ISRI approves two new specifications

The board of directors for the Institute of Scrap Recycling Industries (ISRI), Washington, approved the addition of two new specifications to the ISRI Scrap Specifications Circular at its winter meeting Feb. 21, according to an ISRI news release. One of the specifications is for inbound resident single-stream material, while the other is for inbound residential dual-stream material.

Inbound residential single stream is material derived from a recycling method whereby residents of a community place allowed materials in a specifically designated receptacle to be left at a drop-off point outside their residence. The purpose of the specification is to give material recovery facilities (MRFs) and municipalities a common vernacular to negotiate the items that comprise the material stream derived from a single-stream curbside collection program. The specifications describe not only the items that should be part of the system but also prohibitives and other materials that could be considered contaminants, ISRI says.

Inbound residential dual-stream is the material derived from a recycling method whereby residents of a community place allowed materials in specifically designated receptacles to be left at a drop-off point outside their residence that use separate bins or carts for paper and containers and are collected in separate compartments on one or more trucks. The purpose of the specification is to give MRFs and municipalities a common vernacular to negotiate the items that comprise the material stream derived from a dual-stream curbside collection program. The specifications describe not only the items that should be part of the system but also prohibitives and other materials that could be considered contaminants.

The specifications were previously approved by ISRI’s Paper and Plastics Divisions along with its Paper Stock Industries (PSI) Chapter and MRF Committee.

ISRI’s Scrap Specifications Circular provides industry guidelines for buying and selling a variety of processed scrap commodities, including ferrous, nonferrous, paper, plastics, electronics, rubber and glass.