What information should I declare to properly calculate the CEI?
Even if a certain amount of data can be assumed, there is a minimum rate of information required to calculate the CEI. All the information used to calculate the CEI is defined as mandatory data. Only a part of the mandatory data can be substituted by an assumption from BCome methodology. Each analysis has a max assumption rate based on the data for which a standardized assumption is available. To sum up, the type of required data is divided between:
- Mandatory (M): Mandatory data to be filled in to be able to make the calculation.
- Mandatory, assumption allowed (M-A): Mandatory data to be filled on which an assumption can be made according to BCome methodology.
To obtain accurate and precise results for the CEI product, follow the data summary below.
| Scope | Type of information required |
|---|---|
| Articles | – Name and reference Mandatory – Units produced Mandatory (assumption allowed) – Category to which the product belongs Mandatory – Materials used (parts) Mandatory – Item’s weight Mandatory – Weight of each material within the article Mandatory (assumption allowed) – Manufacturing losses (%) Mandatory (assumption allowed) – Article application Mandatory – Eco-design practices validation Mandatory – Recovery rate through end-of-life collectors Mandatory – Destination of waste after collection Mandatory – Energy recovery and recycling efficiency Mandatory (assumption allowed) |
| Materials | – Material name Mandatory – Material reference Mandatory (assumption allowed) – Category Mandatory – Composition percentages Mandatory – Composition names Mandatory – Material processing losses (%) Mandatory (assumption allowed) |
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- Minimum knowledge rate: 68%
- Max assumption rate: 32%
Contact us or access this methodological document if you want to know which assumptions will be created for each case.