ISO 59020:2024 "Circular economy - Measuring and assessing circularity performance" is the measurement standard within the ISO family on the circular economy. It specifies how a delimited system determines its circularity performance at a given reference date: set system boundaries, quantify resource flows, calculate indicators, verify the calculation, report - and repeat periodically. It distinguishes four system levels, from the region down to the individual product; loopflow works at the product level. It is complemented by ISO 59004 (terminology and principles), ISO 59010 (transforming business models) and ISO 59040 (Product Circularity Data Sheet).
For the data framework this results in a clear division into two parts. Mandatory are a small number of narrowly defined indicators on resource inflow and outflow: the shares of reused, recycled and renewable materials as well as actual reuse, recycling and biological restoration. Everything else - service life, repairability, energy, water, economic viability - is supplementary. We adopt this division deliberately: the core is collected for every product so that figures remain comparable across product generations; the supplementary part only where it actually influences a decision.
Compared with the original loopflow KPI list, this means a sharpening rather than an expansion: material consumption and material origin as well as end-of-life and take-back form the mandatory core. Design for repair, modularity, logistics, certificates and user integration are retained but move into the supplementary layer - they are steering variables, not accounting variables. The conventional KPIs (cost, dimensions, weight, unit numbers) run alongside unchanged, because without them no trade-off becomes visible.
To be checked: The standard is subject to a fee (CHF 225). The indicator names in the illustration come from the freely available draft standard and from a presentation by the responsible ISO committee, not from the purchased text of the standard. Before any binding use, for instance in a funding application, they must be checked against the original. A revision of the standard (Edition 2) is in progress.