British Standards Institution

Source:: ISO
Committee:: SES/1/11 - Sustainable supply chains and chain of custody
Categories:: Company organization and management. General
Comment period start date:: 31/01/2025
Comment period end date:: 26/03/2025
Number of comments:: 0

Comment by:

26th Mar

Scope

This document provides requirements and guidelines for the application of the mass balance chain of custody model, as defined in ISO 22095, to any material or product flow within mass balance systems, including how to attribute specified characteristics to flows of such processes.

This document provides requirements and guidelines for the following matters, amongst others:

— differentiations from controlled blending and book & claim;

— general requirements for organizations active in a mass balance chain of custody;

— system boundaries including geography and time;

— conversion factors;

— the rolling average percentage method;

— the credit method;

— transparency, communication, and claims.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

13/11/2024

3. Public Comments

Public Comments start date:

31/01/2025

Public Comments end date:

26/03/2025

Learn more about the standards development process

Standards Development

BS ISO 13662 ISO 13662 Chain of custody. Mass balance. Requirements and guidelines

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