What should i use to determine safe pressure for leak detection?

To determine safe pressure for leak detection, use the manufacturer's specifications for the system or component being tested, as they provide maximum allowable pressure limits. Additionally, consider the type of fluid being used and the materials involved, as different materials can withstand varying pressures. It's also advisable to consult industry standards or guidelines relevant to your specific application, and to ensure that all safety protocols are followed during the testing process.