The water permeable brick test is used to determined the permeability coefficienct ( height of water drop per second under standard temperature). The purpose is to provide a mean of quantifying the water permeability of hardscape pavement. The value can act as a part of compliance documentation to demonstrate the water permeability of hardscape pavement against the China national requirement.

The water permeable brick test is performed according to the following test standard:

- JC/T 945-2005