Thanks, but I think you missed my point.
It doesn't matter if you can look this stuff up.
People won't do that.
Even if they do or can take the time to look this stuff up, they still might not be sure, like, this symbol on this package is hard to read.. based on what you sent I think this *might* be PET, but I can't be sure because the imprint isn't that great.
If millions of these and other containers are being shipped around the world, outside of countries where most people can read them, then people in those countries need to be able to EASILY read them.
People are not going to go on the web to research the symbols every time they get a container they don't recognize.
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If they're going to continue to produce and use this and other plastic packaging then there needs to be some sort of international agreement or standard practice to put resin types on these products that are easy to interpret by everybody in every country, and that is seemingly Arabic Numerals.