ISO 14044
ISO 14044:2006 specifies requirements and provides guidelines for life cycle assessment (LCA) including: definition of the goal and scope of the LCA, the life cycle inventory analysis (LCI) phase, the life cycle impact assessment (LCIA) phase, the life cycle interpretation phase, reporting and critical review of the LCA, limitations of the LCA, relationship between the LCA phases, and conditions for use of value choices and optional elements.
https://www.iso.org/standard/38498.html
ISO 14025 for Environmental Product Declarations
An Environmental Product Declaration (EPD) is an independently verified and registered document that communicates transparent and comparable information about the life-cycle environmental impact of products. As a voluntary declaration of the life-cycle environmental impact, having an EPD for a product does not imply that the declared product is environmentally superior to alternatives. EPDs exist at multiple scopes from facility-specific and product-specific production to a generalized sector or industry EPD that aggregates life cycle inventory data from multiple manufacturers and their processes. They are completed to a relevant Product Category Rule (PCR) that are published by product manufacturers/declaration holders, or published by ISO 14025 program operators that have completed the third-party verification and registration of the EPD, as defined in ISO 14025, ISO 14044, and ISO 21930 and/or EN 15804.
Handprinting Guide
