This standard is applicable to the determination of air permeability of coarse pottery, fine pottery and fine pottery products for daily use at room temperature, and can also be used to measure refractory products, architectural ceramics, porous ceramics, etc.
GB/T 4736-1984 history
2022GB/T 4736-2022 Test method for permeability gas of daily-use pottery
1984GB/T 4736-1984 Standard test method for permeability gas of pottery ware of daily use