CPC Ver.1.1 - ISIC Rev.3.1 correspondence
This is the correspondence between ISIC Rev.3.1 and CPC Ver.1.1 as shown in the CPC publication.
The 'CPCpart' field indicates if a product is associated with more than one industry. The 'ISICpart' is used in a similar way to show that an industry is linked to multiple products, although almost all industries are linked to a variety of products.
Please note, that certain products in the CPC (e.g. waste products in CPC division 39) are not linked to specific industries.