Every clca article tagged “declared unit” — 4 technical pieces covering the topic from methodology, standards interpretation and practical application angles.
4 articles
An EPD is read in five steps: the cover data, the declared unit, the module scope, the GWP rows and the comparability conditions. Red flags, and moving EPD data into a building LCA.
Read moreA product's embodied carbon is the sum of its A1–A3 emissions per declared unit. The formula, the A1/A2/A3 split, pulling values from EPDs, the biogenic carbon distinction and a worked example for 1 m² of wall.
Read moreThe functional unit must reflect performance; the declared unit reflects physical quantity. Confusing the two destroys EPD comparability.
Read moreThe calculation behind an EPD is an LCA, but not a free one: the PCR dictates what you calculate and how. The flow from rule set to result table.
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