How should vacuum level and evacuation time be tested together on a commercial vacuum packer?

Record target vacuum, time to reach the target, holding time, and package performance using the actual bags. When the machine is part of a line, evaluate its performance together with the actual production sequence and buffers. Safety functions and abnormal-condition behavior should be tested separately from ordinary production performance. This makes the procurement requirement easier to verify and gives the production team a repeatable operating reference. The goal is a repeatable technical definition that purchasing, production, quality, and service teams can all use after delivery.