Coding system for packaging plastics
Plastic bottles, containers and packaging typically have a symbol indicating the type of plastic resin from which the item is made. There are seven numeric codes in total; the first six apply to specific plastic types and the seventh includes the remaining resins.
Polyethylene Terephthalate (PET) used in bottles, carpets and food packaging
High density polyethylene (HDPE) used in piping, automotive fuel tanks, bottles, toys
Polyvinyl chloride (PVC) used in window frames, flooring, bottles, packaging film, cable insulation, credit cards and medical products
Low density polyethylene (LDPE) used in plastic bags, cling film, flexible containers
Polypropylene (PP) used in food containers, battery cases, bottle crates, automotive parts and fibres
Polystyrene (PS) used in dairy product containers, tape cassettes, cups and plates
Other: this category includes any other resins or combinations of one or more of these resins
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