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SPI aims to standardize recycling symbols.

SPI Aims to Standardize Recycling Symbols

To facilitate the separation and recycling of post-consumer plastic products, a committee of SPI members and staff is preparing a position paper on recycling codes.

The committee seeks to harmonize various existing standards, as each coding system employs a different symbol on products. For example, SPI's Voluntary National Container Material Code System uses the "chasing arrows" symbol. The American Society for Testing and Materials (ASTM) Standard for Generic Marking of Plastic Products uses a triangle. And the Society of Automotive Engineers (SAE) uses a rectangle. Each system usually uses the same acronyms for identifying resins, however.

The committee will recommend that all manufacturers adopt the ASTM standard except where other standards may be more appropriate. SPI's Technical Affairs Department has been directed to work with ASTM, SAE, and the International Standards Organization to ensure that plastic material identification acronyms are consistent.
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Title Annotation:Society of the Plastics Industry
Publication:Plastics Engineering
Article Type:Brief Article
Date:Sep 1, 1991
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