Test the final sales pack, not a temporary box
The sample should use the production carton, inserts, bags, accessories, labels, and sealing method. A faucet packed in hand-cut foam for a demonstration does not validate the intended retail or export pack. Condition the sample as agreed before testing and record its gross weight and dimensions.
Match the test to the distribution route
Parcel delivery, palletized export, marketplace fulfillment, and project-site handling create different risks. Agree the applicable standard or customer protocol, drop height, orientations, number of drops, and whether the test applies to the inner box, master carton, or both.
Inspect more than the outer carton
After testing, check faucet finish, body deformation, cartridge operation, hoses, threads, accessories, and internal movement. Look for metal-to-metal contact and loose components that can scratch during vibration. A dented carton may still protect the product, while an intact carton can hide internal finish damage.
Define pass criteria before the test
Decide which carton damage is acceptable and which product defects cause failure. Cosmetic standards for premium finishes should be explicit. Photograph every face before and after testing, then link the report to the exact packaging revision and product model.
Correct the weakest point
When a pack fails, identify whether the cause is excessive empty space, weak corner support, accessory movement, insufficient separation, carton strength, or sealing. Change one controlled variable, repeat the test, and lock the approved packaging specification before mass production.