiangjian tea, even though it uses a different English name.
However, this only works with standards that have decimal parts. If we go back to the original post on Anxi tea, if we go down a standard number to "GB/T 19597", that is about nuclear facilities, and if we go up to "GB/T 19599", that is about fishing nets.
The wording "Product of geographical indication, [something] tea" seems consistent, so we have, for example
GB/T 18650 Product of geographical indication ― Longjing tea
GB/T 18665 Product of geographical indication ― Mengshan tea
GB/T 18745 Product of geographical indication ― Wuyi rock-essence tea
GB/T 18957 Product of geographical indication ― Dongting (mountain) biluochun tea
GB/T 19460 Product of geographical indication ― Huangshan maofeng tea
GB/T 19691 Product of geographical indication ― Gougunao tea
GB/T 19698 Product of geographical indication ― Taiping houkui tea
GB/T 20354 Product of geographical indication ― Anji bai tea
GB/T 20360 Product of geographical indication ― Wuniu zao tea
GB/T 20605 Product of geographical indication ― Yuhua tea
GB/T 21003 Product of geographical indication ― Lushan yunwu tea
GB/T 21824 Product of geographical indication ― Yongchun foshou tea
GB/T 22109 Product of geographical indication ― Zhenghe white tea
GB/T 22111 Product of geographical indication ― Puer tea
GB/T 22737 Product of geographical indication ― Xinyang maojian tea
GB/T 24710 Product of geographical indication ― Tanyang gongfu tea
GB/T 26530 Product of geographical indication ― Laoshan green tea
This can be helpful if you trying to figure out if a tea is from a particular place or just done in the style of that place. For example, there is GB/T 22109 for Zhenghe white tea, and GB/T 22291 for white tea generally, or GB/T 19598 for Anxi Tieguanyin and GB/T 30357.2 for Tieguanyin generally.