G-06 (Buildings) / G-07 (Products) Functional equivalent

Aspect G-06 (Buildings) / G-07 (Products) Functional equivalent Description According to [EN 15643-1], the functional equivalent is a representation of the required and quantified functional and/or technical requirement for a building or an assembled system (part of works), which is … Continue reading

G-07 (Buildings) / G-08 (Products) Functional equivalent vs. functional unit vs. declared unit

Aspect G-07 (Buildings) / G-08 (Products) Functional equivalent vs. functional unit vs. declared unit Description ISO 14040, ISO 14044 and EN 15804 define a functional unit; EN 15804 also defines a declared unit. EN 15978 defines a functional equivalent.What are … Continue reading

G-35 (Buildings) / G-33 (Products) Normalization of indicators

Aspect G-35 (Buildings) / G-33 (Products) Normalization of indicators Description According to the ILCD Handbook, the normalization step refers to the expression of indicators (LCIA, midpoints or endpoints) relative to a common reference by dividing the indicator results by the … Continue reading

G-36 (Buildings) / G-34 (Products) Weighting of indicators

Aspect G-36 (Buildings) / G-34 (Products) Weighting of indicators Description According to the ILCD Handbook, the weighting step refers to an optional step of the ISO 14044 standard to support the interpretation of the profile as a fully aggregated result. … Continue reading

G-37 (Buildings) / G-35 (Products) Uncertainty analysis for comparative assertion

Aspect G-37 (Buildings) / G-35 (Products) Uncertainty analysis for comparative assertion Description An uncertainty analysis measures the variability of the data values: for example, a low variance leads to a high precision. Because of the long supply chain of building … Continue reading

G-38 (Buildings) / G-36 (Products) Sensitivity analysis

Aspect G-38 (Buildings) / G-36 (Products) Sensitivity analysis Description According to the ILCD Handbook, the goal of a sensitivity analysis is to assess the reliability of the study by adjusting the main parameters to see how this affects the final … Continue reading