Product Abrasion testing must be conducted during or after the manufacturing process to make sure the product meets specifications before shipment. Finally consumer feedback can be monitored and product returns evaluated to make sure testing specifications meet their objective. It is important to know that physical property testing may be impacted by conditions to which the entire system is exposed. For instance, resistance to abrasion is influenced by conditions of the tests such as the nature of abradant; tension of the specimen; the pressure between the specimen and abradant; variable action of the abradant across the area of specimen being abraded; and the dimensional changes in the specimen. For a laboratory test, one should acknowledge the fact that a person may not be able to accurately identify all of the impacts that create conditions that one is attempting to replicate. A majority of standa...