Abrasion test on closure coatings
The Tumbling Weight Loss Test determines crown closures, in abrasive wear (based excessive amounts of dust which could contaminate the bottled beverage). A certain number of crown closures is weighted, tumbled and weighted again. The loss of weight is the mass of the generated dust.
The defined abrasion weight is tumbled inside of the sample chamber over a defined period of time and entailing repeatable coating abrasion on the sample closures.