This is an effort to map the interlinkages between various industrial & product classification systems along with other databases of interest (facility pollution, LCA, etc.).

This is a rough map of all the classification and data sets that we are aware of:

In the CodeLinkR folder we are working on software that can read the classifications and their concordances. The matrices below shows the current status of these efforts. The metadata used is stored in classifications.yaml and concordances.yaml.

Which classification codes have been linked:

What this shows us is that if you have one dataset using Combined Nomenclature (CN), it's possible to link it to another dataset using NACE by the following set of translations: CN -> SITC -> HS -> ISIC -> NACE.

Which specific versions of the classification codes have been linked:

• RAMON - Reference And Management Of Nomenclatures: Index of Correspondence Tables
• RAMON - Reference And Management Of Nomenclatures: Metadata
• United National Statistics Division - Classifications Registry
• World Bank Product Concordances

• ANZSIC - Australian and New Zealand Standard Industrial Classification
• ISIC - International Standard Industrial Classification of All Economic Activities
• JSIC - Japanese Standard Industrial Classification
• NACE - Statistical Classification of Economic Activities in the European Community (nomenclature statistique des activités économiques dans la Communauté européenne)
• NAICS - North American Industry Classification System
• SIC - Standard Industrial Classification

• BEC - Broad Economic Categories
• BTN - Brussels Tariff Nomenclature
• CAS Registry - Chemical Abstract Service - Registry of chemicals
• CCT - Common Customs Tariff
• CN - Combined Nomenclature
• CPA - Statistical Classification of Products by Activity
• CPC - Central Product Classification
• GSIN - Goods and Services Identification Number
• HS - Harmonized System
• NAPCS - North American Product Classification System
• NHM - Harmonised Commodity Code 'Nomenclature harmonisée des marchandises'
• NIMEXE - Nomenclature of Goods for the External Trade Statistics of the Community and Statistics of Trade between Member States
• NST/R - Standard Goods Classification for Transport Statistics/Revised
• PRODCOM - PRODuction COMmunautaire
• SITC - Standard International Trade Classification
• SRS - Substance Registration System
• UNSPSC - United Nations Standard Products and Services Code

• CPC - Cooperative Patent Classification. This is used to classify patents by the USPTO.
  • Concordances from CPC to IPC and ECLA.
• IPC - International Patent Classification
• USPC - United States Patent Classification

The data is represented using the graphviz dot format in the file WhatLinksToWhat.dot.m4. We additionally use m4 to help replace variable names with colors representing the different types of classifications.

The image shown on this page is rendered with graphviz using:

bash ./WhatLinksToWhat.sh

This script also generates the WhatLinksToWhat.dot file, and you can use this to then render to other formats like svg.