For customers buying enclosures: IP ratings define the level of protection provided against the penetration of solid objects and liquids. NEMA type ratings define which applications each enclosure is suited to.
The snap bushing test procedure details the processes required for testing insulating bushings to ISO9001:2000 standard. From multiple test assemblies, the procedure covers areas such as installation and elevated temperature tests.
This standard is intended by UL to serve as a preliminary indication of a plastic's acceptability for use as part of a device or appliance with respect to its flammability. It doesn't reflect the hazards of a material under actual fire conditions.
Used to determine the suitability of products used in high temperature and high pressure wash down or sanitisation equipment, this rating refers to a product's ability to resist ingress of high temperature and high pressure steam or water.