Industry-standard material grade codes (e.g. Barley, Birch, Honey) defined by the Institute of Scrap Recycling Industries that tell mills exactly what they're buying.
## What are ISRI grades? The **Institute of Scrap Recycling Industries (ISRI)** publishes the *Scrap Specifications Circular*, the universal grade dictionary that scrap dealers and mills use to describe a load. Every grade has a short name that fits on a BOL line. ## Common nonferrous codes - **Barley:** #1 copper wire, bright clean uncoated. - **Berry:** #1 copper, bare uncoated 1/16" thick or more. - **Birch:** #2 copper wire (oxidized, with light coatings). - **Cliff:** #1 copper tubing, clean ends. - **Honey:** Yellow brass scrap. - **Tassel:** Brass shells. - **Talon / Tale:** Mixed irony aluminum. ## Common ferrous codes - **HMS #1 and HMS #2:** Heavy Melting Steel. - **Busheling (#205):** Clean unprepared steel sheet. - **P&S (#231/232):** Plate & Structural. ## Why operators care A ticket that says "Birch" instead of "scrap wire" sells for the right price and clears the mill's incoming-load inspection without a downgrade. ## How WeighPay handles ISRI grades WeighPay ships with the full ISRI grade catalog pre-loaded as material codes; operators pick from a typeahead, prices auto-pull from the current price list, and BOLs print the ISRI code.