> For the complete documentation index, see [llms.txt](https://docs.sta4.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sta4.net/stasteel-v3/modelleme/yapi-bilgi-girisi/celik-yonetmeligi/ts-en-1993.md).

# Ts En 1993