well for anyone looking to read a metric ton of ISO standards and feels like pirating the hell out of them just for the fuck of it, seems #zlib has alot! but sadly not the one I wanted to look at. https://b-ok.asia/s/?q=author%3AISO&e=1&order=bestmatch
ok well it looks like SIL might be the one who manages this ISO standard anyway (which is sorta weird) but heres the pdf of the approval for #TokiPona to get its own "official" 3 letter abbreviation of TOK
https://iso639-3.sil.org/sites/iso639-3/files/change_requests/2021/2021-043.pdf