DEMO — fictional range. Local brief only, NOT SENT. No personal data is collected or transmitted.
TRANSIT
Most damage is movement, not impact.
A parcel is dropped, stacked and vibrated. The drop is the visible event, but the hours of vibration are what most packs actually lose to.
- Filling
- The pack is loaded. Void left here becomes movement later
- Sealing
- The seal is made by hand at speed, which is where a lifted corner comes from
- Sorting
- Every transfer is a drop, and the count matters more than the distance
- Carriage
- Hours of vibration, during which the contents settle and abrade
- Stacking
- The longest-acting load, and the one that softens a pack over time
- Opening
- Because a pack opened with a knife damages what it protected
Illustrative transit record
| Stage | What is tested | How it is tested |
|---|---|---|
| Drop | Whether the pack and contents survive | Dropped onto a hard face, at the declared height |
| Vibration | Whether the contents move or abrade | Shaken at carriage frequencies for a period |
| Seal strength | Whether the closure holds | Peeled after conditioning |
| Stacking | Whether it holds the load above | Held under load, in humidity |

Why vibration is tested as well as drop.
Because they damage differently. A drop is a single event that either survives or does not; vibration works for hours on the void, and a pack that passes a drop test can still arrive with the contents loose and scuffed.
The question worth asking instead.
What the seal strength is after conditioning, not immediately. A seal made on a cold bench behaves differently from one made in a warm warehouse.