The pressure test apparatus for ceramic materials meets IEC60335-1 'Household and similar electrical appliances – Safety – Part 1: General requirements' Clause 22.32.

During the test, break the insulating ceramic material into pieces, soak it in a solution containing 1 gram of fuchsin per 100 grams of methylated alcohol, apply a pressure of 15Mpa, keep it for about 12 hours, take out the pieces, rinse and dry and break into finer pieces. shards and inspect the new cracks for traces of dye to determine whether the material is tightly sintered. The equipment consists of a magenta and methylated alcohol test chamber and a pressurizing device. The pressure-resistant container can withstand a pressure of 20Mpa, and the manual pressurizing pump can achieve a pressurizing capacity of 15Mpa. The equipment is equipped with an automatic pressure control device system, which can control the pressure by computer and automatically save the test data. The test data can be saved to the computer, and the test data can be played back.