Methodology for PCF Calculations of Lubricants, Greases and other Specialties


Table 3: Data quality indicators (DQI) and their data quality levels


Data quality indicator (DQI)


1


Technological representative- ness (TeR)


Same technology: All relevant production technologies are considered for the main product and raw materials.


2


Similar technology: The production technology used to model up to 50% of the raw materials is industrially relevant/similar but not the predominant market technology.


Temporal representative- ness (TiR)


Representativeness has been checked and confirmed from the reporting year.


Geographical representative- ness (GeR)


Data correspond to the country average or state of the production location. No region specific averages such as EU, EMEA, or Asia are used to represent a specific state or country.


Representativeness has been checked and confirmed within the last 5 years. Minor changes are known, but the dataset is still considered to be partly representative.


Data correspond to a similar area or region using region-specific averages, such as the EU average.


Completeness (C)


Data collected for all relevant sites and processes within one year that have been measured at a high level of detail. In case of irregular production years, data is collected within up to three years.


Data collected for less than 50 % of sites or processes within one year, or data collected for more than 50% of sites or processes within less than one year. In case of irregular production years data is collected for less than 50% of sites or processes within three years, or for more than 50% of sites or processes within less than three years.


Version 1.2, 15.10.2025 © ATIEL and UEIL 3 (default)


Different or unknown technology: Production of the main product or one or more major raw materials is based on a technology that is known not to be representative.


Data for substantial parts of the production chain is known to be outdated. Data is older than 5 years.


Data correspond to the global average or an unknown area.


Data collected for less than 50% of sites or processes within less than one year or unknown. In case of irregular production years, data is collected for less than 50% of sites or processes within less than three years.


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