Toyota wants to salute do-gooders by giving 100 cars over 100 days to organizations that could really use a new set of wheels. And voters like you decide who gets a new ride every day.
PEI is the abbreviation for Porcelain Enamel Institute. A PEI Rating is given to a tile product based the hardness of its glaze. This hardness is determined by the manufacturer using a standardized test.
The Porcelain Enamel Institute (PEI) came up with a testing system to rate the strength of the glaze that is applied to the tile against scratching and wearing.