ISO 7206-10 Static head burst test
In the static burst test, the strength of the ball head is determined in connection with the stem trunnion. After the head has been attached to the stem trunnion with a defined force, a static axially acting load is applied to the head at a fixed rate. A termination criterion is, among others, a breakage of the head. For a successful test, five samples must be tested without failure to a defined maximum load.