Hey Simon!
they are still simply steel cartridges.
Yeah right. It seems the original content wouldn't matter regarding the recycling process:
- https://corporate.migros.ch/de/nachhaltigkeit/recycling/tipps-tricks/recycli... - https://www.wiederverwendung.ch/Rahmblaeserpatronen
What do you think of
recycling:gas_capsules=yes
for covering all metal-made, finger-sized, single-usage containers for pressurized, non-inflammable gases?
One should note that https://wiki.openstreetmap.org/wiki/Tag:amenity%3Drecycling already defines
recycling:gas_bottles=yes
as
Pressurized gas bottles such as those for camping propane and butane. These are often prohibited elsewhere (See Coleman's Green Key program).
and a new tag should distinctly differ from it.
Best regards and looking forward to your input
Lukas