Film-roll sampling before shipment: record what was checked
A roll sample is more valuable when the roll identity, winding direction, selected area and observation are written down. This helps connect a later customer comment to the relevant material and process record.
Quality note
A roll sample is more valuable when the roll identity, winding direction, selected area and observation are written down. This helps connect a later customer comment to the relevant material and process record.
The goal is not more paperwork; it is a traceable starting point for discussion.