The tests used to determine biocompatibility of a material are used in regards to ISO 10993. These tests can include cytotoxicity, genotoxicity and irritation. These test if the material is poisonous to the cells or genes. They even test if the material will irritate the skin or body and if it destroys blood cells. The tests will differ depending on what material are you testing. For example if you reference the toxicity table you will see that the what type of material comes in contact with the body has an affect on what tests should be used. Then you would have to determine what part of the body it would come in contact with and finally how long it will be in contact with this part of the body. With these three boundaries you can narrow down to the certain tests you need to test the biocompatibility of the material.