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In selecting recycled stock, consider how it is processed and categorized. Recycled papers typically are categorized by the bleaching process used to create them. These categories are TCF (Totally Chlorine Free), ECF (Elemental Chlorine Free) and PCF (Process-Chlorine Free).
TCF means that no chlorine compounds are used to whiten virgin-content paper. Therefore, any paper with post-consumer waste cannot be designated TCF. ECF is fairly common, and its bleaching process uses chlorine dioxide as the bleaching agent instead of chlorine gas, significantly reducing the dioxins discharged from a paper mill. PCF indicates that no chlorine was used in the production of the recycled product.
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