Socialism

Anarchism as a political stance isn't an absense of governance. It is the stance that governance should be collaborative and, to the extent possible, voluntary. That means reducing heirarchies of all kind to the bare minimum needed to acomplish a goal.

For standardized things such as these examples you've given, they already work in an anarchist way. 802.11 is created by the ieee lan/man standards comnitee, which takes input from a lot of groups to formulate the standard. The standard itself is fully opt-in, you don't have to implement it as written, your stuff just won't work unless you do.

Safety and effectiveness of medical procedures isn't determined by a standards body, but rather by evolving consensus among medical professionals. What one thinks is safe, another may see as risky. As an example, in the US tonsil removal used to be considered safe and done often. Now its considered a last-resort procedure.