JIS B 8228:2020 PDF Download

JIS B 8228:2020 is a standard that outlines the requirements for the application and installation of safety devices, excluding standalone bursting disc safety devices. It covers various safety devices such as safety valves, safety valves in combination with bursting disc safety devices, pilot-operated safety valves, and controlled safety pressure-relief systems.

The standard assumes a single-phase flow of fluid discharged from the safety device and provides normative requirements for the application and installation of these devices to protect static pressure equipment. However, for two-phase flow conditions, specific guidance is provided in JIS B 8227.

The standard highlights that equipment connected in a system by piping, free from potential blockages and without valves that can isolate any part, can be considered a safety system for pressure relief applications.

It's important to note that JIS B 8228 does not cover other safety devices like monitoring, control, regulation devices, or any other limiting devices allowed by national regulations. The standard references various national regulations in Japan, including the High Pressure Gas Safety Act, Electricity Business Act, Gas Business Act, and Industrial Safety and Health Act.

The international equivalent standard to JIS B 8228 is ISO 4126-9:2008, "Safety devices for protection against excessive pressure - Part 9: Application and installation of safety devices excluding standalone bursting disc safety devices." The degree of correspondence between the ISO and JIS standards is indicated as IDT (identical), MOD (modified), or NEQ (not equivalent) according to ISO/IEC Guide 21-1.