> given the copyrights inherent in the original source material It's not obvious to me that (under US law) these are copyright protected. It may be a similar c

> given the copyrights inherent in the original source material It's not obvious to me that (under US law) these are copyright protected. It may be a similar case as typefaces vs. fonts. The language on the ISO website suggests, at least to me, that you are paying for particular files in particular formats and are not licensing a protected symbol. Also the language in the ISO standards describes abstract symbols, and afaik there is no normative requirement to use the exact images from the standard / ISO to be compliant.