When a customer supplies carbon fiber stock for processing, agree how the received material, delivered parts, usable remainder and scrap will be recorded. A finished-part quantity alone cannot explain the disposition of all supplied stock. Keep the original stock identity through the job.
Identify the material, lot reference, received quantity and relevant condition. State the units used for each quantity. Receipt of a sheet or tube does not automatically confirm that every region is suitable for the requested parts; any material suitability review should remain explicit.
Define the expected disposition
Agree which unused pieces are to be returned, retained for another release or handled under another recorded instruction. Distinguish usable remainder from scrap and from material consumed by the operation. Do not silently treat every offcut as waste or promise that every nominal remainder is reusable.
Close the record against the job
Connect the delivered-part count and material disposition to the same processing release. If quantities are estimated rather than measured, label that basis. Keep unresolved differences visible instead of forcing unlike units into a false balance. The handover should identify what happened to the supplied material and what remains in custody. This is separate from claiming an environmental benefit, establishing a production yield guarantee or deciding ownership from an unlabelled photograph.
