2.1 This procedure provides a framework for the evaluation and validation of Defined Source material content claims in manufactured products when such claims are based on segregated material flows (Section 12) or on a credit account or llocation system (Section 14) Requirements for Chain of Custody between sites (Section 13) are included and applied when transferring material between multiple facilies. Not all sections of the standard will apply in every evaluation. Segregated material flows or mass balance accounting may be used when evaluating any Defined Source of material. The method(s) used must be included in the claim. Claims typically consist of the manufacturer indicating either an average percentage or minimum percentage of content. This procedure identifles and addresses al substances included as part of the product, part or material.
