An electronic component consists of one or more parts, a part consists of one or more materials that finally will consist of one or more chemical substances.

An example with figures is shown below:

Almost every chemical substance has a unique CAS-number (Chemical Abstracts Services), which corresponds to "civil registration numbers" (for chemicals). By this number you can check whether a particular substance has "a criminal record". More details will follow.

For the uniformity of the database structure, a few of the most used materials have been built in the same way as the electronic component, though this might seem a bit awkward.

Processes and End-of-Life scenarios only contain data in the first level and do not have links to parts, materials etc.

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Indicators

The first level contains environmental indicators based on:

• Energy parameter, which is simply the total primary energy consumption in MJ, and
  

• Resource parameter, reflecting the consumption of resources in mPR.
  
  

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Estimated Energy parameters

The energy parameters (as well as the Resource parameters) are calculated on the basis of life cycle inventory data (LCI-data) by means of the EDIP-PC Tool. For some electronic components energy parameters have been estimated from values for components with a similar structure. It is thus estimated that the average primary energy consumption for the following components is:

Capacitors	1	MJ/g component
Resistors	0,1	MJ/g component
Semiconductors, discrete	4	MJ/g component
Semiconductors, integrated	14	MJ/g component
Others	0,25	MJ/g component

These values have been used when no specific value for a particular component was available.

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Extractable information

For a particular product it is possible by means of this database to:

• Calculate an environmental profile summarizing the Energy- and Resource parameters.
  
  
• Perform a material declaration of the content of materials and/or chemical substances.
  
  
• Create a list comparing the content of this product with the EU-list of dangerous substances, the list of undesirable substances (from the Danish EPA (Miljøstyrelsen)) and other lists of "suspicious chemicals".
  
  
• Calculate End-of-Life scenarios for your products.
  
  

This is executed in the "Environmental Calculators" and the "Tools for identification of listed chemicals". These tools can be downloaded from the Download Page .