To make sure that every batch of EPS Cement Sandwich Wall Panel delivered to construction projects meets the highest performance standards top manufacturers carry out a full series of strict quality tests on every production batch. The first basic test is the dimension tolerance check which measures the length width thickness and flatness of every panel to make sure all dimensions are within 2mm of the specified design value. Then manufacturers carry out the face density test to verify that the total weight of the EPS Cement Sandwich Wall Panel falls within the specified range to guarantee the correct strength to weight ratio. The bending load test is another critical quality check that applies increasing load on the panel to confirm that the panel meets the required minimum bending strength standard. Every batch of EPS Cement Sandwich Wall Panel also needs to go through a full fire performance test at an independent third party laboratory to confirm that it meets the required non combustible fire rating. Other important tests include sound insulation testing thermal conductivity testing water absorption testing and 1000 cycle freeze thaw testing to make sure the panel can withstand 50 years of harsh weather conditions. Only after passing all these strict quality tests can the EPS Cement Sandwich Wall Panel product get the official quality certification and be approved for delivery to construction sites.