The IP Test classifies and rates the degree of protection provided against intrusion (body parts such as hands and fingers), dust, accidental contact, and water by mechanical casings and electrical enclosures. Different products require different levels of testing and different types of testing. Generally, ingress protection is divided into testing for ingress from foreign/solid objects (Dust) or liquids (Water). Ingress protection testing helps determine whether a particular product is going to function appropriately when placed in the field.