What does elementary flow mean?
Elementary flow is material or energy entering from the environment without prior human transformation, or leaving to the environment without subsequent human transformation.
elementary flow
A regulatory term referring to material or energy entering the system being studied that has been drawn from the environment without previous human tra.
1 official sourcessingle_source
Official definitions by source
ISO 14067:2018
ISO 14067:2018 - Greenhouse gases — Carbon footprint of products
material or energy entering the system being studied that has been drawn from the environment without previous human transformation, or material or energy leaving the system being studied that is released into the environment without subsequent human transformation
Reference: 3.1.3.10
Regulatory context
This term originates in ISO 14067:2018 and/or ISO 14044 LCA methodology. It is used in EU product regulation — particularly under the EU Battery Regulation (PEF method for carbon footprint) and ESPR (environmental footprint) — because both regulations require lifecycle-based quantification of environmental impacts. Practitioners applying these regulations should be familiar with these LCA/PEF concepts to correctly scope, conduct, and verify product-level environmental assessments.
Practical application
This term matters when life-cycle inventory work needs to distinguish flows exchanged with the environment from flows exchanged between human-controlled processes.
Minespider commentary
For Minespider, elementary flow is a system-boundary term for LCA data modeling.
Common confusions
- Assuming the everyday meaning of elementary flow is enough without checking the official source definition.
- Using elementary flow as a loose generic label rather than the narrower meaning used in the source text.
- Ignoring how elementary flow connects to adjacent technical or product terms in the same regulatory framework.