I love how international standards create reliable guarantees of interoperability between different items created in different countries with different languages. For instance, I recently ordered a specific piece of technical equipment and despite the fact that the listing was most likely not written by someone for whom English is their first language, it was easy enough to see that it clearly supported ISO whatever, so it would definitely work with my existing system based on that same standard. Easy to order long distance and wait for it to be loaded onto a container ship and travel across the Pacific Ocean sight unseen, just based on a spec list. When it arrives with literally zero label, documentation, marking, or in fact any text at all, I can just hook it up and oh come the heck on it doesn't even support ISO whatever, only a couple of the related similar standards also listed in the specs? What the heck, seriously? Ugh, time to start over I guess.
Same in the software side. I write code to download data from a couple of dozen sites all supposedly compliant with the same international standards. My code is full of "if-then" statements to handle how different sites implement the standards in different ways. None of which is documented, of course.