How can multi-layer packaging consisting of different polymers be identified?

Packaging consisting structurally of two or more polymers are identified by the code “7” since, also in this case, Decision 129/97/EC does not include specific codes for these materials.

Anyone wishing to provide more accurate information on the composition of multilayer plastic packaging should follow the provisions of the UNI EN 11469 technical standard, according to which the abbreviations of polymers making up the packaging are written between the symbols “>” and “<”

For example, multilayer packaging made from PET and HDPE may be identified as follows: >PET+HDPE< 7.

Last modified on 21/11/2021