What proves a brass fitting’s recycled-content claim?

I’d compare them in two stages: first rule out any fitting without clear alloy and potable-water approval for the intended use; then compare the environmental information among the suitable options. A small table could list the source and scope of the recycled-content claim, expected service life, ease of repair or replacement, and end-of-life options. I’d keep those as separate factors rather than combining them into a single sustainability score.

I’d usually give a clearly longer expected service life more weight than easier replacement: avoiding an early replacement matters even if the next one is simple to fit. But if the service-life difference is uncertain and one fitting can be repaired without replacing the whole assembly, repairability could be the stronger practical advantage. I’d keep both in the comparison rather than assume either wins in every case.

I’d separate a specific recovery route from a general “recyclable” claim. If a fitting can go through a local scrap-metal collection or a known metal-recovery stream, that’s more useful than recyclability in principle; the route still may not be convenient or guaranteed. I’d treat clear end-of-life information as a plus, but not enough to outweigh a meaningful, well-supported difference in service life.

I’d look for product-specific documentation that states the percentage and its basis - for example, whether it refers to the fitting’s material and whether the content is pre- or post-consumer. It’s more useful if the claim also explains how the figure was verified or can be traced back to supporting records. I’d keep that evidence separate from the alloy specification and potable-water approval: those establish suitability, not the recycled-content percentage.